33 lines
1.2 KiB
Ruby
33 lines
1.2 KiB
Ruby
# frozen_string_literal: true
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class BackfillCycleAnalyticsAggregations < Gitlab::Database::Migration[1.0]
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BATCH_SIZE = 50
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def up
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model = define_batchable_model('analytics_cycle_analytics_group_value_streams')
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model.each_batch(of: BATCH_SIZE) do |relation|
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execute <<~SQL
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WITH records_to_be_inserted AS #{Gitlab::Database::AsWithMaterialized.materialized_if_supported} (
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SELECT root_ancestor.id AS group_id
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FROM (#{relation.select(:group_id).to_sql}) as value_streams,
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LATERAL (
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WITH RECURSIVE "base_and_ancestors" AS (
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(SELECT "namespaces"."id", "namespaces"."parent_id" FROM "namespaces" WHERE "namespaces"."id" = value_streams.group_id)
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UNION
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(SELECT "namespaces"."id", "namespaces"."parent_id" FROM "namespaces", "base_and_ancestors" WHERE "namespaces"."id" = "base_and_ancestors"."parent_id")
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)
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SELECT "namespaces"."id" FROM "base_and_ancestors" as "namespaces" WHERE parent_id IS NULL LIMIT 1
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) as root_ancestor
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)
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INSERT INTO "analytics_cycle_analytics_aggregations"
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SELECT * FROM "records_to_be_inserted"
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ON CONFLICT DO NOTHING
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SQL
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end
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end
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def down
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# no-op
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end
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end
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