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hemju/PostgreSQL Index Check

Created June 3, 2014 13:48
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  1. Helmut Michael Juskewycz created this gist Jun 3, 2014.
    23 changes: 23 additions & 0 deletions PostgreSQL Index Check
    View file
    Original file line number Diff line number Diff line change
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    SELECT
    t.tablename,
    indexname,
    c.reltuples AS num_rows,
    pg_size_pretty(pg_relation_size(quote_ident(t.tablename)::text)) AS table_size,
    pg_size_pretty(pg_relation_size(quote_ident(indexrelname)::text)) AS index_size,
    CASE WHEN indisunique THEN 'Y'
    ELSE 'N'
    END AS UNIQUE,
    idx_scan AS number_of_scans,
    idx_tup_read AS tuples_read,
    idx_tup_fetch AS tuples_fetched
    FROM pg_tables t
    LEFT OUTER JOIN pg_class c ON t.tablename=c.relname
    LEFT OUTER JOIN
    ( SELECT c.relname AS ctablename, ipg.relname AS indexname, x.indnatts AS number_of_columns, idx_scan, idx_tup_read, idx_tup_fetch, indexrelname, indisunique FROM pg_index x
    JOIN pg_class c ON c.oid = x.indrelid
    JOIN pg_class ipg ON ipg.oid = x.indexrelid
    JOIN pg_stat_all_indexes psai ON x.indexrelid = psai.indexrelid )
    AS foo
    ON t.tablename = foo.ctablename
    WHERE t.schemaname='public'
    ORDER BY 7,1,2;