1 files changed, 19 insertions, 0 deletions
diff --git a/db/post_migrate/20230104224020_drop_vuln_reads_on_default_branch_index.rb b/db/post_migrate/20230104224020_drop_vuln_reads_on_default_branch_index.rb
new file mode 100644
index 00000000000..acac69478a3
--- /dev/null
+++ b/db/post_migrate/20230104224020_drop_vuln_reads_on_default_branch_index.rb
@@ -0,0 +1,19 @@
+# frozen_string_literal: true
+
+class DropVulnReadsOnDefaultBranchIndex < Gitlab::Database::Migration[2.1]
+  INDEX_NAME = 'index_vuln_reads_on_resolved_on_default_branch'
+
+  COLUMNS = %i[project_id state id]
+
+  disable_ddl_transaction!
+
+  def up
+    remove_concurrent_index_by_name :vulnerability_reads, name: INDEX_NAME
+  end
+
+  def down
+    add_concurrent_index :vulnerability_reads, COLUMNS,
+                         where: 'resolved_on_default_branch IS TRUE',
+                         name: INDEX_NAME
+  end
+end