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class FixEmailLogs < ActiveRecord::Migration
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def up
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execute <<-SQL
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UPDATE email_logs
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SET user_id = u.id
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FROM email_logs el
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LEFT JOIN users u ON u.email = el.to_address
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WHERE email_logs.id = el.id
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AND email_logs.user_id IS NULL
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AND NOT email_logs.skipped
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SQL
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end
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def down
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end
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end
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