Re: Re: Declarative partitioning optimization for largeamount of partitions
От | Teodor Sigaev |
---|---|
Тема | Re: Re: Declarative partitioning optimization for largeamount of partitions |
Дата | |
Msg-id | a81a57ca-bee5-a658-ea04-1c817acd2731@sigaev.ru обсуждение исходный текст |
Ответ на | Re: Re: Declarative partitioning optimization for largeamount of partitions (Teodor Sigaev <teodor@sigaev.ru>) |
Список | pgsql-hackers |
Sorry, 1) and 4) is my fault, comment in hsearch.h: * ... The hash key * is expected to be at the start of the caller's hash entry data structure. Ops, forgot that. Teodor Sigaev wrote: >> things in order I'm attaching the previous patch as well. > > Patches look good, but I have some notices: > > 1 step1 Why do you need TabStatHashEntry at all? TabStatHashEntry.t_id is never > used for read, so entry for hash could be just a pointer to PgStat_TableStatus. > > 2 step1 In pgstat_report_stat() you remove one by one entries from hash and > remove them all. Isn't it better to hash_destroy/hash_create or even let hash > lives in separate memory context and just resets it? > > 3 step1 Again, pgstat_report_stat(), all-zero entries aren't deleted from hash > although they will be free from point of view of pgStatTabList. > > > 4 step 2. The same as 1) about SeenRelsEntry->rel_id but it even isn't > initialized anywhere. > > > -- Teodor Sigaev E-mail: teodor@sigaev.ru WWW: http://www.sigaev.ru/
В списке pgsql-hackers по дате отправления: