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.
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'
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.
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
other platforms). If I do the standard make + make install the shared library
is not linked with the the libpq library and when I try to load it in the
standard Tcl or Tk shell I get a lot of unresolved symbols. The bug doesn't
affect pgtclsh because it is linked also with libpq. The problem exists only
when using the dynamic load feature of Tcl7.5.
From: Massimo Dal Zotto <dz@cs.unitn.it>
Adds:
-lAttributes
Returns another format of the results attribute list. Per
attribute a sublist of {{attname} atttype attlen} is
returned and an empty string if no attributes where
received.
-numAttrs
Returns the number of attributes in the result.
function so I am going to assume that it is such a good idea that no
one sees any point in discussing it. :-) I have made two changes -
I have merged this into pgtclCmds.c and I have taken out any code for
updating tuples after the loop body runs. See comments for discussion
of this.
I have also fixed up the error checking stuff so that break, continue
and syntax errors have the expected result.
Submitted by: D'Arcy Cain
attributes as tcl arrays. The previous code had problems with some chars
used as delimiter by Tcl. The new code should be more robust.
By: Massimo Dal Zotto <dz@cs.unitn.it>
