Hello, I have added a proposal to be able to optionally track uncompressed unencoded column size statistics for variable length columns. Currently, it isn't possible to estimate memory size of variable length columns as `columnSizes` only contains compressed sizes.
I've created an issue (https://github.com/apache/iceberg/issues/10703) and a document ( https://docs.google.com/document/d/189kIZxx_dUloBCDPUz2Fh0BBOZSm2fXHHXWpdpq3DrU), would appreciate any feedback. Thanks, Samrose
