Merge "Add migration to add indexes on common search patterns"

subunit2sql/migrations/versions/1ff737bef438_add_indexes_on_common_search_fields.py

@@ -0,0 +1,57 @@
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+"""Add indexes on common search fields
+
+Revision ID: 1ff737bef438
+Revises: 487f279b8c78
+Create Date: 2015-06-25 14:27:10.465845
+
+"""
+
+# revision identifiers, used by Alembic.
+revision = '1ff737bef438'
+down_revision = '487f279b8c78'
+
+from alembic import op
+
+
+def upgrade():
+    # Add indexes to time columns these are often used for searches and filters
+    op.create_index('ix_test_start_time', 'test_runs',
+                    ['start_time'])
+    op.create_index('ix_test_stop_time', 'test_runs',
+                    ['stop_time'])
+    op.create_index('ix_run_at', 'runs', ['run_at'])
+    # Add compound index on metadata tables key, value columns
+    op.create_index('ix_run_key_value', 'run_metadata', ['key', 'value'])
+    op.create_index('ix_test_run_key_value', 'test_run_metadata',
+                    ['key', 'value'])
+    op.create_index('ix_test_key_value', 'test_metadata', ['key', 'value'])
+    # Add compound index on test_id and status and start_time, these are common
+    # graph query patterns
+    op.create_index('ix_test_id_status', 'test_runs', ['test_id', 'status'])
+    op.create_index('ix_test_id_start_time', 'test_runs', ['test_id',
+                                                           'start_time'])
+
+
+def downgrade():
+    op.drop_index('ix_test_start_time', 'test_runs')
+    op.drop_index('ix_test_stop_time', 'test_runs')
+    op.drop_index('ix_run_at', 'runs')
+    op.drop_index('ix_run_key_value', 'run_metadata')
+    op.drop_index('ix_test_run_key_value', 'test_run_metadata')
+    op.drop_index('ix_test_key_value', 'test_metadata')
+    op.drop_index('ix_test_id_status', 'test_runs')
+    op.drop_index('ix_test_id_start_time', 'test_runs')