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Aggregates can be polymorphic, using polymorphic implementation functions.

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It also works to create a non-polymorphic aggregate from polymorphic
functions, should you want to do that.  Regression test added, docs still
lacking.  By Joe Conway, with some kibitzing from Tom Lane.
This commit is contained in:
Tom Lane
2003-07-01 19:10:53 +00:00
parent 02b5d8e371
commit e3b1b6c0cd
15 changed files with 1300 additions and 83 deletions
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3
src/include/utils/lsyscache.h
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@ -6,7 +6,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: lsyscache.h,v 1.75 2003/06/27 00:33:26 tgl Exp $
* $Id: lsyscache.h,v 1.76 2003/07/01 19:10:53 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -50,6 +50,7 @@ extern RegProcedure get_oprrest(Oid opno);
extern RegProcedure get_oprjoin(Oid opno);
extern char *get_func_name(Oid funcid);
extern Oid get_func_rettype(Oid funcid);
extern Oid get_func_signature(Oid funcid, Oid *argtypes, int *nargs);
extern bool get_func_retset(Oid funcid);
extern bool func_strict(Oid funcid);
extern char func_volatile(Oid funcid);