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authorTom Lane <tgl@sss.pgh.pa.us>2006-01-17 17:33:37 +0000
committerTom Lane <tgl@sss.pgh.pa.us>2006-01-17 17:33:37 +0000
commit754da88e19e56a6aaba06a57f45fdf1b5ae792a3 (patch)
tree0dcbed1bb16054939b9f794a0637532e71f582c0 /src/backend/parser/parse_coerce.c
parent8372956243a477a67f1d01674c86f0285f05ccbb (diff)
downloadpostgresql-754da88e19e56a6aaba06a57f45fdf1b5ae792a3.tar.gz
postgresql-754da88e19e56a6aaba06a57f45fdf1b5ae792a3.zip
Repair problems with the result of lookup_rowtype_tupdesc() possibly being
discarded by cache flush while still in use. This is a minimal patch that just copies the tupdesc anywhere it could be needed across a flush. Applied to back branches only; Neil Conway is working on a better long-term solution for HEAD.
Diffstat (limited to 'src/backend/parser/parse_coerce.c')
-rw-r--r--src/backend/parser/parse_coerce.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/backend/parser/parse_coerce.c b/src/backend/parser/parse_coerce.c
index 125c218bb55..869e870b66c 100644
--- a/src/backend/parser/parse_coerce.c
+++ b/src/backend/parser/parse_coerce.c
@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
- * $PostgreSQL: pgsql/src/backend/parser/parse_coerce.c,v 2.126.4.1 2006/01/12 22:29:22 neilc Exp $
+ * $PostgreSQL: pgsql/src/backend/parser/parse_coerce.c,v 2.126.4.2 2006/01/17 17:33:34 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -700,7 +700,7 @@ coerce_record_to_complex(ParseState *pstate, Node *node,
format_type_be(RECORDOID),
format_type_be(targetTypeId))));
- tupdesc = lookup_rowtype_tupdesc(targetTypeId, -1);
+ tupdesc = CreateTupleDescCopy(lookup_rowtype_tupdesc(targetTypeId, -1));
newargs = NIL;
ucolno = 1;
arg = list_head(args);
@@ -758,6 +758,8 @@ coerce_record_to_complex(ParseState *pstate, Node *node,
format_type_be(targetTypeId)),
errdetail("Input has too many columns.")));
+ FreeTupleDesc(tupdesc);
+
rowexpr = makeNode(RowExpr);
rowexpr->args = newargs;
rowexpr->row_typeid = targetTypeId;