4.21.3

app/migrations/versions/2021_082012_424808e1fe49_.py

@@ -0,0 +1,39 @@
+"""empty message
+
+Revision ID: 424808e1fe49
+Revises: d4392342465f
+Create Date: 2021-08-20 12:11:57.901994
+
+"""
+import sqlalchemy_utils
+from alembic import op
+import sqlalchemy as sa
+from psycopg2 import errors
+from psycopg2.errorcodes import DUPLICATE_OBJECT
+
+# revision identifiers, used by Alembic.
+revision = '424808e1fe49'
+down_revision = 'd4392342465f'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    try:
+        op.execute('CREATE EXTENSION pg_trgm')
+    # thanks to https://stackoverflow.com/a/58743364/1428034 !
+    except sa.exc.ProgrammingError as e:
+        if isinstance(e.orig, errors.lookup(DUPLICATE_OBJECT)):
+            print(">>> pg_trgm already loaded, ignore")
+            op.execute("Rollback")
+
+    op.create_index('note_pg_trgm_index', 'alias', ['note'], unique=False, postgresql_ops={'note': 'gin_trgm_ops'}, postgresql_using='gin')
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index('note_pg_trgm_index', table_name='alias')
+    op.execute('DROP EXTENSION pg_trgm')
+    # ### end Alembic commands ###