[BUG] Table with delete_sign will report error when join

[yangzhg]

Describe the bug
Table with delete_sign will report error when join

To Reproduce
Steps to reproduce the behavior:

1. create to unique tables table1 table2
2. run enable feature 'batch_delete' on table1 and table2
3. select xxx from table1 join table2 on xxx
4. See error

This is because the delete_sign slot is not materialized.