For each row that satisfies the filter condition, the database server applies hash function to the key and proves the hash table to find a match.
在满足筛选器条件的每个行中，数据库服务器将对键应用哈希函数，并探测哈希表以查找匹配的键值。
It generates a hash table from the predetermined list of valid command-line options and a lookup function whose time complexity is o (1).
它将从预定的有效命令行选项列表和时间复杂度为O(1)的查找函数中生成一个散列表。
You can think of a hash table conceptually as a series of buckets, each with an address that is derived form the key value by applying the hash function.
可以在概念上将哈希表认为是一系列的bucket，每个 bucket 所拥有的地址是通过应用哈希函数从键值导出的。
A perfect hash function is produced when gperf finds a configuration that assigns each keysig to a unique location within the generated lookup table.
当gperf找到某种配置，并且该配置将每个keysig分配到生成的查找表中惟一位置时，将生成一个完美hash函数。
Then the second table is scanned, only once, the function directs us to the proper slot in the hash table and from there you find the pointers to the matching rows.
然后，第二个表被扫描，只扫描一次，那个函数引导我们到哈希表中适合的位置，并且从那里，你找到匹配的行指针。
If the data is stored sequentially, the time to find the item is proportional to the size of the list. For each element, a hash function calculates a number, which is used as an index into the table.
如果数据是序列存储的，从中查询一个项的时间取决于数据列的大小。
Also note that the given PHP code won't work for you as I added special functions exporting the table mask and hash function to mz version of PHP.
另外要注意的是，这些代码在你的环境中是无法工作的，因为我在PHP源码中添加了一些表掩码和哈希函数相关的代码。
When overridden in a derived class, serves as a hash function for the specified object for hashing algorithms and data structures, such as a hash table.
当在派生类中被重写时，用作指定对象的哈希算法和数据结构(如哈希表)的哈希函数。
Serves as a hash function for a particular type, suitable for use in hashing algorithms and data structures such as a hash table.
用作特定类型的哈希函数，适合在哈希算法和数据结构(如哈希表)中使用。
When overridden in a derived class, serves as a hash function for hashing algorithms and data structures, such as a hash table.
在衍生类别中覆写时，做为杂凑演算法和资料结构之指定物件的杂凑函式，例如杂凑表。
When overridden in a derived class, serves as a hash function for hashing algorithms and data structures, such as a hash table.
在衍生类别中覆写时，做为杂凑演算法和资料结构之指定物件的杂凑函式，例如杂凑表。
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