sphinxql如何得到结果数及show meta的详细说明

mysql:select count(*) from main_index; 但是这个在这里却报语法错误。 第一种方法:查文档得:Aggregate functions (AVG(), MIN(), MAX(), SUM()) in column list clause are supported. Arguments to aggregate functions can be either plain attributes or arbitrary expressions. COUNT(*) is implicitly supported as using GROUP BY will add