Re: [HACKERS] pgbench - allow to store select results intovariables
От | Fabien COELHO |
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Тема | Re: [HACKERS] pgbench - allow to store select results intovariables |
Дата | |
Msg-id | alpine.DEB.2.20.1704090514480.26549@lancre обсуждение исходный текст |
Ответ на | Re: [HACKERS] pgbench - allow to store select results intovariables (Fabien COELHO <coelho@cri.ensmp.fr>) |
Ответы |
Re: [HACKERS] pgbench - allow to store select results intovariables
Re: [HACKERS] pgbench - allow to store select results intovariables |
Список | pgsql-hackers |
Hello Tatsuo-san, >>> If I understand correctly, the patch is moved because of the unrelated >>> issue that variables cannot be utf8 in pgbench, and it is a condition >>> to consider this patch that existing pgbench variables (set with \set) >>> can be utf8? >> >> I'm not sure if it is "unrelated" because the new feature relies on >> existing pgbench variable infrastructure. > > Sure. I meant that the constraint on variable names exists before the patch > and the patch is not related to variable names, but the patch is about > variables, obviously. > > As "psql" variables can be utf8 and that the same scanner is used, but the > variables values are not stritcly the same (they are typed in pgbench), I'm > wondering whether the effort should be do share more code/abstraction between > psql & pgbench or just adjust/replicate the needed small functions/code > excerpts. As the variable infrastructures are pretty different between psql & pgbench (typed vs untyped values, sorted array vs linked list data structure, no hook vs 2 hooks, name spaces vs no such thing...), I have chosen the simplest option of just copying the name checking function and extending the lexer to authorize non-ascii letters, so that psql/pgbench would accept the same variable names with the same constraint about encodings. See patch attached & test script. -- Fabien. -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
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