1 files changed, 23 insertions, 0 deletions
diff --git a/lib/gitlab/database/postgres_partition.rb b/lib/gitlab/database/postgres_partition.rb
new file mode 100644
index 00000000000..0986372586b
--- /dev/null
+++ b/lib/gitlab/database/postgres_partition.rb
@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+module Gitlab
+  module Database
+    class PostgresPartition < ActiveRecord::Base
+      self.primary_key = :identifier
+
+      belongs_to :postgres_partitioned_table, foreign_key: 'parent_identifier', primary_key: 'identifier'
+
+      scope :by_identifier, ->(identifier) do
+        raise ArgumentError, "Partition name is not fully qualified with a schema: #{identifier}" unless identifier =~ /^\w+\.\w+$/
+
+        find(identifier)
+      end
+
+      scope :for_parent_table, ->(name) { where("parent_identifier = concat(current_schema(), '.', ?)", name).order(:name) }
+
+      def to_s
+        name
+      end
+    end
+  end
+end