Re: MySQL search query is not executing in Postgres DB
От | Jim Nasby |
---|---|
Тема | Re: MySQL search query is not executing in Postgres DB |
Дата | |
Msg-id | 503D028C.2070409@nasby.net обсуждение исходный текст |
Ответ на | Re: MySQL search query is not executing in Postgres DB ("Greg Sabino Mullane" <greg@turnstep.com>) |
Список | pgsql-hackers |
On 8/27/12 5:19 PM, Greg Sabino Mullane wrote: > Tom Lane replied: >>>> >>>Come on, really? Note that the above example works without casts if >>>> >>>you use int*or* bigint*or* numeric, but not smallint. That could be >>>> >>>fixed by causing sufficiently-small integers to lex as smallints, >>> >>Is there any general interest in adjusting smallint casting? > ... >> >It's conceivable that a change in the lexer behavior combined with a >> >massive reorganization of the integer-related operators would bring us >> >to a nicer place than where we are now. But it'd be a lot of work for >> >dubious reward, and it would almost certainly generate a pile of >> >application compatibility problems. > Okay, but what about a more targeted solution to the original > poster's problem? That seems doable without causing major > breakage elsewhere.... FWIW, this causes problems for me at work as well. For the case of const op const instead of trying to small-cast the 2 constants, would it be possible to large-cast them, perform the operation, and thenre-cast the results of the operation? ISTM that would solve the operator issue (ie, the case of 20000+20000). -- Jim C. Nasby, Database Architect jim@nasby.net 512.569.9461 (cell) http://jim.nasby.net
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