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Diffstat (limited to 'src/backend/nodes/equalfuncs.c')
-rw-r--r--src/backend/nodes/equalfuncs.c21
1 files changed, 19 insertions, 2 deletions
diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c
index 7f677c0837..8c5d6a0337 100644
--- a/src/backend/nodes/equalfuncs.c
+++ b/src/backend/nodes/equalfuncs.c
@@ -20,7 +20,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
- * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.158 2002/09/02 02:13:01 tgl Exp $
+ * $Header: /cvsroot/pgsql/src/backend/nodes/equalfuncs.c,v 1.159 2002/09/18 21:35:20 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -217,6 +217,15 @@ _equalFunc(Func *a, Func *b)
return false;
if (a->funcretset != b->funcretset)
return false;
+ /*
+ * Special-case COERCE_DONTCARE, so that pathkeys can build coercion
+ * nodes that are equal() to both explicit and implicit coercions.
+ */
+ if (a->funcformat != b->funcformat &&
+ a->funcformat != COERCE_DONTCARE &&
+ b->funcformat != COERCE_DONTCARE)
+ return false;
+
/* Note we do not look at func_fcache; see notes for _equalOper */
return true;
@@ -302,6 +311,14 @@ _equalRelabelType(RelabelType *a, RelabelType *b)
return false;
if (a->resulttypmod != b->resulttypmod)
return false;
+ /*
+ * Special-case COERCE_DONTCARE, so that pathkeys can build coercion
+ * nodes that are equal() to both explicit and implicit coercions.
+ */
+ if (a->relabelformat != b->relabelformat &&
+ a->relabelformat != COERCE_DONTCARE &&
+ b->relabelformat != COERCE_DONTCARE)
+ return false;
return true;
}
@@ -1475,7 +1492,7 @@ _equalCreateCastStmt(CreateCastStmt *a, CreateCastStmt *b)
return false;
if (!equal(a->func, b->func))
return false;
- if (a->implicit != b->implicit)
+ if (a->context != b->context)
return false;
return true;