28 lines
762 B
Ruby
28 lines
762 B
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 MergeRequestsTargetIdIidStatePartialIndex < 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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INDEX_NAME = 'index_merge_requests_on_target_project_id_and_iid_opened'
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disable_ddl_transaction!
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def up
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# On GitLab.com this index will take up roughly 5 MB of space.
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add_concurrent_index(
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:merge_requests,
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[:target_project_id, :iid],
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where: "state = 'opened'",
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name: INDEX_NAME
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)
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end
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def down
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remove_concurrent_index_by_name(:merge_requests, INDEX_NAME)
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end
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end
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