From 036cd0a48050718449d29a79b93a3f8681334223 Mon Sep 17 00:00:00 2001
From: Matthew Hooker <mwhooker@gmail.com>
Date: Tue, 5 May 2026 17:22:02 -0700
Subject: [PATCH] feat(postgres): enable Enterprise Plus, index advisor, and
 deadlock tuning

Upgrade Cloud SQL instance to Enterprise Plus edition with index advisor
enabled and deadlock detection timeout reduced to 1 second.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 examples/standalone-infra/postgres.tf  | 11 +++++++++++
 examples/standalone-infra/variables.tf |  4 ++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/examples/standalone-infra/postgres.tf b/examples/standalone-infra/postgres.tf
index fa96fc1..900587d 100644
--- a/examples/standalone-infra/postgres.tf
+++ b/examples/standalone-infra/postgres.tf
@@ -10,6 +10,7 @@ resource "google_sql_database_instance" "main" {
 
   settings {
     tier            = var.postgres_tier
+    edition         = "ENTERPRISE_PLUS"
     disk_size       = var.postgres_disk_size_gb
     disk_autoresize = true
 
@@ -25,6 +26,16 @@ resource "google_sql_database_instance" "main" {
       enabled    = true
       start_time = "03:00"
     }
+
+    database_flags {
+      name  = "cloudsql.enable_index_advisor"
+      value = "on"
+    }
+
+    database_flags {
+      name  = "deadlock_timeout"
+      value = "1000"
+    }
   }
 
   deletion_protection = false
diff --git a/examples/standalone-infra/variables.tf b/examples/standalone-infra/variables.tf
index 52ca004..1dc2af6 100644
--- a/examples/standalone-infra/variables.tf
+++ b/examples/standalone-infra/variables.tf
@@ -16,9 +16,9 @@ variable "name" {
 }
 
 variable "postgres_tier" {
-  description = "Cloud SQL machine tier (db-custom-VCPU-RAM_MB)"
+  description = "Cloud SQL machine tier (Enterprise Plus requires db-perf-optimized-N-*)"
   type        = string
-  default     = "db-custom-1-3840"
+  default     = "db-perf-optimized-N-2"
 }
 
 variable "postgres_disk_size_gb" {