11 2017 档案

Measure the size of a PostgreSQL table row
摘要：Q: I have a PostgreSQL table. select * is very slow whereas select id is nice and quick. I think it may be that the size of the row is very large and 阅读全文

posted @ 2017-11-06 17:02 Still water run deep 阅读(658) 评论(0) 推荐(0)

Redundant data in update statements
摘要：Q: Hibernate generates UPDATE statements, which include all columns, regardless of whether I'm changing the value in that columns, eg: tx.begin(); Ite 阅读全文

posted @ 2017-11-06 16:29 Still water run deep 阅读(244) 评论(0) 推荐(0)

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