Lars Hofhansl created PHOENIX-5116:
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Summary: DistinctPrefixFilterIT
Key: PHOENIX-5116
URL: https://issues.apache.org/jira/browse/PHOENIX-5116
Project: Phoenix
Issue Type: Task
Reporter: Lars Hofhansl
Caused by this scenario outlined on PHOENIX-5109:
{quote}
This just does not end. Now there's a special case for the following:
* compound key of VARCHAR
* SELECT DISTINCT <prefix of the key>
* Salting is enabled
* There is a local index on an unrelated column
Now Phoenix selects a full local index scan, which is heuristically less
efficient... I think.
The problem is that there are cases where a plan for a salted table nonetheless
gets a key range that is not salted - does not have the salt range in it. That
throws the logic off in this case.
{quote}
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