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https://issues.apache.org/jira/browse/FLINK-16269?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu reassigned FLINK-16269:
-------------------------------
Assignee: Jark Wu
> Generic type can not be matched when convert table to stream.
> -------------------------------------------------------------
>
> Key: FLINK-16269
> URL: https://issues.apache.org/jira/browse/FLINK-16269
> Project: Flink
> Issue Type: Bug
> Components: Table SQL / API
> Affects Versions: 1.10.0
> Reporter: xiemeilong
> Assignee: Jark Wu
> Priority: Major
>
> The query result schema printed by table.printSchema():
> {noformat}
> |-- deviceId: BIGINT
> |-- channel: STRING
> |-- schemaId: BIGINT
> |-- productId: BIGINT
> |-- schema: LEGACY('RAW', 'ANY<com.yunmo.iot.schema.Schema>')
> {noformat}
> then excuting table.toRetractStream[DeviceSchema].print(), exception throwed:
> {noformat}
> Exception in thread "main" org.apache.flink.table.api.ValidationException:
> Field types of query result and registered TableSink do not match.
> Query schema: [deviceId: BIGINT, channel: STRING, schemaId: BIGINT,
> productId: BIGINT, schema: RAW('com.yunmo.iot.schema.Schema', ?)]
> Sink schema: [deviceId: BIGINT, channel: STRING, schemaId: BIGINT,
> productId: BIGINT, schema: LEGACY('RAW',
> 'ANY<com.yunmo.iot.schema.Schema>')]{noformat}
> The com.yunmo.iot.schema.Schema is a generic type.
> The schema field of Query schema change from LEGACY('RAW' to RAW, but the
> Sink schema still a LEGACY('RAW'
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