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https://issues.apache.org/jira/browse/FLINK-15677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17019211#comment-17019211
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hailong wang commented on FLINK-15677:
--------------------------------------

My idea is simple, just replace 
{code:java}
TableConnectorUtils.generateRuntimeName(getClass(), 
getTableSchema().getFieldNames());
{code}
with 
{code:java}
List<String> fieldNames = ((RowType) 
getProducedDataType().getLogicalType()).getFieldNames(); return 
TableConnectorUtils.generateRuntimeName( getClass(), 
fieldNames.stream().toArray(String[]::new));
{code}
Are there some thing that have not been considered? [~lzljs3620320] [~jark]

> TableSource#explainSource should return the field names from 
> getProducedDataType instead of getTableSchema
> ----------------------------------------------------------------------------------------------------------
>
>                 Key: FLINK-15677
>                 URL: https://issues.apache.org/jira/browse/FLINK-15677
>             Project: Flink
>          Issue Type: Improvement
>          Components: Table SQL / Planner
>    Affects Versions: 1.10.0
>            Reporter: hailong wang
>            Priority: Major
>             Fix For: 1.11.0
>
>
> For the fields push down, the final fieldNames  of tablesource are not 
> consistent with FieldNames from TableSchema. So we should return the field 
> names from getProducedDataType instead of getTableSchema.



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