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Fix core dump in pg_dump --binary-upgrade on zero-column composite type.

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This reverts nearly all of commit 28f6cab61a
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.
This commit is contained in:
Tom Lane 2014-10-17 12:49:15 -04:00
parent 870a980aaf
commit 31021e7ba3
1 changed files with 2 additions and 7 deletions
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9
src/bin/pg_dump/pg_dump.c
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@ -7309,7 +7309,6 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo)
int ntups;
int i_attname;
int i_atttypdefn;
int i_typrelid;
int i;
/* Set proper schema search path so type references list correctly */
@ -7319,8 +7318,7 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo)
/* We assume here that remoteVersion must be at least 70300 */
appendPQExpBuffer(query, "SELECT a.attname, "
"pg_catalog.format_type(a.atttypid, a.atttypmod) AS atttypdefn, "
"typrelid "
"pg_catalog.format_type(a.atttypid, a.atttypmod) AS atttypdefn "
"FROM pg_catalog.pg_type t, pg_catalog.pg_attribute a "
"WHERE t.oid = '%u'::pg_catalog.oid "
"AND a.attrelid = t.typrelid "
@ -7341,14 +7339,11 @@ dumpCompositeType(Archive *fout, TypeInfo *tyinfo)
i_attname = PQfnumber(res, "attname");
i_atttypdefn = PQfnumber(res, "atttypdefn");
i_typrelid = PQfnumber(res, "typrelid");
if (binary_upgrade)
{
Oid typrelid = atooid(PQgetvalue(res, 0, i_typrelid));
binary_upgrade_set_type_oids_by_type_oid(q, tyinfo->dobj.catId.oid);
binary_upgrade_set_relfilenodes(q, typrelid, false);
binary_upgrade_set_relfilenodes(q, tyinfo->typrelid, false);
}
appendPQExpBuffer(q, "CREATE TYPE %s AS (",