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Subject: [PATCHES] More psql and libpq patches
Well..these would be the last patches until the release (I hope)...
I ran the regression tests while watching psql under purify, and it did
not leak even one byte.
In this patch:
* Plugged a major leak when PSQL reads files for input (either through
\i options or through -f option)
* Fixed the one remaining leak in PSQL in not clearing PGresult *results
everywhere it is supposed to. (Thanks Tymm)
* Fixed A small leak in PSQL not clearing all the PGsettings correctly.
* A not-so-obvious (but small) leak in Libpq when PQsetdb fails for any
reason.
* Added \n to some Libpq error messages to make them easier to digest..
* Finally, added /* PURIFY */ comment to some of the code indicating
the reason for why it was added/changed...for future developers.
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Subject: [PATCHES] memory leak patches in libpq and psql
A couple of small memory leak patches (detected with Purify) primarily
in libpq.
* Fixed (NULL) border problem in psql (run psql, do \m, then select
something from a table...row separators will be nulls)
* Fixed memory leak with the abovementioned border not being freed
properly.
* Fixed memory leak in freePGconn() not freeing conn->port
* Fixed up PQclear() to free parts of PGresult only if these
parts are not null.
* Fixed a decent memory leak that occured after executing every command
in psql. PGresult *results was not freed most of the time.
There is still a leak being detected (2 bytes) in readline functions, but
I think this is old readline library. I will install new one and test it.
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Made PQsetdb() and PQfnumber() case-insensitive.
Removed attempt to set table ownership via pg_dumpall.
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Subject: [PATCHES] libpq patch
Hi,
here is a small patch which fixes two problems:
1. libpq/libpq-fe.h:
somehow disappeared the line
#define DefaultOption ""
now compilation stops with an error complainig an
unknown DefaultOption (970508).
2. Same patch as I sent already twice, but it never made it
into the source tree: there is no default value for
AuthType and Password. This way any libpq-application
(i.e. perl-scripts) which use the function PQconnectdb
will break with PostgreSQL-6.1. The patch simply uses
an empty string as default value.
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Subject: [PATCHES] libpq SET var TO patch
One last, I hope. This one corrects a bogus format string, and
actually sends the contents of PG_DATESTYLE to the backend. That
means, you can do a setenv PG_DATESTYLE 'iso', and your libpq
will pick that up and tell the backend.
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with case-insensitive SQL parser.
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Subject: [PATCHES] 970417: some large object patches
Two patches here, made against 970417. Both have to do with large
objects:
1. lobjfuncs was not initialized in PQconnectdb. This causes
failure later if large objects are used. (Someone already
caught this error in PQsetdb.)
2. Postgres functions lo_import and lo_export sometimes
produce garbage for the file names because the filename
strings aren't always terminated by \0. (VARDATA isn't
necessarily null terminated.)
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FreeBSD
The Makefile(s) have all been cleaned up such that there is a single
LDFLAGS vs LD_ADD or LDADD or LDFLAGS or LDFLAGS_BE. The Makefile(s)
should be alot more straightforward then they were before...and
consistent
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Pointed out by: System Administrator <sysadmin@sba.miami.edu>
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Subject: [HACKERS] libpq variable set patch
Just a small change, so the automatic variable setting on
connection startup actually works...
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Subject: [HACKERS] Small patch to pgtclCmds.c
Hi I have made the following small change to the extensions I made to
pgtclCmds.c quite a while ago.
At the moment there is a -assignbyidx option to pg_result assigning the
returned tuples to an array by using the 1st field of the select statement
as the key to the array.
eg "select name,age from vitalstatistics" will result in an array with
myarray(peter) = 32
myarray(paul) = 45
Often I need to have a pseudo-multi dimentional
array eg. "select name,age from vitalstatistics where occupation='plummer'
I would like to be able to generate an array
newarray(peter,overpaid) = 32
So to add a arbitrary string to the key value I have extended
pg_result $res -assignbyidx $arrayname
to have an optional argument
pg_result $res -assignbyidx $arrayname $appendstr
So that that string is appended to the key value.
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Subject: [HACKERS] locale patches !
Hi there,
here are little patches to get Postgres 6.1 works with locale stuff.
This is a patch against 970402.tar.gz, there are no problem to apply them
by hand to 6.0 release. Collate stuff tested about 1-2 months in real
working database but I'm sure there must be no problem. US hackers
could vote against locale implementation ( locale for sure will affect to
speed of postgres ), so I introduce variable USE_LOCALE which
controls locale stuff. Non-US users now could use ~* operator
for searching and <order by> for strings with nation alphabet.
Please, don't forget, as I did first time, to set environment variable
LC_CTYPE and LC_COLLATE because backend get locale information from them.
I start postmaster from a little script, assuming that shell is Bash shell
it looks like:
#!/bin/sh
export LC_CTYPE=koi8-r
export LC_COLLATE=koi8-r
postmaster -B 1024 -S -D/usr/local/pgsql/data/ -o '-Fe'
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Christoph Kaesling <ck@dog.pfalz.sub.de>
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The first fixes a warning from gcc about the assignment within the condition.
The extra set of parens should not make a difference, but with -Werror, they
are necessary.
The second fixes an "ln -s" invocation that assumes the current directory is
implicitly the target if not specified. Not true in all cases, and again, it
should not make a difference except to those implementation that it does.
From: "Michael P. Snyder" <msnyder@hawkeye.huntersmoon.com>
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nicer. Also, I grabbed my copy of the Informix manual, and
added a couple of variables that make sense (formats for
money, time, a language setting, a timezone).
- New functions SetPGVariable() and GetPGVariable() in tcop/*.
These don't actually do anything for the moment, but should
be enough to implement the SET var_name TO var_val in the
parser?
SetPGVariable() expects just two strings, the var_name and
the var_value from above, and is expected to do the right thing.
Returns TRUE if everything okay.
From: "Martin J. Laubach" <mjl@wwx.vip.at>
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of common routines in pqcomprim.c (pq communication primitives).
Not all adapted to it yet, but it's a start.
- Rewritten some of those routines, to write/read bigger chunks of
data, precomputing stuff in buffers instead of sending out byte
by byte.
- As a consequence, I need to know the endianness of the machine.
Currently I rely on getting it from machine/endian.h, but this
may not be available everywhere? (Who the hell thought it was
a good idea to pass integers to the backend the other way around
than the normal network byte order? *argl*)
- Libpq looks in the environment for magic variables, and upon
establishing a connection to the backend, sends it queries
of the form "SET var_name TO 'var_value'". This needs a change
in the backend parser (Mr. Parser, are you there? :)
- Currently it looks for two Env-Vars, namely PG_DATEFORMAT
and PG_FLOATFORMAT. What else makes sense? PG_TIMEFORMAT?
PG_TIMEZONE?
From: "Martin J. Laubach" <mjl@wwx.vip.at>
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Subject: [HACKERS] Patches for 970316 compilation
I made a small pre-emptive change in the new datetime code to eliminate
calls to infnan(). Hopefully this will make Solaris (and probably other
non-GNUlib) systems happier. Didn't find fe-connect.h in the 970316
distribution, so made one up. Also, one of the test routines needs an
update for the geo-decls.h -> geo_decls.h name change.
Patches appear below...
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Subject: [HACKERS] Patch for io routines
I am currently trying to improve on the front-backend communication
routines; and noticed that lots of code are duplicated for libpq and
the backend. This is a first patch that tries to share code between
the two, more to follow.
mjl
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Subject: [HACKERS] password authentication
This patch adds support for plaintext password authentication. To use
it, you add a line like
host all 0.0.0.0 0.0.0.0 password pg_pwd.conf
to your pg_hba.conf, where 'pg_pwd.conf' is the name of a file containing
the usernames and password hashes in the format of the first two fields
of a Unix /etc/passwd file. (Of course, you can use a specific database
name or IP instead.)
Then, to connect with a password through libpq, you use the PQconnectdb()
function, specifying the "password=" tag in the connect string and also
adding the tag "authtype=password".
I also added a command-line switch '-u' to psql that tells it to prompt
for a username and password and use password authentication.
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Replaced NEED_STRDUP by !HAVE_STRDUP
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#if defined(aix)
#define TERMIOS_H_LOCATION <termios.h>
#else
#define TERMIOS_H_LOCATION <sys/termios.h>
#endif
libpq/fe-exec.c modified so that location of termios.h is determined
by whether HAVE_TERMIOS_H is defined or not, in preparation for switch
to configure
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Tcl arrays support. Here are the correct values to be defined in config.h
and pgtclCmds.c.
Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>
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which probably isn't needed, since we are going to take off -Werror
anyway, right?
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I forgot to clear out the variable created and the memory used.
From: darcy@druid.net (D'Arcy J.M. Cain)
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Fix for libpgtcl:
I forgot to clear out the variable created and the memory used.
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At least the first two should be fixed before the final release of 6.0.
1) There is a mismatch between the type declared in the catalog for
the input/output attributes of pg_type and the actual type of
values stored in the table. The type of typinput, typoutput,
typsend and typreceive are declared oid (26) while the values are
regproc (24). The error was there also in previous versions but
nobody noticed it until an Assert has been added in ExecEvalVar.
The effect is that it is now impossible to replace the typoutput
of existing data types with new procs.
2) The identd hba fails after the first time because the data read
from the identd socket is not zero-terminated and strlen reports
an incorrect length if the stack contains garbage, which usually
happens after the first connection has been made.
3) The new initdb wants to create itself the data directory. This
implies that the parent directory must be writable by postgres and
this may not always be desirable. A better solution would be to
allow the directory to be created by root and then filled by initdb.
It would also nice to have some reasonable default for PGLIB and
PGDATA like the previous version did. This applies also to the
postmaster executable.
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Hi,
counting the empty dummy queries in libpq isn't everything.
If the backend sends an error, the I returns from the dummies
still come. So we must eat them up in any case, not just
returning on the occurence of an E reply.
Until later, Jan
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Submitted by: "Martin J. Laubach" <mjl@wwx.vip.at>
NOTE: The following patch I was uncertain of, but applied it...will end up
testing the compile on my machine later tonight anyway, but if anyone
knows why this *shouldn't* have been done, please change it. (CC -> LD)
***************
*** 61,68 ****
../backend/lib/dllist.o:
$(MAKE) -C ../backend/lib dllist.o
! libpq.so.1: $(OBJS)
! $(CC) $(LDFLAGS) -shared $(OBJS) -o libpq.so.1
c.h: ../include/c.h
rm -f c.h
--- 66,73 ----
../backend/lib/dllist.o:
$(MAKE) -C ../backend/lib dllist.o
! $(shlib): $(OBJS)
! $(LD) $(LDFLAGS) -shared $(OBJS) -o $(shlib)
c.h: ../include/c.h
rm -f c.h
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these routines try to use the old pointer casting stuff to get
the connection id, second the notification hash table should
be part of the cliendData. Otherwise, one interpreter might
eat up the notifies for another one.
Please apply the patch below to the current 6.0 tree.
Submitted by: wieck@sapserv.debis.de
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gmake of the code without interruption.
There's also some tidy-up of the MAXPATHLEN stuff based on the assumption that
all supported platforms have MAXPATHLEN defined in <sys/param.h>.
(The only unknowns for the above are AIX and IRIX5.)
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