云数据库 GAUSSDB-HLL函数和操作符:操作符

时间:2024-11-01 17:13:39

操作符

  • =

    描述:比较hll或hll_hashval的值是否相等。

    返回值类型:bool

    示例:

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    --hll
    gaussdb=# SELECT (hll_empty() || hll_hash_integer(1)) = (hll_empty() || hll_hash_integer(1));
    column 
    ----------
     t
    (1 row)
    
    --hll_hashval
    gaussdb=# SELECT hll_hash_integer(1) = hll_hash_integer(1);
     ?column? 
    ----------
     t
    (1 row)
    
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