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Pass collations to functions in FunctionCallInfoData, not FmgrInfo.

Since collation is effectively an argument, not a property of the function,
FmgrInfo is really the wrong place for it; and this becomes critical in
cases where a cached FmgrInfo is used for varying purposes that might need
different collation settings.  Fix by passing it in FunctionCallInfoData
instead.  In particular this allows a clean fix for bug #5970 (record_cmp
not working).  This requires touching a bit more code than the original
method, but nobody ever thought that collations would not be an invasive
patch...
This commit is contained in:
Tom Lane
2011-04-12 19:19:24 -04:00
parent 88543ecfec
commit d64713df7e
49 changed files with 552 additions and 418 deletions

View File

@ -54,7 +54,7 @@ tt_setup_firstcall(FuncCallContext *funcctx, Oid prsid)
st = (TSTokenTypeStorage *) palloc(sizeof(TSTokenTypeStorage));
st->cur = 0;
/* OidFunctionCall0 is absent */
/* lextype takes one dummy argument */
st->list = (LexDescr *) DatumGetPointer(OidFunctionCall1(prs->lextypeOid,
(Datum) 0));
funcctx->user_fctx = (void *) st;