MyBatis The result set must contain headers

MyBatis version

3.5.5

Database vendor and version

5.7.42

Test case or example project

Steps to reproduce

When using mybatis to query, use map to receive the result set. The result data queried out is null for each field.

Expected result

Return a null record with table header in one row

Actual result

list.size()=1, value=null

Comment From: scf18857887860

callSettersOnNulls I found that this parameter only takes effect when at least one row of data is returned. Is there another parameter that can return my table header name when all my data is null?

Comment From: harawata

If I understand you correctly, you need to enable both callSettersOnNulls and returnInstanceForEmptyRow. If it is not what you want, please provide a repro project.

Comment From: scf18857887860

ok，thank you