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https://issues.apache.org/jira/browse/LENS-188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14269119#comment-14269119
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Jaideep Dhok commented on LENS-188:
-----------------------------------
Relevant code in ResultFormatter.formatOutput
{code}
LOG.info("Result formatter for " + queryHandle + " in inmemory
result");
InMemoryResultSet inmemory = (InMemoryResultSet) resultSet;
while (inmemory.hasNext()) {
((InMemoryOutputFormatter) formatter).writeRow(inmemory.next());
}
{code}
> ResultFormatter should call InMemoryResult.setFetchSize
> -------------------------------------------------------
>
> Key: LENS-188
> URL: https://issues.apache.org/jira/browse/LENS-188
> Project: Apache Lens
> Issue Type: Bug
> Components: driver-jdbc, server
> Reporter: Jaideep Dhok
>
> ResultSet formatter iterates over in memory result's all rows and writes them
> to disk. Fetch size behaviour is highly driver specific. So we should
> explicitly call setFetchSize on InMemoryResultSet and also allow specific
> drivers to add their custom settings on the statement before issuing a query.
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