PostgreSQL – How to Delete Duplicate Rows in PostgreSQL Database
To delete duplicate rows in PostgreSQL using a self-join, you can use the DELETE statement along with a self-join condition. Here’s the syntax: DELETE FROM your_table a USING your_table b WHERE a.column_name = b.column_name AND a.ctid < b.ctid; where your_table is the actual name of your table, and column_name is the column that you want…