1 files changed, 26 insertions, 0 deletions
diff --git a/db/post_migrate/20210701111909_backfill_issues_upvotes_count.rb b/db/post_migrate/20210701111909_backfill_issues_upvotes_count.rb
new file mode 100644
index 00000000000..0afc0bc1d08
--- /dev/null
+++ b/db/post_migrate/20210701111909_backfill_issues_upvotes_count.rb
@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+class BackfillIssuesUpvotesCount < ActiveRecord::Migration[6.1]
+  include Gitlab::Database::MigrationHelpers
+
+  disable_ddl_transaction!
+
+  MIGRATION = 'BackfillUpvotesCountOnIssues'
+  DELAY_INTERVAL = 2.minutes
+  BATCH_SIZE = 5_000
+
+  def up
+    scope = Issue.joins("INNER JOIN award_emoji e ON e.awardable_id = issues.id AND e.awardable_type = 'Issue' AND e.name = 'thumbsup'")
+
+    queue_background_migration_jobs_by_range_at_intervals(
+      scope,
+      MIGRATION,
+      DELAY_INTERVAL,
+      batch_size: BATCH_SIZE
+    )
+  end
+
+  def down
+    # no-op
+  end
+end