Alexey Kudinkin created HUDI-3760:
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Summary: Fetch ColStats Records by Column name
Key: HUDI-3760
URL: https://issues.apache.org/jira/browse/HUDI-3760
Project: Apache Hudi
Issue Type: Bug
Reporter: Alexey Kudinkin
Assignee: Alexey Kudinkin
Fix For: 0.11.0
Right now all the records from ColStats for _all columns,_ for _all files_ are
being read to compose the index used in Data Skipping.
In reality, individual queries touch up only a handful of columns at any given
moment, so we can very effectively prune the # of records we fetch simply
fetching records for the columns referenced in the query (by the key prefix,
since CS record key is concatenation of column, partition-path, filename)
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