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Posted to issues@kudu.apache.org by "Dan Burkert (JIRA)" <ji...@apache.org> on 2016/09/26 17:32:20 UTC
[jira] [Created] (KUDU-1652) Partition pruning / scan optimization
fails with IS NOT NULL predicate on PK column
Dan Burkert created KUDU-1652:
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Summary: Partition pruning / scan optimization fails with IS NOT NULL predicate on PK column
Key: KUDU-1652
URL: https://issues.apache.org/jira/browse/KUDU-1652
Project: Kudu
Issue Type: Sub-task
Affects Versions: 1.0.0
Reporter: Dan Burkert
Assignee: Dan Burkert
Priority: Blocker
Both the Java client and C++ client/server currently have a bug where attempting a scan with an {{IS NOT NULL}} predicate on a primary key column can through an exception (Java), or crash the C++ client or server. This is a rare situation currently since {{IS NOT NULL}} is not publicly accessible, so it has to come from a simplified predicate like {{my_int8_column <= 127}}. The fix is straightforward: stop encoding the lower/upper bound keys when an {{IS NOT NULL}} predicate is encountered.
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