Hi Dmitry, There is the TypeCoercion [1] interface that allows you to customize how implicit casts work. I guess you need to create your own implementation, customize the behavior of the binaryComparisonCoercion method (possibly others as well), and pass it to the validator.
Best, Stamatis [1] https://github.com/apache/calcite/blob/1bce280a2957326dc5c249cfd079edfd2c54adf4/core/src/main/java/org/apache/calcite/sql/validate/implicit/TypeCoercion.java On Thu, May 12, 2022 at 4:42 PM Dmitry Sysolyatin <[email protected]> wrote: > Hi! > > I would like to implement implicit cast from string to array as PG does. > For example: "SELECT ARRAY[1,2,3] = '{1,2,3};'" should return true instead > of exception for Postgres dialect > > Is there an easy way to implement implicit cast? >
