27 lines
882 B
Ruby
27 lines
882 B
Ruby
# frozen_string_literal: true
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class AddExtraIndexToLabelLinks < ActiveRecord::Migration[6.0]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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INDEX_COVERING_ALL_COLUMNS = 'index_on_label_links_all_columns'
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INDEX_TO_REPLACE = 'index_label_links_on_label_id'
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NEW_INDEX = 'index_label_links_on_label_id_and_target_type'
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disable_ddl_transaction!
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def up
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add_concurrent_index :label_links, [:target_id, :label_id, :target_type], name: INDEX_COVERING_ALL_COLUMNS
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add_concurrent_index :label_links, [:label_id, :target_type], name: NEW_INDEX
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remove_concurrent_index_by_name(:label_links, INDEX_TO_REPLACE)
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end
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def down
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remove_concurrent_index_by_name(:label_links, INDEX_COVERING_ALL_COLUMNS)
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add_concurrent_index(:label_links, :label_id, name: INDEX_TO_REPLACE)
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remove_concurrent_index_by_name(:label_links, NEW_INDEX)
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end
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end
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