摘要:
原始sql 执行半小时, 临时表gl_tmp1里大概2万条数据 select distinct ( gl_detail.pk_voucher ) from gl_detail , gl_contrast where gl_detail.pk_detail = gl_contrast.fk_detai 阅读全文
摘要:
select * from pg_indexes where tablename = 'table_name'; 阅读全文