     1→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-285-		Where("node_state.id NOT IN (SELECT ns2.id FROM node_state ns2 WHERE ns2.time_stamp = (SELECT MAX(ns3.time_stamp) FROM node_state ns3 WHERE ns3.node_id = ns2.node_id))").
     2→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-286-		OrderBy("node.cluster ASC", "node.subcluster ASC", "node.hostname ASC", "node_state.time_stamp ASC").
     3→internal/repository/node.go:287:		RunWith(r.DB).Query()
     4→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-288-	if err != nil {
     5→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-289-		return nil, err
     6→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-290-	}
     7→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-291-	defer rows.Close()
     8→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-292-
     9→--
    10→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-361-	}
    11→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-362-
    12→internal/repository/node.go:363:	rows, err := query.RunWith(r.stmtCache).Query()
    13→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-364-	if err != nil {
    14→internal/repository/node.go-365-		queryString, queryVars, _ := query.ToSql()
    15→internal/repository/node.go-366-		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
    16→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-367-		return nil, err
    17→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-368-	}
    18→--
    19→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-410-	}
    20→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-411-
    21→internal/repository/node.go:412:	rows, err := query.RunWith(r.stmtCache).Query()
    22→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-413-	if err != nil {
    23→internal/repository/node.go-414-		queryString, queryVars, _ := query.ToSql()
    24→internal/repository/node.go-415-		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
    25→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-416-		return nil, err
    26→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-417-	}
    27→--
    28→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-494-		OrderBy("node.hostname ASC")
    29→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-495-
    30→internal/repository/node.go:496:	rows, err := q.RunWith(r.DB).Query()
    31→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-497-	if err != nil {
    32→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-498-		cclog.Warn("Error while querying node list")
    33→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-499-		return nil, err
    34→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-500-	}
    35→internal/repository/node.go-501-	nodeList := make([]*schema.Node, 0, 100)
    36→--
    37→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-523-		OrderBy("node.hostname ASC")
    38→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-524-
    39→internal/repository/node.go:525:	rows, err := q.RunWith(r.DB).Query()
    40→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-526-	if err != nil {
    41→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-527-		cclog.Warn("Error while querying node list")
    42→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-528-		return nil, err
    43→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-529-	}
    44→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-530-
    45→--
    46→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-556-	query = applyNodeFilters(query, filters)
    47→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-557-
    48→internal/repository/node.go:558:	rows, err := query.RunWith(r.stmtCache).Query()
    49→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-559-	if err != nil {
    50→internal/repository/node.go-560-		queryString, queryVars, _ := query.ToSql()
    51→internal/repository/node.go-561-		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
    52→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-562-		return nil, err
    53→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-563-	}
    54→--
    55→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-618-	query = query.GroupBy(column + ", time_stamp").OrderBy("time_stamp ASC")
    56→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-619-
    57→internal/repository/node.go:620:	rows, err := query.RunWith(r.stmtCache).Query()
    58→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-621-	if err != nil {
    59→internal/repository/node.go-622-		queryString, queryVars, _ := query.ToSql()
    60→internal/repository/node.go-623-		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
    61→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-624-		return nil, err
    62→/Users/jan/prg/CC/cc-backend/internal/repository/node.go-625-	}
    63→--
    64→internal/repository/jobCreate.go-76-	query := sq.Select(jobCacheColumns...).From("job_cache")
    65→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-77-
    66→internal/repository/jobCreate.go:78:	rows, err := query.RunWith(r.stmtCache).Query()
    67→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-79-	if err != nil {
    68→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-80-		cclog.Errorf("Error while running query %v", err)
    69→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-81-		return nil, err
    70→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-82-	}
    71→/Users/jan/prg/CC/cc-backend/internal/repository/jobCreate.go-83-	defer rows.Close()
    72→--
    73→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-331-	}
    74→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-332-
    75→internal/repository/tags.go:333:	rows, err := q.RunWith(r.stmtCache).Query()
    76→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-334-	if err != nil {
    77→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-335-		return nil, nil, err
    78→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-336-	}
    79→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-337-
    80→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-338-	counts = make(map[string]int)
    81→--
    82→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-506-	}
    83→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-507-
    84→internal/repository/tags.go:508:	rows, err := q.RunWith(r.stmtCache).Query()
    85→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-509-	if err != nil {
    86→internal/repository/tags.go-510-		s, _, _ := q.ToSql()
    87→internal/repository/tags.go-511-		cclog.Errorf("Error get tags with %s: %v", s, err)
    88→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-512-		return nil, err
    89→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-513-	}
    90→--
    91→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-539-	}
    92→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-540-
    93→internal/repository/tags.go:541:	rows, err := q.RunWith(r.stmtCache).Query()
    94→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-542-	if err != nil {
    95→internal/repository/tags.go-543-		s, _, _ := q.ToSql()
    96→internal/repository/tags.go-544-		cclog.Errorf("Error get tags with %s: %v", s, err)
    97→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-545-		return nil, err
    98→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-546-	}
    99→--
   100→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-577-	}
   101→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-578-
   102→internal/repository/tags.go:579:	rows, err := q.RunWith(r.stmtCache).Query()
   103→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-580-	if err != nil {
   104→internal/repository/tags.go-581-		s, _, _ := q.ToSql()
   105→internal/repository/tags.go-582-		cclog.Errorf("Error get tags with %s: %v", s, err)
   106→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-583-		return nil, err
   107→/Users/jan/prg/CC/cc-backend/internal/repository/tags.go-584-	}
   108→--
   109→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-104-	}
   110→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-105-
   111→internal/repository/jobFind.go:106:	rows, err := q.RunWith(r.stmtCache).Query()
   112→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-107-	if err != nil {
   113→internal/repository/jobFind.go-108-		cclog.Errorf("Error while running FindAll query for jobID=%d: %v", *jobID, err)
   114→internal/repository/jobFind.go-109-		return nil, fmt.Errorf("failed to execute FindAll query: %w", err)
   115→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-110-	}
   116→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-111-	defer rows.Close()
   117→--
   118→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-137-	}
   119→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-138-
   120→internal/repository/jobFind.go:139:	rows, err := query.RunWith(r.stmtCache).Query()
   121→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-140-	if err != nil {
   122→internal/repository/jobFind.go-141-		cclog.Errorf("Error while running GetJobList query (limit=%d, offset=%d): %v", limit, offset, err)
   123→internal/repository/jobFind.go-142-		return nil, fmt.Errorf("failed to execute GetJobList query: %w", err)
   124→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-143-	}
   125→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-144-	defer rows.Close()
   126→--
   127→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-289-	query = query.Where("EXISTS (SELECT 1 FROM json_each(job.resources) WHERE json_extract(value, '$.hostname') = ?)", hostname)
   128→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-290-
   129→internal/repository/jobFind.go:291:	rows, err := query.RunWith(r.stmtCache).Query()
   130→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-292-	if err != nil {
   131→internal/repository/jobFind.go-293-		cclog.Errorf("Error while running concurrent jobs query: %v", err)
   132→internal/repository/jobFind.go-294-		return nil, fmt.Errorf("failed to execute concurrent jobs query: %w", err)
   133→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-295-	}
   134→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-296-	defer rows.Close()
   135→--
   136→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-317-	}
   137→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-318-
   138→internal/repository/jobFind.go:319:	rows, err = queryRunning.RunWith(r.stmtCache).Query()
   139→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-320-	if err != nil {
   140→internal/repository/jobFind.go-321-		cclog.Errorf("Error while running concurrent running jobs query: %v", err)
   141→internal/repository/jobFind.go-322-		return nil, fmt.Errorf("failed to execute concurrent running jobs query: %w", err)
   142→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-323-	}
   143→/Users/jan/prg/CC/cc-backend/internal/repository/jobFind.go-324-	defer rows.Close()
   144→--
   145→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-276-	}
   146→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-277-
