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Currently the first projection column is taken as the bucketing column for cte materialization. However it makes more sense to implement random bucketing instead since that will remove skew from readers and writers and improve performance.
We could also look for downstream exchanges and add bucketing on that exchange column and potentially remove the exchange but that will be an overkill
Expected Behavior or Use Case
Presto Component, Service, or Connector
Possible Implementation
Example Screenshots (if appropriate):
Context
The text was updated successfully, but these errors were encountered:
Currently the first projection column is taken as the bucketing column for cte materialization. However it makes more sense to implement random bucketing instead since that will remove skew from readers and writers and improve performance.
We could also look for downstream exchanges and add bucketing on that exchange column and potentially remove the exchange but that will be an overkill
Expected Behavior or Use Case
Presto Component, Service, or Connector
Possible Implementation
Example Screenshots (if appropriate):
Context
The text was updated successfully, but these errors were encountered: