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https://issues.apache.org/jira/browse/PIG-4638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Niels Basjes updated PIG-4638:
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Status: Patch Available (was: Open)
> Allow TOMAP to accept dynamically sized input
> ----------------------------------------------
>
> Key: PIG-4638
> URL: https://issues.apache.org/jira/browse/PIG-4638
> Project: Pig
> Issue Type: Improvement
> Affects Versions: 0.15.0
> Reporter: Niels Basjes
> Assignee: Niels Basjes
> Fix For: 0.16.0
>
> Attachments: PIG-4638-20150723.patch
>
>
> Currently the TOMAP function only supports a parameter list of values.
> Triggered by reading http://stackoverflow.com/q/17847970/
> {quote}I want to convert a bag of tuples to a map with specific value in each
> tuple as key. Basically I want to change:
> \{(id1, value1),(id2, value2), ...\} into \[id1#value1, id2#value2\]{quote}
> I propose to make the TOMAP accept both the current form
> {code}TOMAP($0, $1, $2, $3){code}
> and a new form where the a single parameter:
> A bag of Tuples where each Tuple has exactly two fields: a "key" and a
> "value".
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