added migration SQL schema for postgres

diff --git a/modules/gpgsqlbackend/3.4.0_to_4.1.0_schema.pgsql.sql b/modules/gpgsqlbackend/3.4.0_to_4.1.0_schema.pgsql.sql
new file mode 100644 (file)
index 0000000..6c4f660
--- /dev/null
+++ b/modules/gpgsqlbackend/3.4.0_to_4.1.0_schema.pgsql.sql
@@ -0,0 +1 @@
+ALTER TABLE records ALTER id TYPE BIGINT;