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Add Oracle-compatible GREATEST and LEAST functions. Pavel Stehule

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This commit is contained in:
Tom Lane
2005-06-26 22:05:42 +00:00
parent d395aecffa
commit 943b396245
17 changed files with 409 additions and 36 deletions
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13
src/include/nodes/execnodes.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2005, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.135 2005/06/20 18:37:02 tgl Exp $
* $PostgreSQL: pgsql/src/include/nodes/execnodes.h,v 1.136 2005/06/26 22:05:41 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -673,6 +673,17 @@ typedef struct CoalesceExprState
List *args; /* the arguments */
} CoalesceExprState;
/* ----------------
* MinMaxExprState node
* ----------------
*/
typedef struct MinMaxExprState
{
ExprState xprstate;
List *args; /* the arguments */
FmgrInfo cfunc; /* lookup info for comparison func */
} MinMaxExprState;
/* ----------------
* CoerceToDomainState node
* ----------------