   147→internal/repository/user.go:278:	rows, err := q.RunWith(r.DB).Query()
   148→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-279-	if err != nil {
   149→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-280-		cclog.Warn("Error while querying user list")
   150→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-281-		return nil, err
   151→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-282-	}
   152→/Users/jan/prg/CC/cc-backend/internal/repository/user.go-283-
   153→--
   154→/Users/jan/prg/CC/cc-backend/internal/repository/jobQuery.go-85-	}
   155→/Users/jan/prg/CC/cc-backend/internal/repository/jobQuery.go-86-
   156→internal/repository/jobQuery.go:87:	rows, err := query.RunWith(r.stmtCache).Query()
   157→/Users/jan/prg/CC/cc-backend/internal/repository/jobQuery.go-88-	if err != nil {
   158→internal/repository/jobQuery.go-89-		queryString, queryVars, _ := query.ToSql()
   159→internal/repository/jobQuery.go-90-		return nil, fmt.Errorf("query failed [%s] %v: %w", queryString, queryVars, err)
   160→/Users/jan/prg/CC/cc-backend/internal/repository/jobQuery.go-91-	}
   161→/Users/jan/prg/CC/cc-backend/internal/repository/jobQuery.go-92-	defer rows.Close()
   162→--
   163→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-425-		}
   164→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-426-
   165→internal/repository/job.go:427:		rows, err := selectQuery.RunWith(r.DB).Query()
   166→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-428-		if err == nil {
   167→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-429-			defer rows.Close()
   168→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-430-			for rows.Next() {
   169→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-431-				var id int64
   170→internal/repository/job.go-432-				if err := rows.Scan(&id); err == nil {
   171→--
   172→internal/repository/job.go-603-		rows, err := sq.Select(table+"."+selectColumn).Distinct().From(table).
   173→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-604-			Where(table+"."+whereColumn+" LIKE ?", fmt.Sprint("%", query, "%")).
   174→internal/repository/job.go:605:			RunWith(r.stmtCache).Query()
   175→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-606-		if err != nil && err != sql.ErrNoRows {
   176→internal/repository/job.go-607-			cclog.Errorf("Error while querying FindColumnValues (table=%s, column=%s): %v", table, selectColumn, err)
   177→internal/repository/job.go-608-			return emptyResult, fmt.Errorf("failed to find column values: %w", err)
   178→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-609-		} else if err == nil {
   179→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-610-			defer rows.Close()
   180→--
   181→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-661-		Where("job.job_state = 'running'").
   182→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-662-		Where("job.cluster = ?", cluster).
   183→internal/repository/job.go:663:		RunWith(r.stmtCache).Query()
   184→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-664-	if err != nil {
   185→internal/repository/job.go-665-		cclog.Errorf("Error while running AllocatedNodes query for cluster=%s: %v", cluster, err)
   186→internal/repository/job.go-666-		return nil, fmt.Errorf("failed to query allocated nodes for cluster %s: %w", cluster, err)
   187→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-667-	}
   188→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-668-
   189→--
   190→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-749-		Join("jobtag ON jobtag.job_id = job.id").
   191→internal/repository/job.go-750-		Where(sq.Eq{"jobtag.tag_id": tagID}).Distinct()
   192→internal/repository/job.go:751:	rows, err := query.RunWith(r.stmtCache).Query()
   193→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-752-	if err != nil {
   194→internal/repository/job.go-753-		cclog.Errorf("Error while running FindJobIdsByTag query for tagID=%d: %v", tagID, err)
   195→internal/repository/job.go-754-		return nil, fmt.Errorf("failed to find job IDs by tag %d: %w", tagID, err)
   196→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-755-	}
   197→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-756-	defer rows.Close()
   198→--
   199→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-785-		Where("job.duration > ?", repoConfig.MinRunningJobDuration)
   200→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-786-
   201→internal/repository/job.go:787:	rows, err := query.RunWith(r.stmtCache).Query()
   202→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-788-	if err != nil {
   203→internal/repository/job.go-789-		cclog.Errorf("Error while running FindRunningJobs query for cluster=%s: %v", cluster, err)
   204→internal/repository/job.go-790-		return nil, fmt.Errorf("failed to find running jobs for cluster %s: %w", cluster, err)
   205→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-791-	}
   206→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-792-	defer rows.Close()
   207→--
   208→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-861-	query = query.OrderBy("job.cluster ASC", "job.subcluster ASC", "job.project ASC", "job.start_time ASC")
   209→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-862-
   210→internal/repository/job.go:863:	rows, err := query.RunWith(r.stmtCache).Query()
   211→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-864-	if err != nil {
   212→internal/repository/job.go-865-		cclog.Errorf("Error while running FindJobsBetween query: %v", err)
   213→internal/repository/job.go-866-		return nil, fmt.Errorf("failed to find jobs between %d and %d: %w", startTimeBegin, startTimeEnd, err)
   214→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-867-	}
   215→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-868-	defer rows.Close()
   216→--
   217→internal/repository/job.go-1069-		Where(sq.Eq{"job.job_state": "running"})
   218→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-1070-
   219→internal/repository/job.go:1071:	rows, err := q.RunWith(r.stmtCache).Query()
   220→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-1072-	if err != nil {
   221→internal/repository/job.go-1073-		queryString, queryVars, _ := q.ToSql()
   222→internal/repository/job.go-1074-		return nil, fmt.Errorf("query failed [%s] %v: %w", queryString, queryVars, err)
   223→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-1075-	}
   224→/Users/jan/prg/CC/cc-backend/internal/repository/job.go-1076-	defer rows.Close()
   225→--
   226→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-231-	}
   227→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-232-
   228→internal/repository/stats.go:233:	rows, err := query.RunWith(r.DB).Query()
   229→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-234-	if err != nil {
   230→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-235-		cclog.Warn("Error while querying DB for job statistics")
   231→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-236-		return nil, err
   232→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-237-	}
   233→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-238-
   234→--
   235→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-436-		return nil, err
   236→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-437-	}
   237→internal/repository/stats.go:438:	rows, err := query.RunWith(r.DB).Query()
   238→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-439-	if err != nil {
   239→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-440-		cclog.Warn("Error while querying DB for job statistics")
   240→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-441-		return nil, err
   241→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-442-	}
   242→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-443-
   243→--
   244→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-492-		return nil, err
   245→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-493-	}
   246→internal/repository/stats.go:494:	rows, err := query.RunWith(r.DB).Query()
   247→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-495-	if err != nil {
   248→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-496-		cclog.Warn("Error while querying DB for job statistics")
   249→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-497-		return nil, err
   250→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-498-	}
   251→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-499-
   252→--
   253→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-551-		return nil, err
   254→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-552-	}
   255→internal/repository/stats.go:553:	rows, err := query.RunWith(r.DB).Query()
   256→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-554-	if err != nil {
   257→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-555-		cclog.Warn("Error while querying DB for job statistics")
   258→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-556-		return nil, err
   259→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-557-	}
   260→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-558-
   261→--
   262→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-751-	}
   263→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-752-
   264→internal/repository/stats.go:753:	rows, err := query.GroupBy("value").RunWith(r.DB).Query()
   265→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-754-	if err != nil {
   266→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-755-		cclog.Error("Error while running query")
   267→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-756-		return nil, err
   268→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-757-	}
   269→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-758-
   270→--
   271→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-819-	}
   272→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-820-
   273→internal/repository/stats.go:821:	rows, err := query.GroupBy("value").RunWith(r.DB).Query()
   274→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-822-	if err != nil {
   275→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-823-		cclog.Error("Error while running query")
   276→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-824-		return nil, err
   277→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-825-	}
   278→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-826-
   279→--
   280→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-944-	mainQuery = mainQuery.GroupBy("bin").OrderBy("bin")
   281→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-945-
   282→internal/repository/stats.go:946:	rows, err := mainQuery.RunWith(r.DB).Query()
   283→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-947-	if err != nil {
   284→internal/repository/stats.go-948-		cclog.Errorf("Error while running mainQuery: %s", err)
   285→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-949-		return nil, err
   286→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-950-	}
   287→/Users/jan/prg/CC/cc-backend/internal/repository/stats.go-951-


