On 2015-05-25 12:25:01 -0400, Melvin Davidson wrote: > I'm not sure why you are using "pg_stat_user_indexes". Because you did. I didn't change that. > My original query below > uses "pg_stat_all_indexes" and the schema names are joined and it does work. I'm not sure what you mean by "original", but this: > SELECT n.nspname as schema, > i.relname as table, > i.indexrelname as index, > i.idx_scan, > i.idx_tup_read, > i.idx_tup_fetch, > pg_size_pretty(pg_relation_size(quote_ident(n.nspname) || '.' || > quote_ident(i.relname))) AS table_size, > pg_size_pretty(pg_relation_size(quote_ident(n.nspname) || '.' || > quote_ident(i.indexrelname))) AS index_size, > pg_get_indexdef(idx.indexrelid) as idx_definition > FROM pg_stat_all_indexes i > JOIN pg_class c ON (c.oid = i.relid) > JOIN pg_namespace n ON (n.oid = c.relnamespace) > JOIN pg_index idx ON (idx.indexrelid = i.indexrelid ) > WHERE i.idx_scan < 200 > AND NOT idx.indisprimary > AND NOT idx.indisunique > ORDER BY 1, 2, 3; is not the query you posted in your original message. Here is what you posted: > On Mon, May 25, 2015 at 10:41 AM, Peter J. Holzer <hjp-pgsql@xxxxxx> wrote: > > On 2015-05-22 09:41:57 -0400, Melvin Davidson wrote: > > I'd like to share those queries with the community, as I know there must > be > > others out there with the same problem. > > > > /* useless_indexes.sql */ > > SELECT > > idstat.schemaname AS schema, > > idstat.relname AS table_name, > > indexrelname AS index_name, > > idstat.idx_scan AS times_used, > > pg_size_pretty(pg_relation_size(quote_ident(idstat.schemaname) || > '.' || > > quote_ident(idstat.relname))) AS table_size, > > pg_size_pretty(pg_relation_size(quote_ident(idstat.schemaname) || > '.' || > > quote_ident(indexrelname))) AS index_size, > > n_tup_upd + n_tup_ins + n_tup_del as num_writes, > > indexdef AS definition > > FROM pg_stat_user_indexes AS idstat > > JOIN pg_indexes ON indexrelname = indexname > > JOIN pg_stat_user_tables AS tabstat ON idstat.relname = tabstat.relname > > WHERE idstat.idx_scan < 200 > > AND indexdef !~* 'unique' > > ORDER BY idstat.schemaname, > > idstat.relname, > > indexrelname; -- _ | Peter J. Holzer | I want to forget all about both belts and |_|_) | | suspenders; instead, I want to buy pants | | | hjp@xxxxxx | that actually fit. __/ | http://www.hjp.at/ | -- http://noncombatant.org/
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