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type cache for concat functions

From:	Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To:	PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject:	type cache for concat functions
Date:	2017-05-20 08:03:34
Message-ID:	CAFj8pRAT62pRgjoHbgTfJUc2uLmeQ4saUj+yVJAEZUiMwNCmdg@mail.gmail.com
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Hi

Now concat is 2x times slower than || operator. With cached FmgrInfo for
output function it will be only 5%.

Regards

Pavel

Attachment	Content-Type	Size
faster-concat.patch	text/x-patch	2.3 KB

Responses

Re: type cache for concat functions at 2017-06-17 22:50:50 from Dmitry Dolgov
Re: type cache for concat functions at 2017-08-24 17:24:50 from Alexander Kuzmenkov

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