zhimin wu created KYLIN-5794:
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Summary: Add Spark parquet footer read cache
Key: KYLIN-5794
URL: https://issues.apache.org/jira/browse/KYLIN-5794
Project: Kylin
Issue Type: Improvement
Reporter: zhimin wu
*Optimization Proposal*
In Kylin, the index storage is in Parquet format. When querying, if Spark reads
Parquet data, it needs to read the Footer information first. In cases where
there are many columns, reading the Footer can consume a considerable amount of
time. Therefore, caching the Footer information can improve query performance.
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