Now I have the complete picture. Let me write the plan.


Write

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Findings

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.

`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).

## Changes Required

### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 233 | `JobsStatsGrouped` |
| 438 | `JobCountGrouped` |
| 494 | `AddJobCountGrouped` |
| 553 | `AddJobCount` |
| 753 | `jobsStatisticsHistogram` |
| 821 | `jobsDurationStatisticsHistogram` |
| 946 | `jobsMetricStatisticsHistogram` |

Pattern — after each `Query()` error check, add:
```go
rows, err := query.RunWith(r.DB).Query()
if err != nil {
    ...
    return nil, err
}
defer rows.Close()   // <-- ADD THIS
```

### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`

**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.

**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.

### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`

**Line 508** (`GetTags`): add `defer rows.Close()` after error check.
**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.
**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.

### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`

**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.

**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.

**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.

**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.

## Summary of All Edits

| File | Function | Action |
|------|----------|--------|
| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |
| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |
| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |
| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |
| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |
| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |
| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |
| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |
| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |
| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |
| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |
| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


File created successfully at: /Users/jan/.claude/plans/refactored-wishing-journal.md

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Findings

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.

`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).

## Changes Required

### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 233 | `JobsStatsGrouped` |
| 438 | `JobCountGrouped` |
| 494 | `AddJobCountGrouped` |
| 553 | `AddJobCount` |
| 753 | `jobsStatisticsHistogram` |
| 821 | `jobsDurationStatisticsHistogram` |
| 946 | `jobsMetricStatisticsHistogram` |

Pattern — after each `Query()` error check, add:
```go
rows, err := query.RunWith(r.DB).Query()
if err != nil {
    ...
    return nil, err
}
defer rows.Close()   // <-- ADD THIS
```

### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`

**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.

**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.

### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`

**Line 508** (`GetTags`): add `defer rows.Close()` after error check.
**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.
**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.

### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`

**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.

**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.

**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.

**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.

## Summary of All Edits

| File | Function | Action |
|------|----------|--------|
| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |
| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |
| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |
| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |
| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |
| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |
| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |
| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |
| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |
| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |
| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |
| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


ToolSearch

Question: select:ExitPlanMode


Question: select:ExitPlanMode


Found **16 missing `defer rows.Close()` calls** across 3 files (`stats.go`, `tags.go`, `node.go`). The `jobQuery.go` file you had open is actually fine — it already has `defer rows.Close()`.

The leaks are systematic: every query in `stats.go` (7 functions), several tag queries in `tags.go` (5 calls), and 4 node query functions in `node.go` all fail to close their result sets. On success paths, these leak the `sql.Rows` and its underlying database connection/buffers. On large result sets (like a full job table scan sorted by `start_time`), this means significant memory accumulation.

The fix is mechanical: add `defer rows.Close()` after each error check, and in `node.go` replace the inconsistent manual `rows.Close()` calls in error-only paths with proper `defer`.


ExitPlanMode

Prompt: run go build, go test, or go vet

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Findings

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.

`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).

## Changes Required

### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 233 | `JobsStatsGrouped` |
| 438 | `JobCountGrouped` |
| 494 | `AddJobCountGrouped` |
| 553 | `AddJobCount` |
| 753 | `jobsStatisticsHistogram` |
| 821 | `jobsDurationStatisticsHistogram` |
| 946 | `jobsMetricStatisticsHistogram` |

Pattern — after each `Query()` error check, add:
```go
rows, err := query.RunWith(r.DB).Query()
if err != nil {
    ...
    return nil, err
}
defer rows.Close()   // <-- ADD THIS
```

### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`

**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.

**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.

### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`

**Line 508** (`GetTags`): add `defer rows.Close()` after error check.
**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.
**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.

### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`

**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.

**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.

**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.

**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.

## Summary of All Edits

| File | Function | Action |
|------|----------|--------|
| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |
| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |
| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |
| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |
| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |
| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |
| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |
| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |
| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |
| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |
| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |
| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


Error: The user doesn't want to proceed with this tool use. The tool use was rejected (eg. if it was a file edit, the new_string was NOT written to the file). STOP what you are doing and wait for the user to tell you how to proceed.


