amansinha100 opened a new pull request #1730: DRILL-7152: During histogram creation handle the case when all values… URL: https://github.com/apache/drill/pull/1730 … of a column are NULLs. Please see [DRILL-7152](https://issues.apache.org/jira/browse/DRILL-7152) for a description of the issue. It was caused because all the column's values are NULLs and the t-digest code-gen functions tried to generate an output for an empty t-digest since it does not store any NULL values. The fix is to check the t-digest size() first before trying to create the output.
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