I'm trying to read/write to an H2 table that has a column with JSON data 
type.

H2 requires JSON strings to be predicated with `JSON` in order to be saved 
correctly as a JSON object and not a simple string.
http://www.h2database.com/html/grammar.html#json

*-- example SQL*
insert into testtable(id, username, metadata)
values(
  25,
  'joe',
  JSON '{"test":"123"}'
  *-- '{"test":"123"}' WITHOUT the JSON directive just saves an escaped 
string: "{\"test\":\"123\"}"*
)

Alternatively, one can use this syntax: values(25, 'joe', '{"test":"123"}' 
FORMAT JSON)

How can I build this INSERT with JOOQ? I am trying 

jooqDSL.insertInto(Tables.TESTTABLE).columns(
    Tables.TESTTABLE.ID, Tables.TESTTABLE.USERNAME, 
Tables.TESTTABLE.METADATA
  ).values(
    myObj.id,
    myObj.username,
    field("JSON '$myObj.jsonmeta'", JSON::class.java)
  ).execute()

This doesn't compile, the error is with `values` : None of the following 
functions can be called with the arguments supplied.

The main issue is: how do I add that `JSON` (or `FORMAT JSON`) keyword?  
Thank you very much!

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