Naman Mishra created ZEPPELIN-3091:
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Summary: Charts show incorrect output for aggregation operations
in case of 'null' values
Key: ZEPPELIN-3091
URL: https://issues.apache.org/jira/browse/ZEPPELIN-3091
Project: Zeppelin
Issue Type: Bug
Reporter: Naman Mishra
Assignee: Naman Mishra
When the output data for a paragraph has 'null' or empty values, graph view
with aggregation operations such as sum, avg, max, min display incorrect
output.
Steps to reproduce:
Update the data field of a paragraph results with %table to contain null
values, e.g.,
{noformat}
"data":
"age\tvalue\n19\t4\n19\tnull\n19\tnull\n20\t3\n21\t7\n22\t9\n23\t20\n24\t24\n25\t44\n26\t77\n27\t94\n28\t103\n29\t97\n"
{noformat}
Now the sum of values grouped by age will show 6 instead of 4 for the key 19 in
the histogram and other charts. The table shows the correct output. See
attached images. Similar errors can also be seen with avg, max and min.
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