diff options
Diffstat (limited to 'lib/gitlab/database/batch_count.rb')
| -rw-r--r-- | lib/gitlab/database/batch_count.rb | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/gitlab/database/batch_count.rb b/lib/gitlab/database/batch_count.rb index 49f56b5be97..92a41bb36ee 100644 --- a/lib/gitlab/database/batch_count.rb +++ b/lib/gitlab/database/batch_count.rb @@ -1,7 +1,11 @@ # frozen_string_literal: true # For large tables, PostgreSQL can take a long time to count rows due to MVCC. -# Implements a distinct and ordinary batch counter +# Implements: +# - distinct batch counter +# - ordinary batch counter +# - sum batch counter +# - average batch counter # Needs indexes on the column below to calculate max, min and range queries # For larger tables just set use higher batch_size with index optimization # @@ -22,6 +26,8 @@ # batch_distinct_count(Project.group(:visibility_level), :creator_id) # batch_sum(User, :sign_in_count) # batch_sum(Issue.group(:state_id), :weight)) +# batch_average(Ci::Pipeline, :duration) +# batch_average(MergeTrain.group(:status), :duration) module Gitlab module Database module BatchCount @@ -37,6 +43,10 @@ module Gitlab BatchCounter.new(relation, column: nil, operation: :sum, operation_args: [column]).count(batch_size: batch_size, start: start, finish: finish) end + def batch_average(relation, column, batch_size: nil, start: nil, finish: nil) + BatchCounter.new(relation, column: nil, operation: :average, operation_args: [column]).count(batch_size: batch_size, start: start, finish: finish) + end + class << self include BatchCount end |