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Implement max() and min() aggregates for array types. Patch from Koju

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Iijima, reviewed by Neil Conway. Catalog version number bumped,
regression tests updated.
This commit is contained in:
Neil Conway
2005-02-28 03:45:24 +00:00
parent 517872c566
commit 484f0464ff
8 changed files with 118 additions and 9 deletions
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4
src/include/utils/array.h
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@ -10,7 +10,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/array.h,v 1.51 2004/12/31 22:03:45 pgsql Exp $
* $PostgreSQL: pgsql/src/include/utils/array.h,v 1.52 2005/02/28 03:45:23 neilc Exp $
*
*-------------------------------------------------------------------------
*/
@ -129,6 +129,8 @@ extern Datum array_upper(PG_FUNCTION_ARGS);
extern Datum array_type_coerce(PG_FUNCTION_ARGS);
extern Datum array_type_length_coerce(PG_FUNCTION_ARGS);
extern Datum array_length_coerce(PG_FUNCTION_ARGS);
extern Datum array_larger(PG_FUNCTION_ARGS);
extern Datum array_smaller(PG_FUNCTION_ARGS);
extern Datum array_ref(ArrayType *array, int nSubscripts, int *indx,
int arraylen, int elmlen, bool elmbyval, char elmalign,