From 212f9089e07e2de4e4cd125e785cfb60f84678b7 Mon Sep 17 00:00:00 2001
From: Graham McIntire <graham@mcintire.me>
Date: Thu, 5 Mar 2026 07:53:50 -0600
Subject: [PATCH] fix: use current_database() in TimescaleDB migration

Previous version used hardcoded 'towerops_dev' which doesn't exist in production.
Now uses current_database() to get the actual database name at runtime.

This fixes the crash: ERROR 3D000 (invalid_catalog_name) database "towerops_dev" does not exist
---
 ...crease_timescaledb_decompression_limit.exs | 21 ++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/priv/repo/migrations/20260304234205_increase_timescaledb_decompression_limit.exs b/priv/repo/migrations/20260304234205_increase_timescaledb_decompression_limit.exs
index 306262f3..fed40e8e 100644
--- a/priv/repo/migrations/20260304234205_increase_timescaledb_decompression_limit.exs
+++ b/priv/repo/migrations/20260304234205_increase_timescaledb_decompression_limit.exs
@@ -5,16 +5,23 @@ defmodule Towerops.Repo.Migrations.IncreaseTimescaledbDecompressionLimit do
     # Increase TimescaleDB tuple decompression limit to unlimited (0)
     # This is needed for large interface sync operations during device discovery
     # that can touch 100k+ compressed tuples in a single transaction
-    execute "ALTER DATABASE #{db_name()} SET timescaledb.max_tuples_decompressed_per_dml_transaction = 0"
+    #
+    # Use current_database() to get the actual database name at runtime
+    execute """
+    DO $$
+    BEGIN
+      EXECUTE 'ALTER DATABASE ' || current_database() || ' SET timescaledb.max_tuples_decompressed_per_dml_transaction = 0';
+    END $$;
+    """
   end
 
   def down do
     # Restore default limit of 100,000
-    execute "ALTER DATABASE #{db_name()} SET timescaledb.max_tuples_decompressed_per_dml_transaction = 100000"
-  end
-
-  defp db_name do
-    config = Application.get_env(:towerops, Towerops.Repo)
-    config[:database] || "towerops_dev"
+    execute """
+    DO $$
+    BEGIN
+      EXECUTE 'ALTER DATABASE ' || current_database() || ' SET timescaledb.max_tuples_decompressed_per_dml_transaction = 100000';
+    END $$;
+    """
   end
 end