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-rw-r--r--activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb1
1 files changed, 1 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
index ae8ede4b42..e0afa989cd 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb
@@ -327,6 +327,7 @@ module ActiveRecord
AND attr.attrelid = cons.conrelid
AND attr.attnum = cons.conkey[1]
AND cons.contype = 'p'
+ AND dep.classid = 'pg_class'::regclass
AND dep.refobjid = '#{quote_table_name(table)}'::regclass
end_sql