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https://issues.apache.org/jira/browse/FLINK-14414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jark Wu reassigned FLINK-14414:
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Assignee: (was: Jark Wu)
> Support string serializable for SymbolType
> ------------------------------------------
>
> Key: FLINK-14414
> URL: https://issues.apache.org/jira/browse/FLINK-14414
> Project: Flink
> Issue Type: Improvement
> Components: Table SQL / API
> Reporter: Jark Wu
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently, SymbolType has no serializable string representation, because it
> is an extension type. But we find that we still need to serialize the symbol
> type, because symbol literals are used in expressions, e.g. {{EXTRACT(DAY
> FROM DATE '1990-12-01')}}. If we want to serialize this experssion, the DAY
> symbol and type are also need to be serialized.
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