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freetds - Re: [freetds] SQLNumResultCols() is wrong (+1)

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  • From: "ZIGLIO, Frediano, VF-IT" <Frediano.Ziglio AT vodafone.com>
  • To: "FreeTDS Development Group" <freetds AT lists.ibiblio.org>
  • Subject: Re: [freetds] SQLNumResultCols() is wrong (+1)
  • Date: Thu, 10 Jan 2008 09:52:40 +0100

> > >
> > > Try attached sample, SQLNumResultCols() gives numcols + 1
> > >
> > > >> Number of columns in result set: 4
> > >
> > > should be:
> > >
> > > >> Number of columns in result set: 3
> > >
> > >
> > > Seb
> > >
> >
> > >From dump
> >
> > 15:19:50.359222 (net.c:740):Sending packet
> > 0000 03 01 00 5e 00 00 01 00-ff ff 02 00 00 00 00 01
> |...^.... ........|
> > 0010 26 04 00 00 00 63 20 00-00 00 09 04 d0 00 00 20
> |&....c . ....... |
> > 0020 00 00 00 53 00 45 00 4c-00 45 00 43 00 54 00 20
> |...S.E.L .E.C.T. |
> > 0030 00 2a 00 20 00 46 00 52-00 4f 00 4d 00 20 00 74 |.*.
> .F.R .O.M. .t|
> > 0040 00 31 00 00 01 26 04 04-04 00 00 00 00 01 26 04
> |.1...&.. ......&.|
> > 0050 04 04 20 00 00 00 01 26-04 04 00 00 00 00 |..
> ....& ......|
> >
> > 15:19:50.359863 (util.c:162):Changed query state from QUERYING to
> > PENDING
> > 15:19:50.360069 (token.c:495):tds_process_tokens(0x8060c50,
> 0xbfe02374,
> > 0xbfe02370, 0x100)
> > 15:19:50.360230 (util.c:162):Changed query state from
> PENDING to READING
> > 15:19:50.360813 (net.c:547):Received header
> > 0000 04 01 00 b8 00 38 01 00- |.....8..|
> >
> > 15:19:50.361031 (net.c:627):Received packet
> > 0000 04 01 00 b8 00 38 01 00-81 04 00 00 00 09 00 26
> |.....8.. .......&|
> > 0010 04 01 6b 00 00 00 09 00-af 0a 00 09 04 d0 00 00
> |..k..... ........|
> > 0020 01 63 00 00 00 09 00 a7-0a 00 09 04 d0 00 00 02
> |.c...... ........|
> > 0030 76 00 63 00 00 00 00 00-38 07 72 00 6f 00 77 00
> |v.c..... 8.r.o.w.|
> > 0040 73 00 74 00 61 00 74 00-a4 07 00 01 02 00 74 00
> |s.t.a.t. ......t.|
> >
> > rowstat columns
> >
> > 0050 31 00 a5 0c 00 01 01 00-02 01 00 03 01 00 04 00
> |1....... ........|
> > 0060 14 ff 01 00 c1 00 00 00-00 00 79 00 00 00 00 ac
> |........ ..y.....|
> >
> > column 4 is hidden :(
> >
> > >From TODO:
> >
> > . test and fix: hidden fields (FOR BROWSE select, see flag
> test on tds)
> >
> > yes, correctly there is something to do with hidden fields:
> > - what happen if we bind to an hidden field??
> > - if we use SQLGetData??
> > - if we request informations with
> > SQLDescribeCol/SQLColAttribute(s)/SQLGetDescField??
> > - as you noted returning # columns hidden fields are not
> counted (there
> > is however a setting which is a mssql extension which threat hidden
> > columns as normal)
> >
> > 0070 0d 00 00 01 38 00 00 00-26 04 04 f0 de bc 0a ac
> |....8... &.......|
> > 0080 0d 00 00 01 38 00 00 00-26 04 04 04 00 00 00 ac
> |....8... &.......|
> > 0090 0d 00 00 01 38 00 00 00-26 04 04 04 00 00 00 ac
> |....8... &.......|
> > 00a0 0d 00 00 01 38 00 00 00-26 04 04 ff ff ff ff fe
> |....8... &.......|
> > 00b0 00 00 e0 00 00 00 00 00- |........|
> >
>
> I'll write tests to TODO and apply a patch that filter entirely hidden
> fields
>

Done

freddy77




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