46 lines
1.2 KiB
Ruby
46 lines
1.2 KiB
Ruby
class CleanupStagesPositionMigration < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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TMP_INDEX_NAME = 'tmp_id_stage_position_partial_null_index'.freeze
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disable_ddl_transaction!
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class Stages < ActiveRecord::Base
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include EachBatch
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self.table_name = 'ci_stages'
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end
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def up
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disable_statement_timeout do
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Gitlab::BackgroundMigration.steal('MigrateStageIndex')
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unless index_exists_by_name?(:ci_stages, TMP_INDEX_NAME)
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add_concurrent_index(:ci_stages, :id, where: 'position IS NULL', name: TMP_INDEX_NAME)
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end
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migratable = <<~SQL
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position IS NULL AND EXISTS (
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SELECT 1 FROM ci_builds WHERE stage_id = ci_stages.id AND stage_idx IS NOT NULL
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)
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SQL
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Stages.where(migratable).each_batch(of: 1000) do |batch|
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batch.pluck(:id).each do |stage|
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Gitlab::BackgroundMigration::MigrateStageIndex.new.perform(stage, stage)
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end
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end
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remove_concurrent_index_by_name(:ci_stages, TMP_INDEX_NAME)
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end
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end
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def down
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if index_exists_by_name?(:ci_stages, TMP_INDEX_NAME)
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disable_statement_timeout do
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remove_concurrent_index_by_name(:ci_stages, TMP_INDEX_NAME)
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end
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end
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end
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end
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