1 files changed, 23 insertions, 0 deletions
diff --git a/db/migrate/20180308052825_add_section_name_id_index_on_ci_build_trace_sections.rb b/db/migrate/20180308052825_add_section_name_id_index_on_ci_build_trace_sections.rb
new file mode 100644
index 00000000000..b616cc2fd30
--- /dev/null
+++ b/db/migrate/20180308052825_add_section_name_id_index_on_ci_build_trace_sections.rb
@@ -0,0 +1,23 @@
+class AddSectionNameIdIndexOnCiBuildTraceSections < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+  INDEX_NAME = 'index_ci_build_trace_sections_on_section_name_id'
+
+  disable_ddl_transaction!
+
+  def up
+    # MySQL may already have this as a foreign key
+    unless index_exists?(:ci_build_trace_sections, :section_name_id, name: INDEX_NAME)
+      add_concurrent_index :ci_build_trace_sections, :section_name_id, name: INDEX_NAME
+    end
+  end
+
+  def down
+    # We cannot remove index for MySQL because it's needed for foreign key
+    if Gitlab::Database.postgresql?
+      remove_concurrent_index :ci_build_trace_sections, :section_name_id, name: INDEX_NAME
+    end
+  end
+end