The plan is ready for your review at the plan file. Let me know if you have any questions or want adjustments — for example, if you'd like me to also check for unbounded queries (no LIMIT on full table scans) as a separate concern, or if the scope looks right as-is.


ToolSearch

Question: select:AskUserQuestion


Question: select:AskUserQuestion


AskUserQuestion

Question: The plan covers 16 missing `defer rows.Close()` calls across stats.go, tags.go, and node.go. Should I also address anything else?

Choices:
Fix the 16 missing defer rows.Close() calls. This directly addresses the memory leak.
Additionally review queries without LIMIT that could cause large allocations on full table scans.
Additionally add missing rows.Err() checks after scan loops (best practice to catch iteration errors).


User has answered your questions: "The plan covers 16 missing `defer rows.Close()` calls across stats.go, tags.go, and node.go. Should I also address anything else?"="Also add rows.Err() checks, Also check unbounded queries, rows.Close() only (Recommended)". You can now continue with the user's answers in mind.

Question: The plan covers 16 missing `defer rows.Close()` calls across stats.go, tags.go, and node.go. Should I also address anything else?

Choices:
Fix the 16 missing defer rows.Close() calls. This directly addresses the memory leak.
Additionally review queries without LIMIT that could cause large allocations on full table scans.
Additionally add missing rows.Err() checks after scan loops (best practice to catch iteration errors).

Also add rows.Err() checks, Also check unbounded queries, rows.Close() only (Recommended)


Let me investigate the missing `rows.Err()` checks and unbounded queries before updating the plan.


internal/repository/jobQuery.go:104:	if err := rows.Err(); err != nil {
internal/repository/tags.go:350:	err = rows.Err()
internal/repository/job.go:1116:	if err := rows.Err(); err != nil {


internal/repository/node.go:360:		query = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)
internal/repository/node.go:409:		query = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)
internal/repository/jobFind.go:45:	q = q.OrderBy("job.id DESC").Limit(1) // always use newest matching job by db id if more than one match
internal/repository/jobFind.go:76:	q = q.OrderBy("job_cache.id DESC").Limit(1) // always use newest matching job by db id if more than one match
internal/repository/jobFind.go:136:		query = query.Limit(uint64(limit)).Offset(uint64(offset))
internal/repository/stats.go:230:		query = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)
internal/repository/jobQuery.go:80:		query = query.Offset((uint64(page.Page) - 1) * limit).Limit(limit)


Now let me check the `CountStates` query more carefully — it looks like it does counting in Go instead of SQL.


   546→func (r *NodeRepository) CountStates(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStates, error) {
   547→	query, qerr := AccessCheck(ctx,
   548→		sq.Select(column).
   549→			From("node").
   550→			Join("node_state ON node_state.node_id = node.id").
   551→			Where(latestStateCondition()))
   552→	if qerr != nil {
   553→		return nil, qerr
   554→	}
   555→
   556→	query = applyNodeFilters(query, filters)
   557→
   558→	rows, err := query.RunWith(r.stmtCache).Query()
   559→	if err != nil {
   560→		queryString, queryVars, _ := query.ToSql()
   561→		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
   562→		return nil, err
   563→	}
   564→
   565→	stateMap := map[string]int{}
   566→	for rows.Next() {
   567→		var state string
   568→		if err := rows.Scan(&state); err != nil {
   569→			rows.Close()
   570→			cclog.Warn("Error while scanning rows (CountStates)")
   571→			return nil, err
   572→		}
   573→
   574→		stateMap[state] += 1
   575→	}
   576→
   577→	nodes := make([]*model.NodeStates, 0)
   578→	for state, counts := range stateMap {
   579→		node := model.NodeStates{State: state, Count: counts}
   580→		nodes = append(nodes, &node)
   581→	}
   582→
   583→	return nodes, nil
   584→}
   585→

func (r *NodeRepository) CountStates(ctx context.Context, filters []*model.NodeFilter, column string) ([]*model.NodeStates, error) {
	query, qerr := AccessCheck(ctx,
		sq.Select(column).
			From("node").
			Join("node_state ON node_state.node_id = node.id").
			Where(latestStateCondition()))
	if qerr != nil {
		return nil, qerr
	}

	query = applyNodeFilters(query, filters)

	rows, err := query.RunWith(r.stmtCache).Query()
	if err != nil {
		queryString, queryVars, _ := query.ToSql()
		cclog.Errorf("Error while running query '%s' %v: %v", queryString, queryVars, err)
		return nil, err
	}

	stateMap := map[string]int{}
	for rows.Next() {
		var state string
		if err := rows.Scan(&state); err != nil {
			rows.Close()
			cclog.Warn("Error while scanning rows (CountStates)")
			return nil, err
		}

		stateMap[state] += 1
	}

	nodes := make([]*model.NodeStates, 0)
	for state, counts := range stateMap {
		node := model.NodeStates{State: state, Count: counts}
		nodes = append(nodes, &node)
	}

	return nodes, nil
}


Good catch — `CountStates` fetches every individual row and counts in Go, when it should use `COUNT(*) ... GROUP BY` in SQL. Now let me update the plan.


     1→# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries
     2→
     3→## Context
     4→
     5→Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).
     6→
     7→## Findings
     8→
     9→**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.
    10→
    11→In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.
    12→
    13→`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).
    14→
    15→## Changes Required
    16→
    17→### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`
    18→
    19→Add `defer rows.Close()` immediately after the `if err != nil` check for each:
    20→
    21→| Line | Function |
    22→|------|----------|
    23→| 233 | `JobsStatsGrouped` |
    24→| 438 | `JobCountGrouped` |
    25→| 494 | `AddJobCountGrouped` |
    26→| 553 | `AddJobCount` |
    27→| 753 | `jobsStatisticsHistogram` |
    28→| 821 | `jobsDurationStatisticsHistogram` |
    29→| 946 | `jobsMetricStatisticsHistogram` |
    30→
    31→Pattern — after each `Query()` error check, add:
    32→```go
    33→rows, err := query.RunWith(r.DB).Query()
    34→if err != nil {
    35→    ...
    36→    return nil, err
    37→}
    38→defer rows.Close()   // <-- ADD THIS
    39→```
    40→
    41→### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`
    42→
    43→**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.
    44→
    45→**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.
    46→
    47→### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`
    48→
    49→**Line 508** (`GetTags`): add `defer rows.Close()` after error check.
    50→**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.
    51→**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.
    52→
    53→### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`
    54→
    55→**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.
    56→
    57→**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.
    58→
    59→**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.
    60→
    61→**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.
    62→
    63→## Summary of All Edits
    64→
    65→| File | Function | Action |
    66→|------|----------|--------|
    67→| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |
    68→| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |
    69→| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |
    70→| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |
    71→| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |
    72→| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |
    73→| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |
    74→| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |
    75→| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |
    76→| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |
    77→| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |
    78→| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |
    79→| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |
    80→| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |
    81→| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |
    82→| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |
    83→
    84→## Verification
    85→
    86→1. `go build ./...` — ensure it compiles
    87→2. `go test ./internal/repository/...` — run repository tests
    88→3. `go vet ./internal/repository/...` — static analysis
    89→


Write

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Part 1: Missing `defer rows.Close()` (16 locations)

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (plus additional in tags/node). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

### 1a. `internal/repository/stats.go` — 7 functions

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 237 | `JobsStatsGrouped` |
| 442 | `JobCountGrouped` |
| 498 | `AddJobCountGrouped` |
| 557 | `AddJobCount` |
| 757 | `jobsStatisticsHistogram` |
| 825 | `jobsDurationStatisticsHistogram` |
| 950 | `jobsMetricStatisticsHistogram` |

### 1b. `internal/repository/tags.go` — 5 locations

| Line | Function | Detail |
|------|----------|--------|
| 284 | `CountTags` | Add `defer xrows.Close()` after Queryx error check |
| 336 | `CountTags` | Add `defer rows.Close()` after Query error check |
| 513 | `GetTags` | Add `defer rows.Close()` |
| 546 | `GetTagsDirect` | Add `defer rows.Close()` |
| 584 | `getArchiveTags` | Add `defer rows.Close()` |

### 1c. `internal/repository/node.go` — 4 functions

Replace manual `rows.Close()` in error-only paths with `defer rows.Close()`:

| Line | Function | Also remove manual close at |
|------|----------|----|
| 368 | `QueryNodes` | L375 |
| 417 | `QueryNodesWithMeta` | L427 |
| 563 | `CountStates` | L569 |
| 625 | `CountStatesTimed` | L633 |

## Part 2: Missing `rows.Err()` Checks

After a `rows.Next()` loop, `rows.Err()` should be checked to detect iteration errors (e.g., connection lost mid-scan). Currently only 3 of ~22 query sites check it.

Add `rows.Err()` check after the scan loop in every function touched by Part 1. Pattern:

```go
for rows.Next() {
    // ... scan ...
}
if err := rows.Err(); err != nil {
    return nil, err
}
```

Functions needing this (same 16 locations as Part 1 — all functions listed above).

## Part 3: Unbounded Query Optimization

### 3a. `CountStates` in `node.go:546` — counting in Go instead of SQL

Currently fetches every individual row (`SELECT column FROM node ...`) and counts in Go with a map. Should use SQL aggregation instead:

```go
// BEFORE: fetches N rows, counts in Go
sq.Select(column).From("node")...

// AFTER: let SQL do the counting
sq.Select(column, "COUNT(*) as count").From("node")...GroupBy(column)
```

This changes the scan from `rows.Scan(&state)` to `rows.Scan(&state, &count)` and eliminates the Go-side counting loop. Reduces rows transferred from N (number of nodes) to ~5 (number of distinct states).

### 3b. `AddJobCount` in `stats.go:541` — uses `.Query()` instead of `.QueryRow()`

`AddJobCount` builds a count query without GROUP BY (returns a single row) but uses `.Query()` + loop instead of `.QueryRow()`. Should be simplified to `QueryRow().Scan()` like `JobsStats` does. This eliminates the rows object entirely.

## Summary of All Edits

| File | Function | Actions |
|------|----------|---------|
| `stats.go` | `JobsStatsGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `JobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCount` | Rewrite to use `QueryRow` instead of `Query` |
| `stats.go` | `jobsStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsDurationStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsMetricStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `CountTags` (xrows) | + `defer xrows.Close()`, + `xrows.Err()` after loop |
| `tags.go` | `CountTags` (rows) | + `defer rows.Close()` (already has `rows.Err()`) |
| `tags.go` | `GetTags` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `GetTagsDirect` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `getArchiveTags` | + `defer rows.Close()`, + `rows.Err()` |
| `node.go` | `QueryNodes` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `QueryNodesWithMeta` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `CountStates` | Rewrite to use SQL `COUNT(*)...GROUP BY`, + `defer rows.Close()`, remove manual close |
| `node.go` | `CountStatesTimed` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


The file /Users/jan/.claude/plans/refactored-wishing-journal.md has been updated successfully.

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Part 1: Missing `defer rows.Close()` (16 locations)

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (plus additional in tags/node). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

### 1a. `internal/repository/stats.go` — 7 functions

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 237 | `JobsStatsGrouped` |
| 442 | `JobCountGrouped` |
| 498 | `AddJobCountGrouped` |
| 557 | `AddJobCount` |
| 757 | `jobsStatisticsHistogram` |
| 825 | `jobsDurationStatisticsHistogram` |
| 950 | `jobsMetricStatisticsHistogram` |

### 1b. `internal/repository/tags.go` — 5 locations

| Line | Function | Detail |
|------|----------|--------|
| 284 | `CountTags` | Add `defer xrows.Close()` after Queryx error check |
| 336 | `CountTags` | Add `defer rows.Close()` after Query error check |
| 513 | `GetTags` | Add `defer rows.Close()` |
| 546 | `GetTagsDirect` | Add `defer rows.Close()` |
| 584 | `getArchiveTags` | Add `defer rows.Close()` |

### 1c. `internal/repository/node.go` — 4 functions

Replace manual `rows.Close()` in error-only paths with `defer rows.Close()`:

| Line | Function | Also remove manual close at |
|------|----------|----|
| 368 | `QueryNodes` | L375 |
| 417 | `QueryNodesWithMeta` | L427 |
| 563 | `CountStates` | L569 |
| 625 | `CountStatesTimed` | L633 |

## Part 2: Missing `rows.Err()` Checks

After a `rows.Next()` loop, `rows.Err()` should be checked to detect iteration errors (e.g., connection lost mid-scan). Currently only 3 of ~22 query sites check it.

Add `rows.Err()` check after the scan loop in every function touched by Part 1. Pattern:

```go
for rows.Next() {
    // ... scan ...
}
if err := rows.Err(); err != nil {
    return nil, err
}
```

Functions needing this (same 16 locations as Part 1 — all functions listed above).

## Part 3: Unbounded Query Optimization

### 3a. `CountStates` in `node.go:546` — counting in Go instead of SQL

Currently fetches every individual row (`SELECT column FROM node ...`) and counts in Go with a map. Should use SQL aggregation instead:

```go
// BEFORE: fetches N rows, counts in Go
sq.Select(column).From("node")...

// AFTER: let SQL do the counting
sq.Select(column, "COUNT(*) as count").From("node")...GroupBy(column)
```

This changes the scan from `rows.Scan(&state)` to `rows.Scan(&state, &count)` and eliminates the Go-side counting loop. Reduces rows transferred from N (number of nodes) to ~5 (number of distinct states).

