40 lines
2.3 KiB
Ruby
40 lines
2.3 KiB
Ruby
# frozen_string_literal: true
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class IndexLabelsUsingVarcharPatternOps < Gitlab::Database::Migration[1.0]
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disable_ddl_transaction!
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NEW_TITLE_INDEX_NAME = 'index_labels_on_title_varchar'
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NEW_PROJECT_ID_TITLE_INDEX_NAME = 'index_labels_on_project_id_and_title_varchar_unique'
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NEW_GROUP_ID_TITLE_INDEX_NAME = 'index_labels_on_group_id_and_title_varchar_unique'
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NEW_GROUP_ID_INDEX_NAME = 'index_labels_on_group_id'
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OLD_TITLE_INDEX_NAME = 'index_labels_on_title'
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OLD_PROJECT_ID_TITLE_INDEX_NAME = 'index_labels_on_project_id_and_title_unique'
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OLD_GROUP_ID_TITLE_INDEX_NAME = 'index_labels_on_group_id_and_title_unique'
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OLD_GROUP_ID_PROJECT_ID_TITLE_INDEX_NAME = 'index_labels_on_group_id_and_project_id_and_title'
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def up
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add_concurrent_index :labels, :title, order: { title: :varchar_pattern_ops }, name: NEW_TITLE_INDEX_NAME
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add_concurrent_index :labels, [:project_id, :title], where: "labels.group_id IS NULL", unique: true, order: { title: :varchar_pattern_ops }, name: NEW_PROJECT_ID_TITLE_INDEX_NAME
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add_concurrent_index :labels, [:group_id, :title], where: "labels.project_id IS NULL", unique: true, order: { title: :varchar_pattern_ops }, name: NEW_GROUP_ID_TITLE_INDEX_NAME
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add_concurrent_index :labels, :group_id, name: NEW_GROUP_ID_INDEX_NAME
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remove_concurrent_index_by_name :labels, OLD_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, OLD_PROJECT_ID_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, OLD_GROUP_ID_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, OLD_GROUP_ID_PROJECT_ID_TITLE_INDEX_NAME
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end
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def down
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add_concurrent_index :labels, :title, name: OLD_TITLE_INDEX_NAME
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add_concurrent_index :labels, [:project_id, :title], where: "labels.group_id IS NULL", unique: true, name: OLD_PROJECT_ID_TITLE_INDEX_NAME
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add_concurrent_index :labels, [:group_id, :title], where: "labels.project_id IS NULL", unique: true, name: OLD_GROUP_ID_TITLE_INDEX_NAME
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add_concurrent_index :labels, [:group_id, :project_id, :title], unique: true, name: OLD_GROUP_ID_PROJECT_ID_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, NEW_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, NEW_PROJECT_ID_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, NEW_GROUP_ID_TITLE_INDEX_NAME
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remove_concurrent_index_by_name :labels, NEW_GROUP_ID_INDEX_NAME
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end
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end
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