added static int array of know data types which generally require size params to create.  Note that postgres 'text' type metadata returns one of these types, but it can not be created with a size param.
fixed missing break after dropTriggers in executeUpdate() switch block.  Changed logic for defining which columns require a size param to create.  Postgres 'text' is type was a stumbling block.  Should move this out to the PostgresqlDMR file but time is critical right now.