### 3b. `AddJobCount` in `stats.go:541` — uses `.Query()` instead of `.QueryRow()`

`AddJobCount` builds a count query without GROUP BY (returns a single row) but uses `.Query()` + loop instead of `.QueryRow()`. Should be simplified to `QueryRow().Scan()` like `JobsStats` does. This eliminates the rows object entirely.

## Summary of All Edits

| File | Function | Actions |
|------|----------|---------|
| `stats.go` | `JobsStatsGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `JobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCount` | Rewrite to use `QueryRow` instead of `Query` |
| `stats.go` | `jobsStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsDurationStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsMetricStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `CountTags` (xrows) | + `defer xrows.Close()`, + `xrows.Err()` after loop |
| `tags.go` | `CountTags` (rows) | + `defer rows.Close()` (already has `rows.Err()`) |
| `tags.go` | `GetTags` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `GetTagsDirect` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `getArchiveTags` | + `defer rows.Close()`, + `rows.Err()` |
| `node.go` | `QueryNodes` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `QueryNodesWithMeta` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `CountStates` | Rewrite to use SQL `COUNT(*)...GROUP BY`, + `defer rows.Close()`, remove manual close |
| `node.go` | `CountStatesTimed` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis

+## Part 1: Missing `defer rows.Close()` (16 locations)

-**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

+**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (plus additional in tags/node). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

-In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.

+### 1a. `internal/repository/stats.go` — 7 functions

-`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).

-### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`

-| 821 | `jobsDurationStatisticsHistogram` |

-| 946 | `jobsMetricStatisticsHistogram` |

+| 825 | `jobsDurationStatisticsHistogram` |

+| 950 | `jobsMetricStatisticsHistogram` |

-Pattern — after each `Query()` error check, add:

+### 1b. `internal/repository/tags.go` — 5 locations

+| 284 | `CountTags` | Add `defer xrows.Close()` after Queryx error check |

+| 336 | `CountTags` | Add `defer rows.Close()` after Query error check |

+| 513 | `GetTags` | Add `defer rows.Close()` |

+| 546 | `GetTagsDirect` | Add `defer rows.Close()` |

+| 584 | `getArchiveTags` | Add `defer rows.Close()` |

+### 1c. `internal/repository/node.go` — 4 functions

+Replace manual `rows.Close()` in error-only paths with `defer rows.Close()`:

+| Line | Function | Also remove manual close at |

+After a `rows.Next()` loop, `rows.Err()` should be checked to detect iteration errors (e.g., connection lost mid-scan). Currently only 3 of ~22 query sites check it.

+Add `rows.Err()` check after the scan loop in every function touched by Part 1. Pattern:

-rows, err := query.RunWith(r.DB).Query()

-### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`

+Functions needing this (same 16 locations as Part 1 — all functions listed above).

-**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.

+## Part 3: Unbounded Query Optimization

-**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.

+### 3a. `CountStates` in `node.go:546` — counting in Go instead of SQL

-### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`

+Currently fetches every individual row (`SELECT column FROM node ...`) and counts in Go with a map. Should use SQL aggregation instead:

-**Line 508** (`GetTags`): add `defer rows.Close()` after error check.

-**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.

-**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.

+// BEFORE: fetches N rows, counts in Go

-### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`

+sq.Select(column, "COUNT(*) as count").From("node")...GroupBy(column)

-**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.

+This changes the scan from `rows.Scan(&state)` to `rows.Scan(&state, &count)` and eliminates the Go-side counting loop. Reduces rows transferred from N (number of nodes) to ~5 (number of distinct states).

-**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.

+### 3b. `AddJobCount` in `stats.go:541` — uses `.Query()` instead of `.QueryRow()`

-**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.

+`AddJobCount` builds a count query without GROUP BY (returns a single row) but uses `.Query()` + loop instead of `.QueryRow()`. Should be simplified to `QueryRow().Scan()` like `JobsStats` does. This eliminates the rows object entirely.

-**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.

-| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |

-| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |

-| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |

-| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |

-| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |

-| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |

-| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |

-| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |

-| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |

-| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |

-| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |

-| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |

-| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |

-| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |

-| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |

-| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |

+| `stats.go` | `JobsStatsGrouped` | + `defer rows.Close()`, + `rows.Err()` |

+| `stats.go` | `JobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |

+| `stats.go` | `AddJobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |

+| `stats.go` | `AddJobCount` | Rewrite to use `QueryRow` instead of `Query` |

+| `stats.go` | `jobsStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |

+| `stats.go` | `jobsDurationStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |

+| `stats.go` | `jobsMetricStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |

+| `tags.go` | `CountTags` (xrows) | + `defer xrows.Close()`, + `xrows.Err()` after loop |

+| `tags.go` | `CountTags` (rows) | + `defer rows.Close()` (already has `rows.Err()`) |

+| `tags.go` | `GetTags` | + `defer rows.Close()`, + `rows.Err()` |

+| `tags.go` | `GetTagsDirect` | + `defer rows.Close()`, + `rows.Err()` |

+| `tags.go` | `getArchiveTags` | + `defer rows.Close()`, + `rows.Err()` |

+| `node.go` | `QueryNodes` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

+| `node.go` | `QueryNodesWithMeta` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

+| `node.go` | `CountStates` | Rewrite to use SQL `COUNT(*)...GROUP BY`, + `defer rows.Close()`, remove manual close |

+| `node.go` | `CountStatesTimed` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Findings

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (listed below). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

In `node.go`, `QueryNodes` and `QueryNodesWithMeta` have partial `rows.Close()` only in error paths but **not on the success path** and not via `defer`.

`CountStates` and `CountStatesTimed` in `node.go` also lack `defer rows.Close()` (same partial pattern as above for CountStates, none at all for CountStatesTimed).

## Changes Required

### 1. `internal/repository/stats.go` — 6 functions missing `defer rows.Close()`

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 233 | `JobsStatsGrouped` |
| 438 | `JobCountGrouped` |
| 494 | `AddJobCountGrouped` |
| 553 | `AddJobCount` |
| 753 | `jobsStatisticsHistogram` |
| 821 | `jobsDurationStatisticsHistogram` |
| 946 | `jobsMetricStatisticsHistogram` |

Pattern — after each `Query()` error check, add:
```go
rows, err := query.RunWith(r.DB).Query()
if err != nil {
    ...
    return nil, err
}
defer rows.Close()   // <-- ADD THIS
```

### 2. `internal/repository/tags.go` — 2 leaks in `CountTags()`

**Line 282**: `xrows` from `r.DB.Queryx(...)` — add `defer xrows.Close()` after error check.

**Line 333**: `rows` from `q.RunWith(r.stmtCache).Query()` — add `defer rows.Close()` after error check.

### 3. `internal/repository/tags.go` — 3 leaks in `GetTags`, `GetTagsDirect`, `getArchiveTags`

**Line 508** (`GetTags`): add `defer rows.Close()` after error check.
**Line 541** (`GetTagsDirect`): add `defer rows.Close()` after error check.
**Line 579** (`getArchiveTags`): add `defer rows.Close()` after error check.

