[jira] [Resolved] (SPARK-24445) Schema in json format for from_json in SQL

["Maxim Gekk (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-24445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Maxim Gekk resolved SPARK-24445.
--------------------------------
    Resolution: Won't Fix

> Schema in json format for from_json in SQL
> ------------------------------------------
>
>                 Key: SPARK-24445
>                 URL: https://issues.apache.org/jira/browse/SPARK-24445
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.3.0
>            Reporter: Maxim Gekk
>            Priority: Minor
>
> In Spark 2.3, schema for the from_json function can be specified in JSON format in Scala and Python but in SQL. In SQL it is impossible to specify map type for example because SQL DDL parser can handle struct type only. Need to support schemas in JSON format as it has been already implemented [there|https://github.com/apache/spark/blob/branch-2.3/sql/core/src/main/scala/org/apache/spark/sql/functions.scala#L3225-L3229]:
> {code:scala}
> val dataType = try {
>   DataType.fromJson(schema)
> } catch {
>   case NonFatal(_) => StructType.fromDDL(schema)
> }
> {code}



--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org