Subject: Re: [PATCHES] SET DateStyle patches
On Tue, 22 Apr 1997, Thomas Lockhart wrote:
> Some more patches! These (try to) finish implementing SET variable TO value
> for "DateStyle" (changed the name from simply "date" to be more descriptive).
> This is based on code from Martin and Bruce (?), which was easy to modify.
> The syntax is
>
> SET DateStyle TO 'iso'
> SET DateStyle TO 'postgres'
> SET DateStyle TO 'sql'
> SET DateStyle TO 'european'
> SET DateStyle TO 'noneuropean'
> SET DateStyle TO 'us' (same as "noneuropean")
> SET DateStyle TO 'default' (current same as "postgres,us")
>
> ("european" is just compared for the first 4 characters, and "noneuropean"
> is compared for the first 7 to allow less typing).
>
> Multiple arguments are allowed, so SET datestyle TO 'sql,euro' is valid.
>
> My mods also try to implement "SHOW variable" and "RESET variable", but
> that part just core dumps at the moment. I would guess that my errors
> are obvious to someone who knows what they are doing with the parser stuff,
> so if someone (Bruce and/or Martin??) could have it do the right thing
> we will have a more complete set of what we need.
>
> Also, I would like to have a floating point precision global variable to
> implement "SET precision TO 10" and perhaps "SET precision TO 10,2" for
> float8 and float4, but I don't know how to do that for integer types rather
> than strings. If someone is fixing the SHOW and RESET code, perhaps they can
> add some hooks for me to do the floats while they are at it.
>
> I've left some remnants of variable structures in the source code which
> I did not use in the interests of getting something working for v6.1.
> We'll have time to clean things up for the next release...
Subject: [PORTS] Configure for DEC-Alpha
Configure script properly detects alpha-dec-osf4.0 machine, but
sets a default GENERIC template for it. I modified tempplate/.similar to
add alpha-dec-osf4.0=alpha. Then configure properly set the template to
alpha.
Subject: [PATCHES] Patch for configure.in to not ask for CASSERT
The following patch defaults to CASSERT, so it doesn't ask you. You can
still use --enable-cassert and --disable-cassert to do it explicitly.
Default: disabled
Subject: [PATCHES] date/time timezone patches (mail bounced?)
Here are some hacks to get timezone behavior for the various time
data types to be compatible with v6.0. Although we have some hooks
already installed to get timezone info from the client to the
server, it still isn't clear if that can correctly transfer enough
timezone info to make the behavior the same as if timezone info
were derived from the server as is now the case. We certainly
won't resolve it in a day, so I think we are stuck with server-only
timezones for v6.1.
OK, here are a passel of patches for the geometric data types.
These add a "circle" data type, new operators and functions
for the existing data types, and change the default formats
for some of the existing types to make them consistant with
each other. Current formatting conventions (e.g. compatible
with v6.0 to allow dump/reload) are supported, but the new
conventions should be an improvement and we can eventually
drop the old conventions entirely.
For example, there are two kinds of paths (connected line segments),
open and closed, and the old format was
'(1,2,1,2,3,4)' for a closed path with two points (1,2) and (3,4)
'(0,2,1,2,3,4)' for an open path with two points (1,2) and (3,4)
Pretty arcane, huh? The new format for paths is
'((1,2),(3,4))' for a closed path with two points (1,2) and (3,4)
'[(1,2),(3,4)]' for an open path with two points (1,2) and (3,4)
For polygons, the old convention is
'(0,4,2,0,4,3)' for a triangle with points at (0,0),(4,4), and (2,3)
and the new convention is
'((0,0),(4,4),(2,3))' for a triangle with points at (0,0),(4,4), and (2,3)
Other data types which are also represented as lists of points
(e.g. boxes, line segments, and polygons) have similar representations
(they surround each point with parens).
For v6.1, any format which can be interpreted as the old style format
is decoded as such; we can remove that backwards compatibility but ugly
convention for v7.0. This will allow dump/reloads from v6.0.
These include some updates to the regression test files to change the test
for creating a data type from "circle" to "widget" to keep the test from
trashing the new builtin circle type.
Subject: [HACKERS] Another patch to configure.in
I heard very little in objections/approvals to defaulting some of the
parameters to configure. Enclosed is a patch to configure.in which
removes the questions for
PGPORT
USE_LOCALE
NOHBA
By default (i.e. assuming you don't put anything extra in the configure
command line), it assumes PGPORT=5432, USE_LOCAL=no and NOHBA=no (i.e.
HBA is turned on)
--with-pgport=PGPORT_NO Over-rides the PGPORT value
--enable-locale enables USE_LOCALE
--disable-hba disables HBA
Just for completeness:
--prefix=BASEDIR Defaults to /usr/local/pgsql
--with-template=TEMPLATE Defaults to asking you
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.)
Subject: [PATCHES] 970417: two more patches for large objects
Here are two more patches:
1. pg_getint doesn't properly set the status flag when
calling pqGetShort or pqGetLong. This is required when
accessing large objects via libpq. This, combined with
problem 1 above causes postgres to crash when postgres
tries to print out the message that the status was not
good.
2. ExceptionalCondition crashes when called with detail =
NULL. This patch prevents dereferencing the NULL.
Subject: [HACKERS] Patch: set date to euro/us postgres/iso/sql
Here a patch that implements a SET date for use by the datetime
stuff. The syntax is
SET date TO 'val[,val,...]'
where val is us (us dates), euro (european dates), postgres,
iso or sql.
Thomas is working on the integration in his datetime module.
I just needed to get the patch out before it went stale :)
table. The table name is de-allocated by the CommitTransactionCommand()
in vc_init() before it is copied in VacRel.data and sometimes this causes
a SIGSEGV. My patch simply moves the strcpy before vc_init.
Submitted by Massimo Dal Zotto <dz@cs.unitn.it>.
index tuple (logical position within A LEVEL). bti_oid & bti_dummy
taken off from BTItemData.
2. Fix for multi-column indices (nbtsearch.c):
_bt_binsrch() - for searches on internal pages having keysize <
number of attrs we point at the last item < the scankey, not at the
first item = the scankey;
_bt_moveright() - if keysize < number of attrs we compare scankey with
_last_ item on current page to decide should we move right or
not.
Vadim B. Mikheev