query postgres delete duplicates
DELETE FROM dups a USING ( SELECT MIN(ctid) as ctid, key FROM dups GROUP BY key HAVING COUNT(*) > 1 ) b WHERE a.key = b.key AND a.ctid <> b.ctid
query postgres delete duplicates
DELETE FROM dups a USING ( SELECT MIN(ctid) as ctid, key FROM dups GROUP BY key HAVING COUNT(*) > 1 ) b WHERE a.key = b.key AND a.ctid <> b.ctid
postgresql remove duplicate rows 2 columns
DELETE FROM sf_table WHERE id IN (SELECT id FROM (SELECT id, ROW_NUMBER() OVER( PARTITION BY tosp, icd ORDER BY id ) AS row_num FROM sf_table ) t WHERE t.row_num > 1 );
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