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Diffstat (limited to 'lib/sqlalchemy/dialects/mysql/base.py')
| -rw-r--r-- | lib/sqlalchemy/dialects/mysql/base.py | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/lib/sqlalchemy/dialects/mysql/base.py b/lib/sqlalchemy/dialects/mysql/base.py index 3aede4a05..2bb5b5beb 100644 --- a/lib/sqlalchemy/dialects/mysql/base.py +++ b/lib/sqlalchemy/dialects/mysql/base.py @@ -1114,6 +1114,9 @@ class MySQLCompiler(compiler.SQLCompiler): fromhints=from_hints, **kw) for t in [from_table] + extra_froms) + def visit_empty_set_expr(self, type_): + return 'SELECT 1 FROM (SELECT 1) as _empty_set WHERE 1!=1' + class MySQLDDLCompiler(compiler.DDLCompiler): def get_column_specification(self, column, **kw): |