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by craig_asp
2481 days ago
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I fully agree. With both comments, both yours and branko_d's. The way I read the article, it seems to suggest that by removing rows from the select list would somehow always result in better performance. In my opinion, in the majority of cases there will be no measurable impact on performance. In some specific cases, however, yes, it can make a big difference. In postgres it also seems like selecting all columns explicitly, but out of order can be detrimental to performance: https://www.postgresql.org/message-id/5562FE06.9030903@lab.n... So, it depends :) |
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