Re: [HACKERS] type coerce problem with lztext
От | Bruce Momjian |
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Тема | Re: [HACKERS] type coerce problem with lztext |
Дата | |
Msg-id | 200002271906.OAA01236@candle.pha.pa.us обсуждение исходный текст |
Ответ на | Re: [HACKERS] type coerce problem with lztext (Tom Lane <tgl@sss.pgh.pa.us>) |
Ответы |
Re: [HACKERS] type coerce problem with lztext
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Список | pgsql-hackers |
> Yup, TypeCategory was the missing ingredient. Seems to work now. > > > Yes, the 3043 bytes long rule action string got stored in 855 > > bytes in pg_rewrite. That's 71.9% compression rate on this > > attempt! > > Over all the rules in the regression test database, I see: > > regression=# select sum(length(ev_action)),sum(octet_length(ev_action)) from pg > _rewrite; > sum | sum > --------+------- > 105270 | 38091 > (1 row) > > or about 64% compression. Not bad... We clearly needed this for 7.0 because of the larger plans. Good thing Jan had it available, becuase I can imagine some major headaches for people without it. -- Bruce Momjian | http://www.op.net/~candle pgman@candle.pha.pa.us | (610) 853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania19026
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