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https://issues.apache.org/jira/browse/FLINK-19749?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dian Fu closed FLINK-19749.
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Fix Version/s: 1.12.0
Resolution: Fixed
Merged to master via 9ee5d6de12ef589dac4ba53ec9ee7cb4de38781c
> Improve documentation for "Column Operations" in Table API page
> ---------------------------------------------------------------
>
> Key: FLINK-19749
> URL: https://issues.apache.org/jira/browse/FLINK-19749
> Project: Flink
> Issue Type: Improvement
> Components: Documentation, Table SQL / API
> Reporter: appleyuchi
> Assignee: Roc Marshal
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.12.0
>
> Attachments: Old API examples.png
>
>
> in this
> [link|https://ci.apache.org/projects/flink/flink-docs-stable/dev/table/tableApi.html]
> there's a "description":
> *Performs a field add operation. Existing fields will be replaced if add
> columns name is the same as the existing column name. Moreover, if the added
> fields have duplicate field name, then the last one is used.*
> Two point:
> ①" add columns name "->" added column's name"
> ②"if the added fields have duplicate field name",
> what's the example that has two duplicate field name?
> Could you modify them?
> They're a little misleading/unclear.
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