phase 8

database/migrations/2026_04_03_175345_add_performance_indexes_to_jobs_table.php

@@ -0,0 +1,60 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::table('jobs', function (Blueprint $table) {
+            // Single column indexes for common filters
+            $table->index('posted_at', 'idx_jobs_posted_at');
+            $table->index('job_type', 'idx_jobs_type');
+            $table->index('experience_level', 'idx_jobs_experience');
+            $table->index('remote_allowed', 'idx_jobs_remote');
+            $table->index('created_at', 'idx_jobs_created_at');
+            $table->index('expires_at', 'idx_jobs_expires_at');
+
+            // Composite indexes for common query patterns
+            $table->index(['job_category_id', 'posted_at'], 'idx_jobs_category_posted');
+            $table->index(['job_type', 'posted_at'], 'idx_jobs_type_posted');
+            $table->index(['remote_allowed', 'posted_at'], 'idx_jobs_remote_posted');
+            $table->index(['job_source_id', 'posted_at'], 'idx_jobs_source_posted');
+            $table->index(['expires_at', 'deleted_at'], 'idx_jobs_expires_deleted');
+
+            // Full-text index for search (if not already exists)
+            DB::statement('ALTER TABLE jobs ADD FULLTEXT idx_jobs_search (title, company, description)');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::table('jobs', function (Blueprint $table) {
+            // Drop single column indexes
+            $table->dropIndex('idx_jobs_posted_at');
+            $table->dropIndex('idx_jobs_type');
+            $table->dropIndex('idx_jobs_experience');
+            $table->dropIndex('idx_jobs_remote');
+            $table->dropIndex('idx_jobs_created_at');
+            $table->dropIndex('idx_jobs_expires_at');
+
+            // Drop composite indexes
+            $table->dropIndex('idx_jobs_category_posted');
+            $table->dropIndex('idx_jobs_type_posted');
+            $table->dropIndex('idx_jobs_remote_posted');
+            $table->dropIndex('idx_jobs_source_posted');
+            $table->dropIndex('idx_jobs_expires_deleted');
+
+            // Drop full-text index
+            DB::statement('ALTER TABLE jobs DROP INDEX idx_jobs_search');
+        });
+    }
+};