XXHASH64
Calculates an xxHash64 64-bit hash value for a string. The value is returned as a UInt64 or NULL if the argument was NULL.
Syntax
XXHASH64(expr)
Examples
SELECT XXHASH64('1234567890');
┌────────────────────────┐
│ xxhash64('1234567890') │
├────────────────────────┤
│ 12237639266330420150 │
└────────────────────────┘