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제품 가이드 · 약 5분 읽기
Sort by candidate keys, scan runs, and use filters, lightweight dedup recon before SQL DISTINCT.
게시 2025년 3월 21일 · Table
Without SQL, sort by the natural key (email, order_id, device_id) and look for adjacent identical keys. For composite keys, concatenate in a scratch column or sort by multiple columns.
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