Re: Use java interface "setArray" to insert the array of user-defined type to table

On Wed, 23 Feb 2022 at 09:58, Charles Kong <kdy77k(at)gmail(dot)com> wrote:

> Hi all,
> I use a user-defined type in “schema.sql”
> CREATE TYPE infoEntity AS (
> "entity_id" bigint,
> "seq" integer,
> "message" varchar(255)
> )
>
> in java code:
> java_infoEntity[] infoEntityArray; //java_infoEntity is the class with the
> same member variables.
> infoEntityArray = new java_infoEntity[3];
> infoEntityArray[0] = new java_infoEntity();
> ....
>
> //info_Entity's type is user-defined type "infoEntity".
> sql = "insert into \"T_abc\" (info_Entity) values(?);";
> statement = conn.prepareStatement( sql );
> Array array = conn.createArrayOf("infoEntity", infoEntityArray);
> statement.setArray(1,array);
> statement.addBatch();
> statement.executeBatch();
> ....
> ....
> Sql throw exception:
> sqlException: SQLState: 22P02 Error Code: 0 Error Message: Batch entry 0
> insert into "T_abc" (info_Entity)
> values('{"com(dot)xxx(dot)java_infoEntity(at)597d57aa"}') was aborted: ERROR:
> malformed record literal: "com(dot)xxx(dot)java_infoEntity(at)597d57aa"
>
> *How to cope with it?*
>
>
The JDBC driver does not know how to deal with user defined types. You will
have to write code to serialize the type yourself.

Regards,
Dave