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Issue: PostgreSQL Save (upsert) not supported

Issue: PostgreSQL Save (upsert) not supported: a task in LegoFlow-SWE (Harbor dataset). Current behavior Calling db.Model(table).Data(...).Save() with a PostgreSQL database returns an error: Save operation is not supported by pgsql driver

The task

**Current behavior** Calling `db.Model(table).Data(...).Save()` with a PostgreSQL database returns an error: `Save operation is not supported by pgsql driver`

Part of Lego-X/LegoFlow-SWE.