| From: | Justin Pryzby <pryzby(at)telsasoft(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Joel Jacobson <joel(at)compiler(dot)org>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Isaac Morland <isaac(dot)morland(at)gmail(dot)com>, Chapman Flack <chap(at)anastigmatix(dot)net>, pgsql-hackers(at)lists(dot)postgresql(dot)org |
| Subject: | Re: Re: COPY table_name (single_column) FROM 'unknown.txt' DELIMITER E'\n' |
| Date: | 2021-05-05 19:36:01 |
| Message-ID: | 20210505193600.GX27406@telsasoft.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Wed, May 05, 2021 at 02:45:41PM -0400, Tom Lane wrote:
> > I'm currently using the pg_read_file()-hack in a project,
> > and even though it can read files up to 1GB,
> > using e.g. regexp_split_to_table() to split on E'\n'
> > seems to need 4x as much memory, so it only
> > works with files less than ~256MB.
>
> Yeah, that's because of the conversion to "chr". But a regexp
> is overkill for that anyway. Don't we have something that will
> split on simple substring matches?
For v14
commit 66f163068030b5c5fe792a0daee27822dac43791
Author: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Date: Wed Sep 2 18:23:56 2020 -0400
Add string_to_table() function.
--
Justin
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