From d98c4dc3b62f4a6f0df4a45a910fe79566dd3aab Mon Sep 17 00:00:00 2001
From: Wen Bo Xie <wenbo.xie3@gmail.com>
Date: Sat, 30 Nov 2024 13:54:48 -0500
Subject: [PATCH] fix: recreate entity index using btree

---
 lib/realtime/tenants/migrations.ex                |  6 ++++--
 ...30184212_recreate_entity_index_using_btree.exs | 15 +++++++++++++++
 2 files changed, 19 insertions(+), 2 deletions(-)
 create mode 100644 lib/realtime/tenants/repo/migrations/20241130184212_recreate_entity_index_using_btree.exs

diff --git a/lib/realtime/tenants/migrations.ex b/lib/realtime/tenants/migrations.ex
index 4a592429d..822c5e1ff 100644
--- a/lib/realtime/tenants/migrations.ex
+++ b/lib/realtime/tenants/migrations.ex
@@ -66,7 +66,8 @@ defmodule Realtime.Tenants.Migrations do
     UuidAutoGeneration,
     MessagesPartitioning,
     MessagesUsingUuid,
-    FixSendFunction
+    FixSendFunction,
+    RecreateEntityIndexUsingBtree
   }
 
   @migrations [
@@ -122,7 +123,8 @@ defmodule Realtime.Tenants.Migrations do
     {20_241_019_105_805, UuidAutoGeneration},
     {20_241_030_150_047, MessagesPartitioning},
     {20_241_108_114_728, MessagesUsingUuid},
-    {20_241_121_104_152, FixSendFunction}
+    {20_241_121_104_152, FixSendFunction},
+    {20_241_130_184_212, RecreateEntityIndexUsingBtree}
   ]
 
   defstruct [:tenant_external_id, :settings]
diff --git a/lib/realtime/tenants/repo/migrations/20241130184212_recreate_entity_index_using_btree.exs b/lib/realtime/tenants/repo/migrations/20241130184212_recreate_entity_index_using_btree.exs
new file mode 100644
index 000000000..78f51e075
--- /dev/null
+++ b/lib/realtime/tenants/repo/migrations/20241130184212_recreate_entity_index_using_btree.exs
@@ -0,0 +1,15 @@
+defmodule Realtime.Tenants.Migrations.RecreateEntityIndexUsingBtree do
+  @moduledoc false
+
+  use Ecto.Migration
+
+  def change do
+    execute(
+      "drop index if exists \"realtime\".\"ix_realtime_subscription_entity\""
+    )
+
+    execute(
+      "create index if not exists ix_realtime_subscription_entity on realtime.subscription using btree (entity)"
+    )
+  end
+end