unofficial mirror of bug-gnu-emacs@gnu.org 
 help / color / mirror / code / Atom feed
From: Eli Zaretskii <eliz@gnu.org>
To: "Johannes Grødem" <fjas@grdm.no>
Cc: 54591@debbugs.gnu.org
Subject: bug#54591: 29.0.50; sqlite-select returns blob result as multibyte string
Date: Sat, 02 Apr 2022 08:31:52 +0300	[thread overview]
Message-ID: <83r16g3vav.fsf@gnu.org> (raw)
In-Reply-To: <878rso7iuu.fsf@flokut.localdomain> (message from Johannes Grødem on Fri, 01 Apr 2022 20:34:49 +0200)

> From: Johannes Grødem <fjas@grdm.no>
> Date: Fri, 01 Apr 2022 20:34:49 +0200
> 
> In Python's SQLite3 API, ordinary strings are inserted as SQLite TEXTs
> and bytestrings are inserted as SQLite BLOBs, and returned as the same
> when you query. It's using a function similar to row_to_value for this,
> except that it for some reason doesn't switch on SQLITE_BLOB, it just
> calls sqlite3_column_blob and tests if it returns NULL or not and then
> it does a switch on the remaining types.

This would be leaving the responsibility for the issue to the caller,
I think.  Does SQLite TEXT allow the superset of UTF-8 encoding Emacs
uses internally to store characters that are not in Unicode?  If it
does, we could indeed assume that any BLOB is binary data and not
attempt encoding/decoding it.

> Couldn't the Emacs interface just use vectors of byte values for BLOBs
> both ways?

Why?  Unibyte strings are easier and more flexible in Emacs.

Thanks.





  reply	other threads:[~2022-04-02  5:31 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-27  5:49 bug#54591: 29.0.50; sqlite-select returns blob result as multibyte string Yuan Fu
2022-03-27  6:40 ` Eli Zaretskii
2022-03-27 12:04   ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2022-03-27 14:56     ` Eli Zaretskii
2022-03-29 14:38   ` Lars Ingebrigtsen
2022-03-29 15:38     ` Eli Zaretskii
2022-03-31 11:54       ` Lars Ingebrigtsen
2022-04-01 18:34         ` Johannes Grødem
2022-04-02  5:31           ` Eli Zaretskii [this message]
2022-04-02  6:33             ` Johannes Grødem
2022-04-02  6:52               ` Eli Zaretskii
2022-04-02 12:59           ` Lars Ingebrigtsen
2022-04-02 13:51             ` Eli Zaretskii
2022-04-02 13:59               ` Lars Ingebrigtsen
2022-04-02 14:22                 ` Eli Zaretskii
2022-04-02 14:38                   ` Lars Ingebrigtsen
2022-04-02 15:26                     ` Eli Zaretskii
2022-04-02 15:28                       ` Lars Ingebrigtsen
2022-04-02 15:40                         ` Lars Ingebrigtsen
2022-04-03 10:42                           ` Rudolf Schlatte
2022-04-03 11:43                             ` Lars Ingebrigtsen
2022-04-02 14:06           ` Lars Ingebrigtsen
2022-04-28 12:58             ` Lars Ingebrigtsen
2022-04-29  4:59         ` Yuan Fu
2022-04-29 10:04           ` Lars Ingebrigtsen
2022-04-30  5:27             ` Yuan Fu

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.gnu.org/software/emacs/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=83r16g3vav.fsf@gnu.org \
    --to=eliz@gnu.org \
    --cc=54591@debbugs.gnu.org \
    --cc=fjas@grdm.no \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).