appleyuchi created FLINK-19749:
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Summary: document error
Key: FLINK-19749
URL: https://issues.apache.org/jira/browse/FLINK-19749
Project: Flink
Issue Type: Bug
Reporter: appleyuchi
in this link 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.
" add columns"->" added column's name"
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