26 lines
768 B
Ruby
26 lines
768 B
Ruby
# frozen_string_literal: true
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class RemoveTmpIndexSupportingLeakyRegexCleanup < Gitlab::Database::Migration[2.0]
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INDEX_NAME = "tmp_index_merge_requests_draft_and_status_leaky_regex"
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LEAKY_REGEXP_STR = "^\\[draft\\]|\\(draft\\)|draft:|draft|\\[WIP\\]|WIP:|WIP"
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CORRECTED_REGEXP_STR = "^(\\[draft\\]|\\(draft\\)|draft:|draft|\\[WIP\\]|WIP:|WIP)"
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disable_ddl_transaction!
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def up
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remove_concurrent_index_by_name :merge_requests, INDEX_NAME
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end
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def down
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where_clause = <<~SQL
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draft = true AND
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state_id = 1 AND
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((title)::text ~* '#{LEAKY_REGEXP_STR}'::text) AND ((title)::text !~* '#{CORRECTED_REGEXP_STR}'::text)
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SQL
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add_concurrent_index :merge_requests, :id,
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where: where_clause,
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name: INDEX_NAME
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end
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end
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