refactor: add migration for signing_order_request_outbox_submitted_completed_idx (#2942)

Author: clD11

libs/datastore/postgres.go

@@ -41,7 +41,7 @@ var (
 	}
 	dbs = map[string]*sqlx.DB{}
 	// CurrentMigrationVersion holds the default migration version
-	CurrentMigrationVersion = uint(70)
+	CurrentMigrationVersion = uint(71)
 	// MigrationTracks holds the migration version for a given track (eyeshade, promotion, wallet)
 	MigrationTracks = map[string]uint{
 		"eyeshade": 20,

migrations/0071_signing_order_request_outbox_submitted_completed_idx.down.sql

@@ -0,0 +1 @@
+DROP INDEX CONCURRENTLY signing_order_request_outbox_submitted_completed_idx;

migrations/0071_signing_order_request_outbox_submitted_completed_idx.up.sql

@@ -0,0 +1 @@
+CREATE INDEX CONCURRENTLY IF NOT EXISTS signing_order_request_outbox_submitted_completed_idx ON signing_order_request_outbox (submitted_at DESC, completed_at) WHERE completed_at IS NOT NULL AND submitted_at IS NOT NULL;