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https://issues.apache.org/jira/browse/HIVE-11056?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jesus Camacho Rodriguez resolved HIVE-11056.
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Resolution: Won't Fix
> Boolean property to specify if an operator can project columns out of the
> input tuples
> --------------------------------------------------------------------------------------
>
> Key: HIVE-11056
> URL: https://issues.apache.org/jira/browse/HIVE-11056
> Project: Hive
> Issue Type: Bug
> Reporter: Jesus Camacho Rodriguez
>
> Some operators such as SEL or RS can project columns out of the input tuples;
> however, some others will just forward the input tuples and do not project
> columns out of them e.g. FIL will forward the input tuples if the condition
> evaluates to true, without modifying them.
> We want to have a boolean property to differentiate between this kind of
> operators. This may help simplifying the code e.g. for ColumnPruner optimizer.
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