diff options
Diffstat (limited to 'src/backend/nodes/equalfuncs.c')
| -rw-r--r-- | src/backend/nodes/equalfuncs.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/backend/nodes/equalfuncs.c b/src/backend/nodes/equalfuncs.c index eab30d122c2..19ffbb1be70 100644 --- a/src/backend/nodes/equalfuncs.c +++ b/src/backend/nodes/equalfuncs.c @@ -18,7 +18,7 @@ * Portions Copyright (c) 1994, Regents of the University of California * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.219 2004/05/05 04:48:45 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/nodes/equalfuncs.c,v 1.220 2004/05/10 22:44:44 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -424,6 +424,24 @@ _equalArrayExpr(ArrayExpr *a, ArrayExpr *b) } static bool +_equalRowExpr(RowExpr *a, RowExpr *b) +{ + COMPARE_NODE_FIELD(args); + COMPARE_SCALAR_FIELD(row_typeid); + + /* + * Special-case COERCE_DONTCARE, so that planner can build coercion + * nodes that are equal() to both explicit and implicit coercions. + */ + if (a->row_format != b->row_format && + a->row_format != COERCE_DONTCARE && + b->row_format != COERCE_DONTCARE) + return false; + + return true; +} + +static bool _equalCoalesceExpr(CoalesceExpr *a, CoalesceExpr *b) { COMPARE_SCALAR_FIELD(coalescetype); @@ -1748,6 +1766,9 @@ equal(void *a, void *b) case T_ArrayExpr: retval = _equalArrayExpr(a, b); break; + case T_RowExpr: + retval = _equalRowExpr(a, b); + break; case T_CoalesceExpr: retval = _equalCoalesceExpr(a, b); break; |