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-rw-r--r--migrate/changeset/databases/firebird.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/migrate/changeset/databases/firebird.py b/migrate/changeset/databases/firebird.py
index b296fa5..675666c 100644
--- a/migrate/changeset/databases/firebird.py
+++ b/migrate/changeset/databases/firebird.py
@@ -40,7 +40,12 @@ class FBColumnDropper(ansisql.ANSIColumnDropper):
# will be deleted only when the column its on
# is deleted!
continue
- if cons.contains_column(column) and cons.name:
+
+ if SQLA_06:
+ should_drop = column.name in cons.columns
+ else:
+ should_drop = cons.contains_column(column) and cons.name
+ if should_drop:
self.start_alter_table(column)
self.append("DROP CONSTRAINT ")
self.append(self.preparer.format_constraint(cons))