Remove DocumentSource Enum from postgres (#1217)

backend/alembic/versions/e50154680a5c_no_source_enum.py

@@ -0,0 +1,38 @@
+"""No Source Enum
+
+Revision ID: e50154680a5c
+Revises: fcd135795f21
+Create Date: 2024-03-14 18:06:08.523106
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+from danswer.configs.constants import DocumentSource
+
+# revision identifiers, used by Alembic.
+revision = "e50154680a5c"
+down_revision = "fcd135795f21"
+branch_labels = None
+depends_on = None
+
+
+def upgrade() -> None:
+    op.alter_column(
+        "search_doc",
+        "source_type",
+        type_=sa.String(length=50),
+        existing_type=sa.Enum(DocumentSource, native_enum=False),
+        existing_nullable=False,
+    )
+    op.execute("DROP TYPE IF EXISTS documentsource")
+
+
+def downgrade() -> None:
+    op.alter_column(
+        "search_doc",
+        "source_type",
+        type_=sa.Enum(DocumentSource, native_enum=False),
+        existing_type=sa.String(length=50),
+        existing_nullable=False,
+    )