diff options
Diffstat (limited to 'src/include/nodes/primnodes.h')
| -rw-r--r-- | src/include/nodes/primnodes.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/include/nodes/primnodes.h b/src/include/nodes/primnodes.h index be917c4f260..b8a358d6147 100644 --- a/src/include/nodes/primnodes.h +++ b/src/include/nodes/primnodes.h @@ -10,7 +10,7 @@ * Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group * Portions Copyright (c) 1994, Regents of the University of California * - * $Id: primnodes.h,v 1.79 2003/02/09 00:30:40 tgl Exp $ + * $Id: primnodes.h,v 1.80 2003/02/16 02:30:39 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -537,6 +537,24 @@ typedef struct CaseWhen Expr *result; /* substitution result */ } CaseWhen; +/* + * CoalesceExpr - a COALESCE expression + */ +typedef struct CoalesceExpr +{ + Expr xpr; + Oid coalescetype; /* type of expression result */ + List *args; /* the arguments */ +} CoalesceExpr; + +/* + * NullIfExpr - a NULLIF expression + * + * Like DistinctExpr, this is represented the same as an OpExpr referencing + * the "=" operator for x and y. + */ +typedef OpExpr NullIfExpr; + /* ---------------- * NullTest * |