[jira] [Closed] (FLINK-18002) Support forcing varchar type in Json format

["Benchao Li (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-18002?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benchao Li closed FLINK-18002.
------------------------------
    Resolution: Fixed

> Support forcing varchar type in Json format
> -------------------------------------------
>
>                 Key: FLINK-18002
>                 URL: https://issues.apache.org/jira/browse/FLINK-18002
>             Project: Flink
>          Issue Type: Improvement
>          Components: Formats (JSON, Avro, Parquet, ORC, SequenceFile)
>            Reporter: Benchao Li
>            Assignee: Benchao Li
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.12.0
>
>
> Currently in json format, if the field type is varchar, we will call `JsonNode.asText()` which we always assumes the JsonNode is a TextNode.
> However, in many cases, we want to force it as varchar for other types, etc ObjectNode. We should use `JsonNode.toString()` for other JsonNode instead of `JsonNode.asText()`.



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