80 lines
3.9 KiB
Ruby
80 lines
3.9 KiB
Ruby
# frozen_string_literal: true
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class FinalizeJobIdConversionToBigintForCiJobArtifacts < ActiveRecord::Migration[6.1]
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include Gitlab::Database::MigrationHelpers
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disable_ddl_transaction!
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TABLE_NAME = 'ci_job_artifacts'
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def up
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ensure_batched_background_migration_is_finished(
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job_class_name: 'CopyColumnUsingBackgroundMigrationJob',
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table_name: TABLE_NAME,
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column_name: 'id',
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job_arguments: [%w[id job_id], %w[id_convert_to_bigint job_id_convert_to_bigint]]
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)
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swap
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end
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def down
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swap
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end
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private
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def swap
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# This is to replace the existing "index_ci_job_artifacts_on_expire_at_and_job_id" btree (expire_at, job_id)
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add_concurrent_index TABLE_NAME, [:expire_at, :job_id_convert_to_bigint], name: 'index_ci_job_artifacts_on_expire_at_and_job_id_bigint'
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# This is to replace the existing "index_ci_job_artifacts_on_job_id_and_file_type" btree (job_id, file_type)
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add_concurrent_index TABLE_NAME, [:job_id_convert_to_bigint, :file_type], name: 'index_ci_job_artifacts_on_job_id_and_file_type_bigint', unique: true
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# # Add a FK on `job_id_convert_to_bigint` to `ci_builds(id)`, the old FK (fk_rails_c5137cb2c1)
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# # is removed below since it won't be dropped automatically.
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fk_ci_builds_job_id = concurrent_foreign_key_name(TABLE_NAME, :job_id, prefix: 'fk_rails_')
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fk_ci_builds_job_id_tmp = "#{fk_ci_builds_job_id}_tmp"
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add_concurrent_foreign_key TABLE_NAME, :ci_builds,
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column: :job_id_convert_to_bigint,
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name: fk_ci_builds_job_id_tmp,
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on_delete: :cascade,
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reverse_lock_order: true
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with_lock_retries(raise_on_exhaustion: true) do
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# We'll need ACCESS EXCLUSIVE lock on the related tables,
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# lets make sure it can be acquired from the start
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execute "LOCK TABLE ci_builds, #{TABLE_NAME} IN ACCESS EXCLUSIVE MODE"
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temp_name = 'job_id_tmp'
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execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(:job_id)} TO #{quote_column_name(temp_name)}"
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execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(:job_id_convert_to_bigint)} TO #{quote_column_name(:job_id)}"
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execute "ALTER TABLE #{quote_table_name(TABLE_NAME)} RENAME COLUMN #{quote_column_name(temp_name)} TO #{quote_column_name(:job_id_convert_to_bigint)}"
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# We need to update the trigger function in order to make PostgreSQL to
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# regenerate the execution plan for it. This is to avoid type mismatch errors like
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# "type of parameter 15 (bigint) does not match that when preparing the plan (integer)"
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function_name = Gitlab::Database::UnidirectionalCopyTrigger.on_table(TABLE_NAME, connection: connection).name([:id, :job_id], [:id_convert_to_bigint, :job_id_convert_to_bigint])
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execute "ALTER FUNCTION #{quote_table_name(function_name)} RESET ALL"
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# Swap defaults
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change_column_default TABLE_NAME, :job_id, nil
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change_column_default TABLE_NAME, :job_id_convert_to_bigint, 0
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# Rename the rest of the indexes (we already hold an exclusive lock, so no need to use DROP INDEX CONCURRENTLY here
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execute 'DROP INDEX index_ci_job_artifacts_on_expire_at_and_job_id'
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rename_index TABLE_NAME, 'index_ci_job_artifacts_on_expire_at_and_job_id_bigint', 'index_ci_job_artifacts_on_expire_at_and_job_id'
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execute 'DROP INDEX index_ci_job_artifacts_on_job_id_and_file_type'
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rename_index TABLE_NAME, 'index_ci_job_artifacts_on_job_id_and_file_type_bigint', 'index_ci_job_artifacts_on_job_id_and_file_type'
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# Drop original FK on the old int4 `job_id` (fk_rails_c5137cb2c1)
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remove_foreign_key TABLE_NAME, name: fk_ci_builds_job_id
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# We swapped the columns but the FK for job_id is still using the temporary name for the job_id_convert_to_bigint column
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# So we have to also swap the FK name now that we dropped the other one with the same
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rename_constraint(TABLE_NAME, fk_ci_builds_job_id_tmp, fk_ci_builds_job_id)
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end
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end
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end
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