FreeTDS Development Group

["Lowden, James K" <LowdenJK AT bernstein.com>]

Well, almost.  

I added bcp_options() to db-lib, allowing you to pass an option type of
BCPHINTS.  This will allow us to support "freebcp -h" in the manner of
Microsoft's utility.  The most useful hint is "CHECK_CONSTRAINTS", forcing
the data to meet the table-defined constraints.  (Normally bcp operations
bypass constraint checks.)  

This is meant to work similarly to the way Microsoft's ODBC bcp_control()
function does, except typesafely.  Its signature is identical to Sybase's
bcp_options.  

This feature is a first:  an extension of the db-lib API that does something
neither vendor's offering does.  Sybase has bcp_options() for db-lib, but
its server doesn't accept hints.  Microsoft doesn't have bcp_options() in
its db-lib; you have to use ODBC to get that feature.  

I did not change freebcp.c, so no one uses this feature yet.  

+++

Along the way, I found a bug I didn't fix.  

If you try this:

$ freebcp tempdb..##a in  a -S nts0090 -c -U u -P p

you'll see these messages:

Msg 2701, Level 0, State 99
Server 'NTS0090', Line 1
        Database name 'tempdb' ignored, referencing object in tempdb.
Msg 2701, Level 0, State 99
Server 'NTS0090', Line 1
        Database name 'tempdb' ignored, referencing object in tempdb.

Starting copy...

Msg 2701, Level 0, State 99
Server 'NTS0090', Line 1
        Database name 'tempdb' ignored, referencing object in tempdb.
bcp copy in failed

I don't know the whole reason, but part it is:

_bcp_start_copy_in (dbproc=0x8054000)
    at
/usr/home/jklowden/projects/freetds/build/src/dblib/../../../src/dblib/bcp.c
:1598
1598                    if (!is_end_token(marker)) {
(gdb)
1555                                    return FAIL;
(gdb) p marker
$3 = 171
[2]+  Stopped                 gdb .libs/freebcp
$ grep 171 ~/projects/freetds/include/*
[...]/include/tds.h:#define TDS_MSG_TOKEN       171  /* 0xAB */

IOW, we get a message token instead of a done, and fail.  That's as far as I
got.  

Tomorrow's a holiday here in the States.  I'm taking the day off.  Happy
Thanksgiving, everyone.  

--jkl



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