Open yibin87 opened 5 months ago
tidb_opt_projection_push_down is introduced by #27029 , and is set 'off' by default, still not GA now. It aimed to improve performance in two sides:
However, there are still some basic functionality issues when this feature is set 'on':
Also exposed some existing function behavior inconsistency issues:
And after these functionality issues are fixed, we need to consider the performance impact
Others:
/assign @yibin87
Enhancement
tidb_opt_projection_push_down is introduced by #27029 , and is set 'off' by default, still not GA now. It aimed to improve performance in two sides:
However, there are still some basic functionality issues when this feature is set 'on':
Also exposed some existing function behavior inconsistency issues:
And after these functionality issues are fixed, we need to consider the performance impact
Others: