maria-discuss team mailing list archive

[Peter Laursen <peter_laursen@xxxxxxxxxx>]

I get the result (what I think is expected) from the query "SELECT
COLUMN_JSON(COLUMN_CREATE('name', UNHEX('C1C2C3C4C5C6'))):"

*{"name":"ÁÂÃÄÅÆ"} *

.. in SQLyog (GUI client always using UTF8 as client character set)  on
Windows. In command line client shipped with MariaDB 10.0 for Windows, I
get garbage (both after SET NAMES latin1 and SET NAMES utf8 - but MariaDB
does not (yet) have a fully unicode-enabled commandline client for Windows
like MySQL 5.6 and 5.7 have).

Are you sure that your client environment will handle all those
special/accented characters at the same time? I think you bumped into an
encoding issue in the client of some kind. What is your client environment
and OS, and what does the query return here?



-- Peter
-- Webyog

On Sat, Jan 31, 2015 at 3:59 PM, Tom Worster <fsb@xxxxxxxxxx> wrote:

> I could have been more direct. What should be the expected behavior in the
> following?
>
> SELECT COLUMN_JSON(COLUMN_CREATE('name', UNHEX('C1C2C3C4C5C6')));
>
>
> From: Tom Worster <fsb@xxxxxxxxxx>
> Date: Friday, January 30, 2015 at 9:05 PM
> To: maria-discuss email list <maria-discuss@xxxxxxxxxxxxxxxxxxx>
> Subject: [Maria-discuss] JSON and binary strings
>
> BINARY is one of the datatypes you can use with dynamic columns. If you
> try saving binary string and then retrieve it with COLUMN_JSON() then you
> get an invalid JSON document back. All the JSON decoders I tested reject
> such documents.
>
> It doesn't make sense to me that COLUMN_JSON() would return a document
> that's invalid according to the JSON spec and can't be decoded. But I don't
> know what it should do. It seems that BINARY in dynamic columns means that
> COLUMN_JSON() is in an impossible position.
>
> [On a related note, if you save a valid utf8 string that includes control
> characters (e.g. "I went down to the river,\nI set down on the bank.") then
> COLUMN_JSON() fails to escape them. While similar, this I think is a bug.]
>
> Tom
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