[jira] [Created] (LIVY-565) fix the bug that sql query row count is less than the actual row count of the table

["holmes.infra (JIRA)" <ji...@apache.org>]

holmes.infra created LIVY-565:
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             Summary: fix the bug that sql query row count is less than the actual row count of the table
                 Key: LIVY-565
                 URL: https://issues.apache.org/jira/browse/LIVY-565
             Project: Livy
          Issue Type: Bug
          Components: Server
            Reporter: holmes.infra


For example, there is a table with two columns ,which has two hundred rows ,and one of the column's data is all null .When the maxRows of sql query is 200 ,it will only return 100 rows.The cause is that the ColumnBuffer array ,only expands automatically when the inserted data size exceeds 100 , but does not expand if the one of column data is all null.



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