From: Mergen Imeev <imeevma@tarantool.org> To: Timur Safin <tsafin@tarantool.org> Cc: tarantool-discussions@dev.tarantool.org Subject: Re: [Tarantool-discussions] The result type and argument types of the built-in SQL functions. Date: Wed, 29 Jul 2020 12:34:50 +0300 [thread overview] Message-ID: <20200729093450.GA14590@tarantool.org> (raw) In-Reply-To: <018701d66585$d4c081d0$7e418570$@tarantool.org> On Wed, Jul 29, 2020 at 11:54:12AM +0300, Timur Safin wrote: > > I general, I agree that UNSIGNED is unnecessary, but the rest of table > is pretty much ok with me. (Though blob vs string discussion opened elsewhere > is important) > > With one small note below... > > : From: Mergen Imeev <imeevma@tarantool.org> > : Subject: The result type and argument types of the built-in SQL functions. > : > : Hi, Peter! > : > : I would like to ask you a few questions about the result type and argument > : types of the SQL built-in functions. > : > : I suggest changing the result types of some functions. A table with the > : current > : result type and the suggested result type is below. > : > : FUNCTION NAME CURRENT SUGGESTED > : abs number number > : avg number double > : char string string > : character_length integer unsigned > ... > : soundex string string > : substr string string > : sum number number > : total number double > > Why total should be different than sum? (I'd use the same number) > In SQLite TOTAL always returns DOUBLE. SUM may return INTEGER if all values are of INTEGER type. > > Regards, > Timur >
prev parent reply other threads:[~2020-07-29 9:34 UTC|newest] Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-07-27 12:24 Mergen Imeev 2020-07-27 19:39 ` Peter Gulutzan 2020-07-28 11:28 ` Mergen Imeev 2020-07-29 16:47 ` Peter Gulutzan 2020-07-29 8:50 ` Timur Safin 2020-07-29 17:25 ` Peter Gulutzan 2020-07-29 8:54 ` Timur Safin 2020-07-29 9:34 ` Mergen Imeev [this message]
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