Merge pull request #9323 from blockscout/vb-set-concurrent-index-creation

Change index creation to concurrent

CHANGELOG.md

@@ -55,6 +55,7 @@
 
 ### Chore
 
+- [#9323](https://github.com/blockscout/blockscout/pull/9323) - Change index creation to concurrent
 - [#9322](https://github.com/blockscout/blockscout/pull/9322) - Create repo setup actions
 - [#9303](https://github.com/blockscout/blockscout/pull/9303) - Add workflow for Shibarium
 - [#9233](https://github.com/blockscout/blockscout/pull/9233) - "cataloged" index on tokens table

apps/explorer/priv/repo/migrations/20240114181404_enhanced_unfetched_token_balances_index.exs

@@ -1,9 +1,11 @@
 defmodule Explorer.Repo.Migrations.EnhancedUnfetchedTokenBalancesIndex do
   use Ecto.Migration
+  @disable_ddl_transaction true
+  @disable_migration_lock true
 
   def up do
     execute("""
-      CREATE INDEX unfetched_address_token_balances_index on address_token_balances(id)
+      CREATE INDEX CONCURRENTLY unfetched_address_token_balances_index on address_token_balances(id)
       WHERE (
           ((address_hash != '\\x0000000000000000000000000000000000000000' AND token_type = 'ERC-721') OR token_type = 'ERC-20' OR token_type = 'ERC-1155') AND (value_fetched_at IS NULL OR value IS NULL)
       );

apps/explorer/priv/repo/migrations/20240123102336_add_tokens_cataloged_index.exs

@@ -1,5 +1,7 @@
 defmodule Explorer.Repo.Migrations.AddTokensCatalogedIndex do
   use Ecto.Migration
+  @disable_ddl_transaction true
+  @disable_migration_lock true
 
   def change do
     create(
@@ -7,7 +9,8 @@ defmodule Explorer.Repo.Migrations.AddTokensCatalogedIndex do
         :tokens,
         ~w(cataloged)a,
         name: :uncataloged_tokens,
-        where: ~s|"cataloged" = false|
+        where: ~s|"cataloged" = false|,
+        concurrently: true
       )
     )
   end