Andrew Lamb created ARROW-9654:
----------------------------------
Summary: [Rust][DataFusion] Add an EXPLAIN command to the
datafusion CLI
Key: ARROW-9654
URL: https://issues.apache.org/jira/browse/ARROW-9654
Project: Apache Arrow
Issue Type: New Feature
Reporter: Andrew Lamb
In order to understand what DataFusion's planner is doing, it would be helpful
to have an "EXPLAIN PLAN" feature. All other database systems I have worked
with have such a feature (e.g. see
[MySql|https://dev.mysql.com/doc/refman/8.0/en/explain-output.html]).
I have found EXPLAIN helpful for both users but also very much developers.
The feature would look something like
{code}
EXPLAIN <sql>
{code}
Which would then print a string with the logical plan. One way to implement
this would simply be to use the debugging printout of the logical and physical
plans
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
