From cf6f15e520a41ea056cde6c4c307697ca5a527b9 Mon Sep 17 00:00:00 2001 From: Hongbo Wu Date: Wed, 10 Jan 2024 17:34:54 +0800 Subject: [PATCH] add index for sorting by word_count --- .../0157.do.library_item_user_id_word_count_idx.sql | 6 ++++++ .../0157.undo.library_item_user_id_word_count_idx.sql | 9 +++++++++ 2 files changed, 15 insertions(+) create mode 100755 packages/db/migrations/0157.do.library_item_user_id_word_count_idx.sql create mode 100755 packages/db/migrations/0157.undo.library_item_user_id_word_count_idx.sql diff --git a/packages/db/migrations/0157.do.library_item_user_id_word_count_idx.sql b/packages/db/migrations/0157.do.library_item_user_id_word_count_idx.sql new file mode 100755 index 000000000..baef3a5db --- /dev/null +++ b/packages/db/migrations/0157.do.library_item_user_id_word_count_idx.sql @@ -0,0 +1,6 @@ +-- Type: DO +-- Name: library_item_user_id_word_count_idx +-- Description: Add library_item_user_id_word_count_idx index on library_item table for user_id and word_count + +-- create index for sorting concurrently to avoid locking +CREATE INDEX CONCURRENTLY IF NOT EXISTS library_item_user_id_word_count_idx ON omnivore.library_item (user_id, word_count DESC NULLS LAST); diff --git a/packages/db/migrations/0157.undo.library_item_user_id_word_count_idx.sql b/packages/db/migrations/0157.undo.library_item_user_id_word_count_idx.sql new file mode 100755 index 000000000..919a60669 --- /dev/null +++ b/packages/db/migrations/0157.undo.library_item_user_id_word_count_idx.sql @@ -0,0 +1,9 @@ +-- Type: UNDO +-- Name: library_item_user_id_word_count_idx +-- Description: Add library_item_user_id_word_count_idx index on library_item table for user_id and word_count + +BEGIN; + +DROP INDEX IF EXISTS library_item_user_id_word_count_idx; + +COMMIT;