29 lines
1 KiB
Ruby
29 lines
1 KiB
Ruby
# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class RemoveTemporaryCiBuildsIndex < ActiveRecord::Migration[4.2]
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include Gitlab::Database::MigrationHelpers
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# Set this constant to true if this migration requires downtime.
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DOWNTIME = false
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# To use create/remove index concurrently
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disable_ddl_transaction!
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def up
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return unless index_exists?(:ci_builds, :id, name: 'index_for_ci_builds_retried_migration')
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remove_concurrent_index(:ci_builds, :id, name: "index_for_ci_builds_retried_migration")
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end
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def down
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# this was a temporary index for a migration that was never
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# present previously so this probably shouldn't be here but it's
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# easier to test the drop if we have a way to create it.
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add_concurrent_index("ci_builds", ["id"],
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name: "index_for_ci_builds_retried_migration",
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where: "(retried IS NULL)",
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using: :btree)
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end
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end
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