A new TPC-DS config tpcds.use-varchar-type will be added to toggle the char columns to varchar, addressing the lack of support for the char data type in Presto - C++. This config allows the toggling of the char to varchar when required, ensuring consistency between Presto - Java and Presto - C++. At the schema level, all the columns which were of char type would be cast to a varchar type.

Expected Behavior or Use Case

Presto Component, Service, or Connector

Presto - TPCDS Connector

Possible Implementation

Example Screenshots (if appropriate):

Context