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https://issues.apache.org/jira/browse/FLINK-5280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15772767#comment-15772767
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ASF GitHub Bot commented on FLINK-5280:
---------------------------------------
Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/3039#discussion_r93757791
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/dataset/BatchTableSourceScan.scala
---
@@ -38,7 +38,9 @@ class BatchTableSourceScan(
override def deriveRowType() = {
val flinkTypeFactory =
cluster.getTypeFactory.asInstanceOf[FlinkTypeFactory]
- flinkTypeFactory.buildRowDataType(tableSource.getFieldsNames,
tableSource.getFieldTypes)
+ flinkTypeFactory.buildRowDataType(
+ tableSource.getFieldsNames,
+ TableEnvironment.getFieldTypes(tableSource.getReturnType))
--- End diff --
What if the table source return an AtomicType ? It seems that it will fail
here.
> Extend TableSource to support nested data
> -----------------------------------------
>
> Key: FLINK-5280
> URL: https://issues.apache.org/jira/browse/FLINK-5280
> Project: Flink
> Issue Type: Improvement
> Components: Table API & SQL
> Affects Versions: 1.2.0
> Reporter: Fabian Hueske
> Assignee: Ivan Mushketyk
>
> The {{TableSource}} interface does currently only support the definition of
> flat rows.
> However, there are several storage formats for nested data that should be
> supported such as Avro, Json, Parquet, and Orc. The Table API and SQL can
> also natively handle nested rows.
> The {{TableSource}} interface and the code to register table sources in
> Calcite's schema need to be extended to support nested data.
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