From 471998aed3b30541462f3c1defa50b763322f971 Mon Sep 17 00:00:00 2001
From: Hongbo Wu <hongbo@omnivore.app>
Date: Fri, 2 Feb 2024 09:56:45 +0800
Subject: [PATCH] fix: drop db triggers which updates labels and highlights in
 library_item table for locking the table

---
 .../0160.do.drop_slow_db_triggers.sql         | 11 +++++++++
 .../0160.undo.drop_slow_db_triggers.sql       | 23 +++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100755 packages/db/migrations/0160.do.drop_slow_db_triggers.sql
 create mode 100755 packages/db/migrations/0160.undo.drop_slow_db_triggers.sql

diff --git a/packages/db/migrations/0160.do.drop_slow_db_triggers.sql b/packages/db/migrations/0160.do.drop_slow_db_triggers.sql
new file mode 100755
index 000000000..aa62a91dc
--- /dev/null
+++ b/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;
diff --git a/packages/db/migrations/0160.undo.drop_slow_db_triggers.sql b/packages/db/migrations/0160.undo.drop_slow_db_triggers.sql
new file mode 100755
index 000000000..bf24f3a0d
--- /dev/null
+++ b/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;