update scripts to use Postgres

kontor-scripts/schema/metadata.py

@@ -1,5 +1,4 @@
-from sqlalchemy import Column, String, ForeignKey, Integer
-from sqlalchemy.dialects.mysql import BIT
+from sqlalchemy import Column, String, ForeignKey, Integer, Boolean
 from sqlalchemy.orm import relationship
 
 from .base import Base, BaseMixin
@@ -28,8 +27,8 @@ class MetaDataColumn(Base, BaseMixin):
     table = relationship("MetaDataTable", back_populates="table_columns")
     column_label = Column(String(255))
     filter_label = Column(String(255))
-    is_shown = Column(BIT(1))
-    show_filter = Column(BIT(1))
+    is_shown = Column(Boolean)
+    show_filter = Column(Boolean)
     ref_column = Column(String, nullable=True)
 
     def __repr__(self):