Github user wzhfy commented on a diff in the pull request:
https://github.com/apache/spark/pull/19649#discussion_r148925392
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/ExternalCatalog.scala
---
@@ -147,7 +154,15 @@ abstract class ExternalCatalog
* Note: If the underlying implementation does not support altering a
certain field,
* this becomes a no-op.
*/
- def alterTable(tableDefinition: CatalogTable): Unit
+ final def alterTable(tableDefinition: CatalogTable): Unit = {
--- End diff --
This depends on which level of details we wanna collect in the event. Are
there any guidelines or documentation of what events spark should monitor?
Besides, partition changes are missing, I think it's necessary to also
monitor these changes.
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