12 lines
357 B
Ruby
12 lines
357 B
Ruby
# frozen_string_literal: true
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class AddActiveEnrollmentsIndex < ActiveRecord::Migration[5.2]
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tag :postdeploy
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disable_ddl_transaction!
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def change
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add_index :enrollments, [:course_id], where: "workflow_state = 'active'",
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name: "index_enrollments_on_course_when_active", algorithm: :concurrently
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end
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end
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