void function_name ( FNC_Phase aggregation_phase, FNC_Context_t *function_context, type_1 *input_parameter_1, ..., type_n *input_parameter_n, result_type *result, char sqlstate[6] ) { ... }
void function_name ( FNC_Phase aggregation_phase, FNC_Context_t *function_context, type_1 *input_parameter_1, ..., type_n *input_parameter_n, result_type *result, char sqlstate[6] ) { ... }