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Update WeakHash.h

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alexey-milovidov 2020-03-25 08:27:43 +03:00 committed by GitHub
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dbms/src/Common/WeakHash.h
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@ -4,7 +4,8 @@
namespace DB
{
/// It's a class which represents the result of weak and fast hash function per row in column. It's usually crc32.
/// It's a class which represents the result of weak and fast hash function per row in column.
/// It's usually hardware accelerated CRC32-C.
/// Has function result may be combined to calculate hash for tuples.
///
/// The main purpose why this class needed is to support data initialization. Initially, every bit is 1.