Jeffrey Zhong created PHOENIX-1594:
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Summary: Using KeyOnlyFilter for simple query "select count(1)
from <table>"
Key: PHOENIX-1594
URL: https://issues.apache.org/jira/browse/PHOENIX-1594
Project: Phoenix
Issue Type: Improvement
Reporter: Jeffrey Zhong
I found that underlying scan for query "select count(1) or count(*) from
<table>" still project all columns.
It should be fast if we use KeyOnlyFilter for this simple query.
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