Class: Gitlab::BackgroundMigration::BackfillPCiPipelineIids

Inherits:
BatchedMigrationJob show all
Defined in:
lib/gitlab/background_migration/backfill_p_ci_pipeline_iids.rb

Constant Summary

Constants inherited from BatchedMigrationJob

Gitlab::BackgroundMigration::BatchedMigrationJob::DEFAULT_FEATURE_CATEGORY, Gitlab::BackgroundMigration::BatchedMigrationJob::MINIMUM_PAUSE_MS

Constants included from Database::DynamicModelHelpers

Database::DynamicModelHelpers::BATCH_SIZE

Instance Method Summary collapse

Methods inherited from BatchedMigrationJob

#batch_metrics, cursor, cursor?, cursor_columns, feature_category, #filter_batch, generic_instance, health_context_tables, #initialize, job_arguments, job_arguments_count, operation_name, scope_to, tables_to_check_for_vacuum

Methods included from Database::DynamicModelHelpers

define_batchable_model, #each_batch, #each_batch_range

Constructor Details

This class inherits a constructor from Gitlab::BackgroundMigration::BatchedMigrationJob

Instance Method Details

#perform ⇒ Object 



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# File 'lib/gitlab/background_migration/backfill_p_ci_pipeline_iids.rb', line 11

def perform
  each_sub_batch do |sub_batch|
    connection.execute(<<~SQL)
      WITH iids AS MATERIALIZED (
        #{sub_batch.select(:project_id, :iid).limit(sub_batch_size).to_sql}
      ),
      filtered_iids AS MATERIALIZED (
        SELECT project_id, iid
        FROM iids
        WHERE iid IS NOT NULL
        LIMIT #{sub_batch_size}
      )
      INSERT INTO p_ci_pipeline_iids (project_id, iid)
      SELECT project_id, iid
      FROM filtered_iids
      ON CONFLICT DO NOTHING
    SQL
  end
end