pg_stat_all_tables、pg_class、pg_tables、pg_indexes、pg_attribute
查看表大小
select pt.schemaname||'.'||pt.tablename,pg_relation_filepath(pt.schemaname||'.'||pt.tablename), pg_table_size(pt.schemaname||'.'||pt.tablename), pg_relation_size(pt.schemaname||'.'||pt.tablename), pg_total_relation_size(pt.schemaname||'.'||pt.tablename), pi.schemaname||'.'||pi.indexname,pg_relation_filepath(pi.schemaname||'.'||pi.indexname), pg_relation_size(pi.schemaname||'.'||pi.indexname),--指定的单个索引 pg_indexes_size(pi.schemaname||'.'||pi.tablename) --表上的所有索引 from pg_tables pt left outer join pg_indexes pi on pt.schemaname||'.'||pt.tablename = pi.schemaname||'.'||pi.tablename where 1=1 and pt.schemaname='myschema' and pt.tablename='o_ls_test'