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Channels: backfill utm_medium based on click_param_id (#4833)
* Backfill utm_medium Follow-up to https://github.com/plausible/analytics/pull/4817 * Update backfill
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@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
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### Added
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### Added
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- Dashboard shows comparisons for all reports
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- Dashboard shows comparisons for all reports
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- UTM Medium report and API shows (gclid) and (msclkid) for paid searches when no explicit utm medium present.
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### Removed
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### Removed
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### Changed
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### Changed
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@ -0,0 +1,27 @@
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defmodule Plausible.IngestRepo.Migrations.BackfillUtmMediumClickIdParam do
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@moduledoc """
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Backfills utm_medium based on referrer_source and click_id_param
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"""
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use Ecto.Migration
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def up do
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execute(fn -> repo().query!(update_query("events_v2")) end)
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execute(fn -> repo().query!(update_query("sessions_v2")) end)
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end
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def down do
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raise "irreversible"
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end
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defp update_query(table) do
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"""
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ALTER TABLE #{table}
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UPDATE utm_medium = multiIf(
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referrer_source = 'Google' AND click_id_param = 'gclid', '(gclid)',
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referrer_source = 'Bing' AND click_id_param = 'msclkid', '(msclkid)',
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utm_medium
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)
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WHERE empty(utm_medium) AND NOT empty(click_id_param)
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"""
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end
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end
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