murali krishna created ASTERIXDB-3546:
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Summary: Use distinct estimate from sample if table size is
smaller than targeted sample size
Key: ASTERIXDB-3546
URL: https://issues.apache.org/jira/browse/ASTERIXDB-3546
Project: Apache AsterixDB
Issue Type: Improvement
Components: *DB - AsterixDB
Reporter: murali krishna
Our samples sizes are one of 1063 or 1063*4 or 1063*16.
If the table size is smaller than the targeted sample size, then the estimate
we get directly from the sample is the actual estimate. No need to call the
estimator in such cases.
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