Sha256: 9c3bd84ec4e9290c6c08174f3e8f40fdec75aee95db98f3e8d2f812dd4542071
Contents?: true
Size: 752 Bytes
Versions: 40
Compression:
Stored size: 752 Bytes
Contents
/* Unused and almost unused indexes */
/* Ordered by their size relative to the number of index scans.
Exclude indexes of very small tables (less than 5 pages),
where the planner will almost invariably select a sequential scan,
but may not in the future as the table grows */
SELECT
schemaname || '.' || relname AS table,
indexrelname AS index,
pg_size_pretty(pg_relation_size(i.indexrelid)) AS index_size,
idx_scan as index_scans
FROM pg_stat_user_indexes ui
JOIN pg_index i ON ui.indexrelid = i.indexrelid
WHERE NOT indisunique AND idx_scan < %{max_scans} AND pg_relation_size(relid) > 5 * 8192
AND schemaname = '%{schema}'
ORDER BY pg_relation_size(i.indexrelid) / nullif(idx_scan, 0) DESC NULLS FIRST,
pg_relation_size(i.indexrelid) DESC;
Version data entries
40 entries across 40 versions & 1 rubygems