Donvi opened a new pull request, #47534:
URL: https://github.com/apache/spark/pull/47534
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### What changes were proposed in this pull request?
I'm trying to implement a way for the est metrics which is in logical plan
phase, which is similar like databricks runtime:
https://docs.databricks.com/en/optimizations/cbo.html#spark-sql-ui . I've
search the jira for the "est metrics ui", but not got the right one. So I try
to add it via this PR.
In this PR, I get the est stats from the LogicalPlan via class SparkPlan's
logicalLink and store it in the class SparkPlanInfo metadata field.
But there is no such info in class SparkPlanGraphNode, which is the UI node
for the SQL tab.
So I add the metadata field, which is with the same type as SparkPlan and
finally add it in the dotFile.
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### Why are the changes needed?
Currently I only find this info in Databricks Runtime, no open source
version. So with this change, the open source version can support the cost
based optimizer visualization.
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### Does this PR introduce _any_ user-facing change?
It only add two row for the metrics in the SparkPlan.
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### How was this patch tested?
Test in local history server to check the new row values.
The new stats is added in the metric graph.
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### Was this patch authored or co-authored using generative AI tooling?
No.
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