Explain shows Bitmap Index Scan Locus NULL

[avamingli]

Cloudberry Database version

No response

What happened

see example in #85

explain(locus, costs off) select c2 from t1;
                 QUERY PLAN                 
--------------------------------------------
 Gather Motion 6:1  (slice1; segments: 6)
   Locus: Entry
   ->  Parallel Bitmap Heap Scan on t1
         Locus: HashedWorkers
         Parallel Workers: 2
         ->  Bitmap Index Scan on t1_c2_idx
               Locus: NULL
 Optimizer: Postgres query optimizer
(8 rows)

What you think should happen instead

No response

How to reproduce

see example in #85

Operating System

Ubuntu

Anything else

No response

Are you willing to submit PR?

• Yes, I am willing to submit a PR!

Code of Conduct

• I agree to follow this project's Code of Conduct.