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Subject: FreeTDS Development Group
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- From: "Lowden, James K" <LowdenJK AT bernstein.com>
- To: "'freetds AT lists.ibiblio.org'" <freetds AT lists.ibiblio.org>
- Subject: RE: [freetds] BCP performance
- Date: Wed, 5 Feb 2003 16:55:55 -0500
> From: Frediano Ziglio [mailto:freddyz77 AT tin.it]
> Sent: February 5, 2003 4:30 PM
>
> There is a patch after 0.61rc1 (in BRANCH0_61) that add an assert in
> bcp.c that cause t0017 test (dblib) to fail. I think we
> should fix this before 0.61...
I added that assertion. I'll look at t0017 tonight (if you don't first).
bcp_colfmt() was definitely broken: it relied on termlen being reasonable
for memcpy(), but one valid value for termlen, per Sybase, is -1 (no
terminator). Microsoft says no terminator means termlen should be zero,
with IMO is more sensible.
The assert should express:
if host_term is not null then host_termlen >= 0
if host_term is null, then host_termlen == -1
But if host_termlen is -1 the value of host_term is moot, really. Perhaps:
assert ((host_termlen >= 0)? (host_term != NULL) : (host_term ==
-1));
expresses it better.
Had I known the proper Sybase error code for those conditions, I would have
returned it before reaching the new assert statement.
--jkl
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-
[freetds] BCP performance,
Lowden, James K, 02/04/2003
- <Possible follow-up(s)>
- RE: [freetds] BCP performance, Lowden, James K, 02/05/2003
-
RE: [freetds] BCP performance,
Lowden, James K, 02/05/2003
- RE: [freetds] BCP performance, Frediano Ziglio, 02/05/2003
-
RE: [freetds] BCP performance,
Lowden, James K, 02/05/2003
- RE: [freetds] BCP performance, Craig A. Berry, 02/06/2003
- RE: [freetds] BCP performance, Lowden, James K, 02/07/2003
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