first commit

database/migrations/2026_03_21_000005_create_indexes_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('indexes', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('table_id')->constrained('tables')->cascadeOnDelete();
+            $table->string('index_name');
+            $table->json('columns'); // Array of column names
+            $table->boolean('is_unique')->default(false);
+            $table->boolean('is_primary')->default(false);
+            $table->string('index_type')->default('btree');
+            $table->text('definition')->nullable();
+            $table->timestamps();
+
+            $table->unique(['table_id', 'index_name'], 'unique_index');
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('indexes');
+    }
+};