### 4. `internal/repository/node.go` — 4 functions missing `defer rows.Close()`

**Line 363** (`QueryNodes`): Replace the manual `rows.Close()` in the error path with `defer rows.Close()` immediately after the error check. Remove the explicit `rows.Close()` call on line 375.

**Line 412** (`QueryNodesWithMeta`): Same pattern — add `defer rows.Close()` after error check, remove explicit `rows.Close()` on line 427.

**Line 558** (`CountStates`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 569.

**Line 620** (`CountStatesTimed`): Add `defer rows.Close()` after error check. Remove explicit `rows.Close()` on line 633.

## Summary of All Edits

| File | Function | Action |
|------|----------|--------|
| `stats.go:237` | `JobsStatsGrouped` | Add `defer rows.Close()` |
| `stats.go:442` | `JobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:498` | `AddJobCountGrouped` | Add `defer rows.Close()` |
| `stats.go:557` | `AddJobCount` | Add `defer rows.Close()` |
| `stats.go:757` | `jobsStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:825` | `jobsDurationStatisticsHistogram` | Add `defer rows.Close()` |
| `stats.go:950` | `jobsMetricStatisticsHistogram` | Add `defer rows.Close()` |
| `tags.go:284` | `CountTags` (xrows) | Add `defer xrows.Close()` |
| `tags.go:336` | `CountTags` (rows) | Add `defer rows.Close()` |
| `tags.go:513` | `GetTags` | Add `defer rows.Close()` |
| `tags.go:546` | `GetTagsDirect` | Add `defer rows.Close()` |
| `tags.go:584` | `getArchiveTags` | Add `defer rows.Close()` |
| `node.go:368` | `QueryNodes` | Add `defer rows.Close()`, remove manual close on L375 |
| `node.go:417` | `QueryNodesWithMeta` | Add `defer rows.Close()`, remove manual close on L427 |
| `node.go:563` | `CountStates` | Add `defer rows.Close()`, remove manual close on L569 |
| `node.go:625` | `CountStatesTimed` | Add `defer rows.Close()`, remove manual close on L633 |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


Plan updated with all three scopes:

1. **16 missing `defer rows.Close()`** — the core memory leak fix
2. **Missing `rows.Err()` checks** — added to all 16 locations for proper error detection after scan loops
3. **Two unbounded query optimizations**:
   - `CountStates` fetches every node row and counts in Go — rewrite to `COUNT(*) ... GROUP BY` in SQL
   - `AddJobCount` uses `.Query()` + loop for a single-row result — simplify to `.QueryRow()`


ExitPlanMode

Prompt: run go build, go test, or go vet

# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Part 1: Missing `defer rows.Close()` (16 locations)

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (plus additional in tags/node). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

### 1a. `internal/repository/stats.go` — 7 functions

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 237 | `JobsStatsGrouped` |
| 442 | `JobCountGrouped` |
| 498 | `AddJobCountGrouped` |
| 557 | `AddJobCount` |
| 757 | `jobsStatisticsHistogram` |
| 825 | `jobsDurationStatisticsHistogram` |
| 950 | `jobsMetricStatisticsHistogram` |

### 1b. `internal/repository/tags.go` — 5 locations

| Line | Function | Detail |
|------|----------|--------|
| 284 | `CountTags` | Add `defer xrows.Close()` after Queryx error check |
| 336 | `CountTags` | Add `defer rows.Close()` after Query error check |
| 513 | `GetTags` | Add `defer rows.Close()` |
| 546 | `GetTagsDirect` | Add `defer rows.Close()` |
| 584 | `getArchiveTags` | Add `defer rows.Close()` |

### 1c. `internal/repository/node.go` — 4 functions

Replace manual `rows.Close()` in error-only paths with `defer rows.Close()`:

| Line | Function | Also remove manual close at |
|------|----------|----|
| 368 | `QueryNodes` | L375 |
| 417 | `QueryNodesWithMeta` | L427 |
| 563 | `CountStates` | L569 |
| 625 | `CountStatesTimed` | L633 |

## Part 2: Missing `rows.Err()` Checks

After a `rows.Next()` loop, `rows.Err()` should be checked to detect iteration errors (e.g., connection lost mid-scan). Currently only 3 of ~22 query sites check it.

Add `rows.Err()` check after the scan loop in every function touched by Part 1. Pattern:

```go
for rows.Next() {
    // ... scan ...
}
if err := rows.Err(); err != nil {
    return nil, err
}
```

Functions needing this (same 16 locations as Part 1 — all functions listed above).

## Part 3: Unbounded Query Optimization

### 3a. `CountStates` in `node.go:546` — counting in Go instead of SQL

Currently fetches every individual row (`SELECT column FROM node ...`) and counts in Go with a map. Should use SQL aggregation instead:

```go
// BEFORE: fetches N rows, counts in Go
sq.Select(column).From("node")...

// AFTER: let SQL do the counting
sq.Select(column, "COUNT(*) as count").From("node")...GroupBy(column)
```

This changes the scan from `rows.Scan(&state)` to `rows.Scan(&state, &count)` and eliminates the Go-side counting loop. Reduces rows transferred from N (number of nodes) to ~5 (number of distinct states).

### 3b. `AddJobCount` in `stats.go:541` — uses `.Query()` instead of `.QueryRow()`

`AddJobCount` builds a count query without GROUP BY (returns a single row) but uses `.Query()` + loop instead of `.QueryRow()`. Should be simplified to `QueryRow().Scan()` like `JobsStats` does. This eliminates the rows object entirely.

## Summary of All Edits

| File | Function | Actions |
|------|----------|---------|
| `stats.go` | `JobsStatsGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `JobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCount` | Rewrite to use `QueryRow` instead of `Query` |
| `stats.go` | `jobsStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsDurationStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsMetricStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `CountTags` (xrows) | + `defer xrows.Close()`, + `xrows.Err()` after loop |
| `tags.go` | `CountTags` (rows) | + `defer rows.Close()` (already has `rows.Err()`) |
| `tags.go` | `GetTags` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `GetTagsDirect` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `getArchiveTags` | + `defer rows.Close()`, + `rows.Err()` |
| `node.go` | `QueryNodes` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `QueryNodesWithMeta` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `CountStates` | Rewrite to use SQL `COUNT(*)...GROUP BY`, + `defer rows.Close()`, remove manual close |
| `node.go` | `CountStatesTimed` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


User has approved your plan. You can now start coding. Start with updating your todo list if applicable

Your plan has been saved to: /Users/jan/.claude/plans/refactored-wishing-journal.md
You can refer back to it if needed during implementation.

