askalt opened a new pull request, #20137:
URL: https://github.com/apache/datafusion/pull/20137
## Rationale for this change
We support `DELETE LIMIT` query and it would be good to port our fork patch
to the upstream.
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## What changes are included in this PR?
This patch adds a support for delete statement with limit planning. An inner
table scan is wrapped with a limit in this case. e.g.:
```
query TT
explain delete from t1 limit 10
----
logical_plan
01)Dml: op=[Delete] table=[t1]
02)--Limit: skip=0, fetch=10
03)----TableScan: t1
physical_plan
01)CooperativeExec
02)--DmlResultExec: rows_affected=0
```
## Are these changes tested?
Covered with SLT.
## Are there any user-facing changes?
Now queries with limited deletion are successfully planned, instead of
returning not-supported error.
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