[jira] [Updated] (FLINK-10120) Support string representation for types like array

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

     [ https://issues.apache.org/jira/browse/FLINK-10120?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

buptljy updated FLINK-10120:
----------------------------
    Description: 
In TypeStringUtils.readTypeInfo:
{code:java}
    case _: BasicArrayTypeInfo[_, _] | _: ObjectArrayTypeInfo[_, _] |
         _: PrimitiveArrayTypeInfo[_] =>
      throw new TableException("A string representation for array types is not supported yet.")
{code}
This exception makes us unable to create a table schema or format schema with a array type field.

I'm not sure whether this is an improvement or not, because you throw an exception explicitly here.


  was:
Now we have to use row type to replace array type when we want to create a table schema or format schema with nested types. For example, we have to use

{code:java}
Types.ROW(
		new String[]{"a", "b", "c"},
		new TypeInformation[]{Types.STRING(), Types.INT(), Types.ROW(
				new String[]{"a", "b", "c"},
				new TypeInformation[]{Types.STRING(), Types.STRING(),Types.STRING()})}
{code}
instead of 

{code:java}
Types.ROW(
		new String[]{"a", "b", "c"},
		new TypeInformation[]{Types.STRING(), Types.INT(), BasicArrayTypeInfo.STRING_TYPE_INFO})
{code}
because the program will fail in TypeStringUtils.readTypeInfo.



> Support string representation for types like array
> --------------------------------------------------
>
>                 Key: FLINK-10120
>                 URL: https://issues.apache.org/jira/browse/FLINK-10120
>             Project: Flink
>          Issue Type: Improvement
>          Components: Type Serialization System
>            Reporter: buptljy
>            Priority: Minor
>
> In TypeStringUtils.readTypeInfo:
> {code:java}
>     case _: BasicArrayTypeInfo[_, _] | _: ObjectArrayTypeInfo[_, _] |
>          _: PrimitiveArrayTypeInfo[_] =>
>       throw new TableException("A string representation for array types is not supported yet.")
> {code}
> This exception makes us unable to create a table schema or format schema with a array type field.
> I'm not sure whether this is an improvement or not, because you throw an exception explicitly here.



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