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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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15
src/backend/nodes/outfuncs.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.255 2005/06/09 04:18:58 tgl Exp $
* $PostgreSQL: pgsql/src/backend/nodes/outfuncs.c,v 1.256 2005/06/26 22:05:37 tgl Exp $
*
* NOTES
* Every node type that can appear in stored rules' parsetrees *must*
@ -864,6 +864,16 @@ _outCoalesceExpr(StringInfo str, CoalesceExpr *node)
WRITE_NODE_FIELD(args);
}
static void
_outMinMaxExpr(StringInfo str, MinMaxExpr *node)
{
WRITE_NODE_TYPE("MINMAX");
WRITE_OID_FIELD(minmaxtype);
WRITE_ENUM_FIELD(op, MinMaxOp);
WRITE_NODE_FIELD(args);
}
static void
_outNullIfExpr(StringInfo str, NullIfExpr *node)
{
@ -1896,6 +1906,9 @@ _outNode(StringInfo str, void *obj)
case T_CoalesceExpr:
_outCoalesceExpr(str, obj);
break;
case T_MinMaxExpr:
_outMinMaxExpr(str, obj);
break;
case T_NullIfExpr:
_outNullIfExpr(str, obj);
break;