## Approved Plan:
# Fix Missing `rows.Close()` Memory Leaks in SQLite3 Queries

## Context

Production memory leaks traced to queries that do full table scans (e.g., job state list sorted by `start_time` on all jobs). The root cause is `sql.Rows` objects not being closed after query execution. In Go's `database/sql`, every `rows` returned by `.Query()` holds a database connection and associated buffers until `rows.Close()` is called. Without `defer rows.Close()`, these leak on every code path (both success and error returns).

## Part 1: Missing `defer rows.Close()` (16 locations)

**22 total `.Query()` calls** across the repository layer. **15 have `defer rows.Close()`**. **7 do not** (plus additional in tags/node). Additionally, 1 `Queryx` call in `tags.go` is also missing close.

### 1a. `internal/repository/stats.go` — 7 functions

Add `defer rows.Close()` immediately after the `if err != nil` check for each:

| Line | Function |
|------|----------|
| 237 | `JobsStatsGrouped` |
| 442 | `JobCountGrouped` |
| 498 | `AddJobCountGrouped` |
| 557 | `AddJobCount` |
| 757 | `jobsStatisticsHistogram` |
| 825 | `jobsDurationStatisticsHistogram` |
| 950 | `jobsMetricStatisticsHistogram` |

### 1b. `internal/repository/tags.go` — 5 locations

| Line | Function | Detail |
|------|----------|--------|
| 284 | `CountTags` | Add `defer xrows.Close()` after Queryx error check |
| 336 | `CountTags` | Add `defer rows.Close()` after Query error check |
| 513 | `GetTags` | Add `defer rows.Close()` |
| 546 | `GetTagsDirect` | Add `defer rows.Close()` |
| 584 | `getArchiveTags` | Add `defer rows.Close()` |

### 1c. `internal/repository/node.go` — 4 functions

Replace manual `rows.Close()` in error-only paths with `defer rows.Close()`:

| Line | Function | Also remove manual close at |
|------|----------|----|
| 368 | `QueryNodes` | L375 |
| 417 | `QueryNodesWithMeta` | L427 |
| 563 | `CountStates` | L569 |
| 625 | `CountStatesTimed` | L633 |

## Part 2: Missing `rows.Err()` Checks

After a `rows.Next()` loop, `rows.Err()` should be checked to detect iteration errors (e.g., connection lost mid-scan). Currently only 3 of ~22 query sites check it.

Add `rows.Err()` check after the scan loop in every function touched by Part 1. Pattern:

```go
for rows.Next() {
    // ... scan ...
}
if err := rows.Err(); err != nil {
    return nil, err
}
```

Functions needing this (same 16 locations as Part 1 — all functions listed above).

## Part 3: Unbounded Query Optimization

### 3a. `CountStates` in `node.go:546` — counting in Go instead of SQL

Currently fetches every individual row (`SELECT column FROM node ...`) and counts in Go with a map. Should use SQL aggregation instead:

```go
// BEFORE: fetches N rows, counts in Go
sq.Select(column).From("node")...

// AFTER: let SQL do the counting
sq.Select(column, "COUNT(*) as count").From("node")...GroupBy(column)
```

This changes the scan from `rows.Scan(&state)` to `rows.Scan(&state, &count)` and eliminates the Go-side counting loop. Reduces rows transferred from N (number of nodes) to ~5 (number of distinct states).

### 3b. `AddJobCount` in `stats.go:541` — uses `.Query()` instead of `.QueryRow()`

`AddJobCount` builds a count query without GROUP BY (returns a single row) but uses `.Query()` + loop instead of `.QueryRow()`. Should be simplified to `QueryRow().Scan()` like `JobsStats` does. This eliminates the rows object entirely.

## Summary of All Edits

| File | Function | Actions |
|------|----------|---------|
| `stats.go` | `JobsStatsGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `JobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCountGrouped` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `AddJobCount` | Rewrite to use `QueryRow` instead of `Query` |
| `stats.go` | `jobsStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsDurationStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `stats.go` | `jobsMetricStatisticsHistogram` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `CountTags` (xrows) | + `defer xrows.Close()`, + `xrows.Err()` after loop |
| `tags.go` | `CountTags` (rows) | + `defer rows.Close()` (already has `rows.Err()`) |
| `tags.go` | `GetTags` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `GetTagsDirect` | + `defer rows.Close()`, + `rows.Err()` |
| `tags.go` | `getArchiveTags` | + `defer rows.Close()`, + `rows.Err()` |
| `node.go` | `QueryNodes` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `QueryNodesWithMeta` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |
| `node.go` | `CountStates` | Rewrite to use SQL `COUNT(*)...GROUP BY`, + `defer rows.Close()`, remove manual close |
| `node.go` | `CountStatesTimed` | + `defer rows.Close()`, remove manual close, + `rows.Err()` |

## Verification

1. `go build ./...` — ensure it compiles
2. `go test ./internal/repository/...` — run repository tests
3. `go vet ./internal/repository/...` — static analysis


Let me start implementing. I'll work through the three files systematically.

### stats.go — 7 fixes + `AddJobCount` rewrite


Edit

	rows, err := query.RunWith(r.DB).Query()
	if err != nil {
		cclog.Warn("Error while querying DB for job statistics")
		return nil, err
	}

	stats := make([]*model.JobsStatistics, 0, 100)

	for rows.Next() {
		var id sql.NullString
		var name sql.NullString
		var jobs, users, walltime, nodes, nodeHours, cores, coreHours, accs, accHours sql.NullInt64
		if err := rows.Scan(&id, &name, &jobs, &users, &walltime, &nodes, &nodeHours, &cores, &coreHours, &accs, &accHours); err != nil {
			cclog.Warnf("Error while scanning rows: %s", err.Error())
			return nil, err
		}

	rows, err := query.RunWith(r.DB).Query()
	if err != nil {
		cclog.Warn("Error while querying DB for job statistics")
		return nil, err
	}
	defer rows.Close()

	stats := make([]*model.JobsStatistics, 0, 100)

	for rows.Next() {
		var id sql.NullString
		var name sql.NullString
		var jobs, users, walltime, nodes, nodeHours, cores, coreHours, accs, accHours sql.NullInt64
		if err := rows.Scan(&id, &name, &jobs, &users, &walltime, &nodes, &nodeHours, &cores, &coreHours, &accs, &accHours); err != nil {
			cclog.Warnf("Error while scanning rows: %s", err.Error())
			return nil, err
		}