v.22.7New Feature
Support isNullable Function for Nullable Argument Check
Support isNullable function. This function checks whether it's argument is nullable and return 1 or 0. Closes #38611. #38841 (lokax).Why it matters
This feature allows users to easily determine whether a column or expression is nullable within their queries, enabling better handling of nullable data types and more dynamic query logic based on nullability.How to use it
Use theisNullable function in your SQL queries by passing a column or expression as the argument. It returns 1 if the input is nullable, and 0 if it is not. For example:SELECT isNullable(column_name) FROM table_name;