30 lines
1.1 KiB
Ruby
30 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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class AddTemporaryIndexForNotesWithMentions < ActiveRecord::Migration[5.2]
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include Gitlab::Database::MigrationHelpers
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disable_ddl_transaction!
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INDEX_CONDITION = "note LIKE '%@%'::text"
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INDEX_NAME = 'note_mentions_temp_index'
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EPIC_MENTIONS_INDEX_NAME = 'epic_mentions_temp_index'
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DESIGN_MENTIONS_INDEX_NAME = 'design_mentions_temp_index'
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def up
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# create temporary index for notes with mentions, may take well over 1h
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add_concurrent_index(:notes, [:id, :noteable_type], where: INDEX_CONDITION, name: INDEX_NAME)
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# cleanup previous temporary indexes, as we'll be usig the single one
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remove_concurrent_index(:notes, :id, name: EPIC_MENTIONS_INDEX_NAME)
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remove_concurrent_index(:notes, :id, name: DESIGN_MENTIONS_INDEX_NAME)
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end
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def down
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remove_concurrent_index(:notes, :id, name: INDEX_NAME)
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add_concurrent_index(:notes, :id, where: "#{INDEX_CONDITION} AND noteable_type='Epic'", name: EPIC_MENTIONS_INDEX_NAME)
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add_concurrent_index(:notes, :id, where: "#{INDEX_CONDITION} AND noteable_type='DesignManagement::Design'", name: DESIGN_MENTIONS_INDEX_NAME)
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end
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end
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