It would be possible to integrate parquet data with PartiQL.

Here is an example of integrating PartiQL with CSV files. https://github.com/partiql/partiql-lang-kotlin/blob/master/e.... Integrating with Parquet would of course be more complex then that.

(PartiQL team member) AWS Redshift Spectrum supports PartiQL on parquet since last year. Except that the language had not had a name yet and was referred to as "SQL extensions for nested data.