>> I have created a CommitFest entry for this. >> https://commitfest.postgresql.org/33/3034/ > > My 0.02 € > > After giving it some thought, ISTM that there could also be a > performance improvement with copy freeze from older version, so I'd > suggest to add it after 9.3 where the option was added, i.e. 90300.
You misunderstand about COPY FREEZE. Pre-13 COPY FREEZE does not contribute a performance improvement. See discussions for more details. https://www.postgresql.org/message-id/camku%3d1w3osjj2fneelhhnrlxfzitdgp9fphee08nt2fqfmz...@mail.gmail.com https://www.postgresql.org/message-id/flat/CABOikdN-ptGv0mZntrK2Q8OtfUuAjqaYMGmkdU1dCKFtUxVLrg%40mail.gmail.com > Also, I do not think it is worth to fail on a 0 pqserverversion, just > keep the number and consider it a very old version? If pqserverversion fails, then following PQ calls are likely fail too. What's a benefit to continue after pqserverversion returns 0? > Question: should there be a word about copy using the freeze option? > I'd say yes, in the section describing "g". Can you elaborate about "section describing "g"? I am not sure what you mean. Best regards, -- Tatsuo Ishii SRA OSS, Inc. Japan English: http://www.sraoss.co.jp/index_en.php Japanese:http://www.sraoss.co.jp
