The EXTFNAPIV4_DESCRIBE_PARM_TABLE_NUM_ROWS attribute indicates the number of rows in the table. Used in a describe_parameter_set scenario.
a_sql_a_v4_extfn_estimate
The estimated number of rows in the table. Only valid for argument 0 and table arguments.
The UDF sets this property for argument 0 if it estimates the number of rows in the result set. The server uses the estimate during optimization to make query processing decisions. You cannot set this value for an input table.
If you do not set a value, the server defaults to the number of rows specified by the DEFAULT_TABLE_UDF_ROW_COUNT option.
On success, returns a_v4_extfn_estimate.
On failure, returns one of the generic describe_parameter errors or: