From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: X-Spam-Status: No, score=-0.9 required=5.0 tests=BAYES_00,FORGED_GMAIL_RCVD, FREEMAIL_FROM,T_HK_NAME_FM_MR_MRS autolearn=no autolearn_force=no version=3.4.4 Path: eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!toylet.eternal-september.org!.POSTED!not-for-mail From: "Mr. Man-wai Chang" Newsgroups: comp.lang.ada Subject: Re: language defined list of prime numbers Date: Fri, 15 Dec 2017 19:41:37 +0800 Organization: Hung Hom, Kowloon, Hong Kong Message-ID: References: <1afe0b2c-eb71-4197-9bbb-b78532e4cd7e@googlegroups.com> <28272985-7cda-4b86-a369-a45e87198abd@googlegroups.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Injection-Date: Fri, 15 Dec 2017 11:41:36 -0000 (UTC) Injection-Info: toylet.eternal-september.org; posting-host="922ce7714f239912f31416a3c43fa2a0"; logging-data="32591"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1+Z8Ia0OntUj+Zmcfv3KTEf" User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 In-Reply-To: Cancel-Lock: sha1:mzROZiW53kfyJZf/NuDjkK6P8sk= Xref: reader02.eternal-september.org comp.lang.ada:49485 Date: 2017-12-15T19:41:37+08:00 List-Id: On 15/12/2017 1:58 PM, Dirk Heinrichs wrote: > Am 13.12.2017 um 11:41 schrieb Mr. Man-wai Chang: > >> I suspect prime numbers could be used in generating unique keys for >> databases. Anyway... > > What's wrong about (big-)int or uuid for this? Or did I miss some > esoteric new trend? I don't remember them using prime numbers. -- @~@ Remain silent! Drink, Blink, Stretch! Live long and prosper!! / v \ Simplicity is Beauty! /( _ )\ May the Force and farces be with you! ^ ^ (x86_64 Ubuntu 9.10) Linux 2.6.39.3 不借貸! 不詐騙! 不援交! 不打交! 不打劫! 不自殺! 請考慮綜援 (CSSA): http://www.swd.gov.hk/tc/index/site_pubsvc/page_socsecu/sub_addressesa