This sets the batch size used by the virtual database array
parameter optimization batch size. This causes several consecutive
executes of the same statement to be grouped as a single ODBC
operation with array parameters. This optimizes joins of tables on
different servers and searched updates, inserts and deletes on
attached tables. Most ODBC drivers do not support array parameters.
A value of 1 or 0 disables the optimization. This should be done if
there is a driver which falsely claims to support array parameters.
If a given driver returns an error when setting array parameters
the VDB will detect this and will not try to use them.
The effect of this setting is global and persists until the
server is restarted. The default value comes from the
ArrayParameters configuration parameter.