From 683fe331e4a6d5a9d85f0092237b44b9a5ded79e Mon Sep 17 00:00:00 2001
From: arpitnath <arpitnath42@gmail.com>
Date: Mon, 21 Aug 2023 12:50:42 +0530
Subject: [PATCH] Added indexes to the components table on columns name, type,
 and page_id to optimize query performance.

---
 .../1691006952074-CreateComponentTable.ts        | 16 ++++++++++++++--
 server/src/entities/component.entity.ts          |  3 ++-
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/server/migrations/1691006952074-CreateComponentTable.ts b/server/migrations/1691006952074-CreateComponentTable.ts
index 2016b55eb2..2e23406680 100644
--- a/server/migrations/1691006952074-CreateComponentTable.ts
+++ b/server/migrations/1691006952074-CreateComponentTable.ts
@@ -1,4 +1,4 @@
-import { MigrationInterface, QueryRunner, Table, TableForeignKey } from 'typeorm';
+import { MigrationInterface, QueryRunner, Table, TableForeignKey, TableIndex } from 'typeorm';
 
 export class CreateComponentTable1691006952074 implements MigrationInterface {
   public async up(queryRunner: QueryRunner): Promise<void> {
@@ -46,7 +46,6 @@ export class CreateComponentTable1691006952074 implements MigrationInterface {
       })
     );
 
-    // Add foreign key to relate Component with Page
     await queryRunner.createForeignKey(
       'components',
       new TableForeignKey({
@@ -56,9 +55,22 @@ export class CreateComponentTable1691006952074 implements MigrationInterface {
         onDelete: 'CASCADE',
       })
     );
+
+    await queryRunner.createIndex('components', new TableIndex({ columnNames: ['name'] }));
+    await queryRunner.createIndex('components', new TableIndex({ columnNames: ['type'] }));
+    await queryRunner.createIndex('components', new TableIndex({ columnNames: ['page_id'] }));
   }
 
   public async down(queryRunner: QueryRunner): Promise<void> {
+    // Drop indexes
+    await queryRunner.dropIndex('components', 'IDX_COMPONENT_NAME');
+    await queryRunner.dropIndex('components', 'IDX_COMPONENT_TYPE');
+    await queryRunner.dropIndex('components', 'IDX_COMPONENT_PAGE');
+
+    // Drop foreign key
+    await queryRunner.dropForeignKey('components', 'FK_COMPONENT_PAGE');
+
+    // Drop table
     await queryRunner.dropTable('components');
   }
 }
diff --git a/server/src/entities/component.entity.ts b/server/src/entities/component.entity.ts
index b32d4fae80..2c5127cd72 100644
--- a/server/src/entities/component.entity.ts
+++ b/server/src/entities/component.entity.ts
@@ -1,8 +1,9 @@
-import { Entity, PrimaryGeneratedColumn, Column, ManyToOne, OneToMany, JoinColumn } from 'typeorm';
+import { Entity, PrimaryGeneratedColumn, Column, ManyToOne, OneToMany, JoinColumn, Index } from 'typeorm';
 import { Page } from './page.entity';
 import { Layout } from './layout.entity';
 
 @Entity({ name: 'components' })
+@Index('idx_component_page_id', ['pageId'])
 export class Component {
   @PrimaryGeneratedColumn('uuid')
   id: string;