Quanlong Huang created IMPALA-14597:
---------------------------------------
Summary: HBO Prototype for HdfsScanNode cardinality
Key: IMPALA-14597
URL: https://issues.apache.org/jira/browse/IMPALA-14597
Project: IMPALA
Issue Type: New Feature
Components: Backend, Frontend
Reporter: Quanlong Huang
Assignee: Quanlong Huang
The prototype will extract ScanNode cardinalities in query profiles and store
these historical stats in coordinator memory. Historical stats can be used in
estimating cardinality of new queries.
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
