- added "BIGSERIAL" support for postgres table with PGBigInteger/autoincrement

1 files changed, 4 insertions, 1 deletions

diff --git a/lib/sqlalchemy/databases/postgres.py b/lib/sqlalchemy/databases/postgres.py
index bb950a90c..9c54901aa 100644
--- a/lib/sqlalchemy/databases/postgres.py
+++ b/lib/sqlalchemy/databases/postgres.py
@@ -500,7 +500,10 @@ class PGSchemaGenerator(ansisql.ANSISchemaGenerator):
     def get_column_specification(self, column, **kwargs):
         colspec = self.preparer.format_column(column)
         if column.primary_key and len(column.foreign_keys)==0 and column.autoincrement and isinstance(column.type, sqltypes.Integer) and not isinstance(column.type, sqltypes.SmallInteger) and (column.default is None or (isinstance(column.default, schema.Sequence) and column.default.optional)):
-            colspec += " SERIAL"
+            if isinstance(column.type, PGBigInteger):
+                colspec += " BIGSERIAL"
+            else:
+                colspec += " SERIAL"
         else:
             colspec += " " + column.type.engine_impl(self.engine).get_col_spec()
             default = self.get_column_default_string(column)