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Diffstat (limited to 'lib/sqlalchemy/dialects/sqlite/base.py')
| -rw-r--r-- | lib/sqlalchemy/dialects/sqlite/base.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/sqlite/base.py b/lib/sqlalchemy/dialects/sqlite/base.py index 59d40fef0..66a556ae0 100644 --- a/lib/sqlalchemy/dialects/sqlite/base.py +++ b/lib/sqlalchemy/dialects/sqlite/base.py @@ -1299,6 +1299,11 @@ class SQLiteCompiler(compiler.SQLCompiler): self.process(binary.right, **kw), ) + def visit_empty_set_op_expr(self, type_, expand_op): + # slightly old SQLite versions don't seem to be able to handle + # the empty set impl + return self.visit_empty_set_expr(type_) + def visit_empty_set_expr(self, element_types): return "SELECT %s FROM (SELECT %s) WHERE 1!=1" % ( ", ".join("1" for type_ in element_types or [INTEGER()]), |