fix(migrations): remove duplicate indexes (#2501)

Author: waleedlatif1

packages/db/migrations/0127_flimsy_sister_grimm.sql

@@ -1,12 +1,13 @@
 -- Step 1: Add column as NULLABLE first (instant, no lock)
-ALTER TABLE "workflow_execution_logs" ADD COLUMN "workspace_id" text;--> statement-breakpoint
+ALTER TABLE "workflow_execution_logs" ADD COLUMN IF NOT EXISTS "workspace_id" text;--> statement-breakpoint
 
 -- Step 2: Backfill workspace_id from workflow table
 UPDATE "workflow_execution_logs" wel
 SET "workspace_id" = w."workspace_id"
 FROM "workflow" w
 WHERE wel."workflow_id" = w."id"
-  AND w."workspace_id" IS NOT NULL;--> statement-breakpoint
+  AND w."workspace_id" IS NOT NULL
+  AND wel."workspace_id" IS NULL;--> statement-breakpoint
 
 -- Step 3: Delete orphaned execution logs (from workflows without workspaces)
 DELETE FROM "workflow_execution_logs"
@@ -16,11 +17,15 @@ WHERE "workspace_id" IS NULL;--> statement-breakpoint
 ALTER TABLE "workflow_execution_logs" ALTER COLUMN "workspace_id" SET NOT NULL;--> statement-breakpoint
 
 -- Step 5: Add foreign key constraint
-ALTER TABLE "workflow_execution_logs" ADD CONSTRAINT "workflow_execution_logs_workspace_id_workspace_id_fk" FOREIGN KEY ("workspace_id") REFERENCES "public"."workspace"("id") ON DELETE cascade ON UPDATE no action;--> statement-breakpoint
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1 FROM pg_constraint WHERE conname = 'workflow_execution_logs_workspace_id_workspace_id_fk'
+  ) THEN
+    ALTER TABLE "workflow_execution_logs" ADD CONSTRAINT "workflow_execution_logs_workspace_id_workspace_id_fk" 
+    FOREIGN KEY ("workspace_id") REFERENCES "public"."workspace"("id") ON DELETE cascade ON UPDATE no action;
+  END IF;
+END $$;--> statement-breakpoint
 
 -- Step 6: Create indexes
-CREATE INDEX "workflow_execution_logs_workspace_started_at_idx" ON "workflow_execution_logs" USING btree ("workspace_id","started_at");--> statement-breakpoint
-CREATE INDEX "api_key_workspace_type_idx" ON "api_key" USING btree ("workspace_id","type");--> statement-breakpoint
-CREATE INDEX "api_key_user_type_idx" ON "api_key" USING btree ("user_id","type");--> statement-breakpoint
-CREATE INDEX "verification_expires_at_idx" ON "verification" USING btree ("expires_at");--> statement-breakpoint
-CREATE INDEX "workflow_blocks_type_idx" ON "workflow_blocks" USING btree ("type");
+CREATE INDEX IF NOT EXISTS "workflow_execution_logs_workspace_started_at_idx" ON "workflow_execution_logs" USING btree ("workspace_id","started_at");