From 787e20bd4a33fd076cad1fd3ec58c644a14d8390 Mon Sep 17 00:00:00 2001 From: Tom Lane Date: Fri, 17 Oct 2014 12:49:09 -0400 Subject: [PATCH] Fix core dump in pg_dump --binary-upgrade on zero-column composite type. This reverts nearly all of commit 28f6cab61ab8958b1a7dfb019724687d92722538 in favor of just using the typrelid we already have in pg_dump's TypeInfo struct for the composite type. As coded, it'd crash if the composite type had no attributes, since then the query would return no rows. Back-patch to all supported versions. It seems to not really be a problem in 9.0 because that version rejects the syntax "create type t as ()", but we might as well keep the logic similar in all affected branches. Report and fix by Rushabh Lathia. --- src/bin/pg_dump/pg_dump.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c index 672d7f6f0e..c39b81f14f 100644 --- a/src/bin/pg_dump/pg_dump.c +++ b/src/bin/pg_dump/pg_dump.c @@ -8326,7 +8326,6 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo) int i_attalign; int i_attisdropped; int i_attcollation; - int i_typrelid; int i; int actual_atts; @@ -8347,8 +8346,7 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo) "pg_catalog.format_type(a.atttypid, a.atttypmod) AS atttypdefn, " "a.attlen, a.attalign, a.attisdropped, " "CASE WHEN a.attcollation <> at.typcollation " - "THEN a.attcollation ELSE 0 END AS attcollation, " - "ct.typrelid " + "THEN a.attcollation ELSE 0 END AS attcollation " "FROM pg_catalog.pg_type ct " "JOIN pg_catalog.pg_attribute a ON a.attrelid = ct.typrelid " "LEFT JOIN pg_catalog.pg_type at ON at.oid = a.atttypid " @@ -8366,8 +8364,7 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo) appendPQExpBuffer(query, "SELECT a.attname, " "pg_catalog.format_type(a.atttypid, a.atttypmod) AS atttypdefn, " "a.attlen, a.attalign, a.attisdropped, " - "0 AS attcollation, " - "ct.typrelid " + "0 AS attcollation " "FROM pg_catalog.pg_type ct, pg_catalog.pg_attribute a " "WHERE ct.oid = '%u'::pg_catalog.oid " "AND a.attrelid = ct.typrelid " @@ -8385,15 +8382,12 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo) i_attalign = PQfnumber(res, "attalign"); i_attisdropped = PQfnumber(res, "attisdropped"); i_attcollation = PQfnumber(res, "attcollation"); - i_typrelid = PQfnumber(res, "typrelid"); if (binary_upgrade) { - Oid typrelid = atooid(PQgetvalue(res, 0, i_typrelid)); - binary_upgrade_set_type_oids_by_type_oid(fout, q, tyinfo->dobj.catId.oid); - binary_upgrade_set_pg_class_oids(fout, q, typrelid, false); + binary_upgrade_set_pg_class_oids(fout, q, tyinfo->typrelid, false); } qtypname = pg_strdup(fmtId(tyinfo->dobj.name)); -- 2.40.0