datatype's in TAP_SCHEMA.columns

[Walter Landry]

Hi Everyone,

In surveying how existing TAP providers set the datatype for a
timestamp column in TAP_SCHEMA.columns, I have seen all of

  datatype=timestamp
  datatype=adql::TIMESTAMP
  datatype=char

As I understand it, in TAP 1.1, the correct way to represent it is
something like

  datatype = char
  arraysize = *
  xtype = timestamp

Is that correct?

Thanks,
Walter Landry