function difference not found

Started by Shaozhong SHIover 4 years ago5 messagesgeneral
Jump to latest
#1Shaozhong SHI
shishaozhong@gmail.com

Function difference not found.

Should an extension created for finding it?

Regards,

David

#2Adrian Klaver
adrian.klaver@aklaver.com
In reply to: Shaozhong SHI (#1)
Re: function difference not found

On 11/25/21 08:12, Shaozhong SHI wrote:

Function difference not found.

This means what?

Should an extension created for finding it?

Finding what?

Questions without substance will not get answers.

Regards,

David

--
Adrian Klaver
adrian.klaver@aklaver.com

#3Achilleas Mantzios
achill@matrix.gatewaynet.com
In reply to: Shaozhong SHI (#1)
Re: function difference not found

On 25/11/21 6:12 μ.μ., Shaozhong SHI wrote:

Function difference not found.

Should an extension created for finding it?

fuzzystrmatch

Regards,

David

--
Achilleas Mantzios
DBA, Analyst, IT Lead
IT DEPT
Dynacom Tankers Mgmt

#4David G. Johnston
david.g.johnston@gmail.com
In reply to: Shaozhong SHI (#1)
Re: function difference not found

On Thu, Nov 25, 2021 at 9:13 AM Shaozhong SHI <shishaozhong@gmail.com>
wrote:

Function difference not found.

Should an extension created for finding it?

It's an operator (there may be a backing function that isn't documented)...

SELECT 5 - 2; -- yields 3, the difference of 5 and 2.

David J.

#5Osvaldo Kussama
osvaldo.kussama@gmail.com
In reply to: Shaozhong SHI (#1)
Re: function difference not found

2021-11-25 13:12 GMT-03:00, Shaozhong SHI <shishaozhong@gmail.com>:

Function difference not found.

Should an extension created for finding it?

Perhaps you are talking about EXCEPT set operator?
https://www.postgresql.org/docs/current/queries-union.html