robdiciuccio commented on issue #8226: Handle int64 columns with missing data in SQL Lab URL: https://github.com/apache/incubator-superset/pull/8226#issuecomment-531914136 The dataframe implementation looks good, as does the Presto engine dtype fix, but does this fully address https://github.com/apache/incubator-superset/issues/8225 if only Presto is handled? Are there other databases this fix should be implemented for (even in a separate PR)? Also curious about your thoughts on the feasibility of the PyArrow workaround [here](https://issues.apache.org/jira/browse/ARROW-5379?focusedCommentId=16888163&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-16888163).
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