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https://issues.apache.org/jira/browse/IOTDB-749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17128791#comment-17128791
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Jialin Qiao commented on IOTDB-749:
-----------------------------------
Yes, the MAX_COLUMNS could be a configuration or depends on the memory
allocated for the query.
> Handle select * from root OOM
> -----------------------------
>
> Key: IOTDB-749
> URL: https://issues.apache.org/jira/browse/IOTDB-749
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: Core/Engine
> Reporter: Jialin Qiao
> Priority: Major
>
> In this query, select * from root
> the server will cache [the total time series * fetch size] points. This may
> cause OOM, we need to handle this.
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