Merge pull request #3488 from omnivore-app/drop-db-triggers

fix: drop db triggers which updates labels and highlights in library_item table for locking the table

packages/db/migrations/0160.do.drop_slow_db_triggers.sql

@@ -0,0 +1,11 @@
+-- Type: DO
+-- Name: drop_slow_db_triggers
+-- Description: Drop some db triggers which are slow and have cascading effect
+
+BEGIN;
+
+DROP TRIGGER IF EXISTS library_item_labels_update ON omnivore.entity_labels;
+DROP TRIGGER IF EXISTS library_item_highlight_annotations_update ON omnivore.highlight;
+DROP TRIGGER IF EXISTS label_names_update ON omnivore.labels;
+
+COMMIT;

packages/db/migrations/0160.undo.drop_slow_db_triggers.sql

@@ -0,0 +1,23 @@
+-- Type: UNDO
+-- Name: drop_slow_db_triggers
+-- Description: Drop some db triggers which are slow and have cascading effect
+
+BEGIN;
+
+CREATE TRIGGER label_names_update
+AFTER UPDATE ON omnivore.labels
+FOR EACH ROW
+WHEN (OLD.name <> NEW.name)
+EXECUTE FUNCTION update_label_names();
+
+CREATE TRIGGER library_item_highlight_annotations_update
+AFTER INSERT OR UPDATE OR DELETE ON omnivore.highlight
+FOR EACH ROW
+EXECUTE FUNCTION update_library_item_highlight_annotations();
+
+CREATE TRIGGER library_item_labels_update
+AFTER INSERT OR UPDATE OR DELETE ON omnivore.entity_labels
+FOR EACH ROW
+EXECUTE FUNCTION update_library_item_labels();
+
+COMMIT;