On 5/18/19 3:49 PM, Peter J. Holzer wrote:
On 2019-05-18 15:19:22 -0500, Ron wrote:
On 5/18/19 2:27 PM, Peter J. Holzer wrote:
On 2019-05-18 10:49:53 -0700, David G. Johnston wrote:
You don’t perform math on a hash
That's not generally true. Hashes are used for further computation for
example in hash tables or in cryptography.
How is it "using math" to use a hash key in a hash lookup table?
hash modulo table size.
I've seen that used when the *tablespace* is pre-allocated, and you hash
modulo the tablespace *page number*. (Yes, performance tanks when you start
filling up pages.) How do you hash on the (ever growing) table size?
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Angular momentum makes the world go 'round.
