Re: Problem with displaying "wide" tables in psql - Mailing list pgsql-hackers

From Sergey Muraviov
Subject Re: Problem with displaying "wide" tables in psql
Date
Msg-id CAJTaR33+c8UegWwvnm3ykP5DvviK0fXtg6JsH3ZaJ31MKTCdmQ@mail.gmail.com
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In response to Re: Problem with displaying "wide" tables in psql  (Emre Hasegeli <emre@hasegeli.com>)
Responses Re: Problem with displaying "wide" tables in psql  (Emre Hasegeli <emre@hasegeli.com>)
List pgsql-hackers
Hi.

Thanks for your review.

2014-02-15 20:08 GMT+04:00 Emre Hasegeli <emre@hasegeli.com>:
Hi,

This is my review about 3th version of the patch. It is an useful
improvement in my opinion. It worked well on my environment.

2013-12-11 17:43:06, Sergey Muraviov <sergey.k.muraviov@gmail.com>:
> It works in expanded mode when either format option is set to wrapped
> (\pset format wrapped), or we have no pager, or pager doesn't chop long
> lines (so you can still use the trick).

I do not like this logic on the IsWrappingNeeded function. It does not
seems right to check the environment variables for less. It would be hard
to explain this behavior to the users. It is better to make this only
the behavior of the wrapped format in expanded mode, in my opinion.

You are right. This logic is too complicated.
New patch works with PRINT_WRAPPED option only.


>                               {
>                                       if (opt_border < 2)
>                                               fprintf(fout, "%s\n", dlineptr[line_count].ptr);
>                                       else
>                                               fprintf(fout, "%-s%*s %s\n", dlineptr[line_count].ptr,
>                                                               dwidth - dlineptr[line_count].width, "",
>                                                               dformat->rightvrule);
>                               }

Is it necessary to keep this old print line code? It seems to me the new
code works well on (dlineptr[line_count].width <= dwidth) condition.
 
New code doesn't work with empty strings but I've done minor optimization for this case.

--
Best regards,
Sergey Muraviov
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