varchar length.
Cleans up code so attlen is always length.
Removed varchar() hack added earlier.
Will fix bug in selecting varchar() fields, and varchar() can be
variable length.
Patch by: wieck@sapserv.debis.de (Jan Wieck)
One of the design rules of PostgreSQL is extensibility. And
to follow this rule means (at least for me) that there should
not only be a builtin PL. Instead I would prefer a defined
interface for PL implemetations.
==========================================
What follows is a set of diffs that cleans up the usage of BLCKSZ.
As a side effect, the person compiling the code can change the
value of BLCKSZ _at_their_own_risk_. By that, I mean that I've
tried it here at 4096 and 16384 with no ill-effects. A value
of 4096 _shouldn't_ affect much as far as the kernel/file system
goes, but making it bigger than 8192 can have severe consequences
if you don't know what you're doing. 16394 worked for me, _BUT_
when I went to 32768 and did an initdb, the SCSI driver broke and
the partition that I was running under went to hell in a hand
basket. Had to reboot and do a good bit of fsck'ing to fix things up.
The patch can be safely applied though. Just leave BLCKSZ = 8192
and everything is as before. It basically only cleans up all of the
references to BLCKSZ in the code.
If this patch is applied, a comment in the config.h file though above
the BLCKSZ define with warning about monkeying around with it would
be a good idea.
Darren darrenk@insightdist.com
(Also cleans up some of the #includes in files referencing BLCKSZ.)
==========================================
> then you try get substr, which consists only of last char in string
> you get all string
>
> For example:
> userbase=> select substr('123456', 6,1) ;
> substr
> ------
> 123456
> (1 row)
>
From Edmund Mergl <E.Mergl@bawue.de>
Makefile.global.
End result, if all goes well, should allow for much easier porting, since
there will no longer be a concept of a "port". Most, if not everything,
*should* be determined by configure, or by the compiler itself. Still
work to be done though :)
Allow true/false, yes/no, 1/0. Throw elog warning if anything else.
Allow shorter strings, so "t", "tr", "tru" and "true" match "true".
Old behavior accepted anything starting with "t" as TRUE,
everything else as FALSE.
rather than just 't' and 'T'. This allows yes/no and 1/0
to be interpreted as one might expect.
Clean up function declarations to use bool as the type for arguments
and return values.
lconv is already taken as a struct identifier defined in a /usr/include file.
Only has an effect with USE_LOCALE enabled.
(Apparently unique to AIX and/or AIX compiler? thomas)
Use qsort to sort array of tuples for nextrun when current
run is done and put into leftist tree from sorted array!
It's much faster and creates non-bushy tree - this is ve-e-ery good
for perfomance!
2. Limit number of tuples in leftist trees:
- put one tuple from current tree to disk if limit reached;
- end run creation if limit reached by nextrun.
3. Avoid mergeruns() if first run is single one!
Change box terminology from "length" to "width".
Use length terminology in common with other geometric types (usually perimeter).
Fix bugs in line arithmetic which resulted in bad intersection calculations.
Deprecate temporary unstored slope fields.
Check explicitly for intersections at endpoints to avoid rounding ugliness.
Add center() routines for lseg, path, polygon.
Add distance() routines for circle-polygon, polygon-polygon.
Check explicitly for points and polygons contained within polygons
using an axis-crossing algorithm. (Old code just checked bounding boxes).
Add routine to convert circle-box.
*whew*
This matches the behavior of the original formatting for abstime.
Repair datetime + timespan date arithmetic for year boundaries.
From patch submitted by Dave Skinner.
the problem only manifests itself when adding years/months and hours
when the hours:minutes:seconds pushes over midnight.
Fix interpretation of times with explicit timezone when the timezone is
in daylight savings time and is not the default timezone.
Allow interpretation of explicit timezone when it is specified as two words:
<standard time> DST". For example, "MET DST" (Middle European Time Daylight
Savings Time). This syntax is found in the zic package on Linux boxes at least.
/*
* RelationFlushRelation () below will flush relation information
* from the cache. We must call smgrclose to flush relation
* information from SMGR & FMGR, too. We assume that for temp
* relations smgrunlink is already called by heap_destroyr
* and we skip smgrclose for them. - vadim 05/22/97
*/
smgrclose(reln->rd_rel->relsmgr, reln);
- it avoids memory leaks in SMGR & VFD.
RelationFlushRelation():
there is no more call FileInvalidate(RelationGetSystemPort(relation));
- invalid (FileInvalidate() expects File, not SMGR' fd)
- unuseful anyway.
Subject: [PATCHES] Re: [PORTS] AIX 6.1 fixes...
Here are the patches for the two things that wouldn't make it thru the AIX
compiler. The geo_ops.c change is harmless I believe. The nbtcompare.c patch
fixes me, but I don't know about any other ports. Maybe wait on that one
until Vadim decides what to do about the unsigned vs signed chars varlena
issue.
Bring optional new-storage date and time up to date and test.
This new storage format should fix the "Sparc gcc -O2 bug".
(Enable new code with USE_NEW_DATE and USE_NEW_TIME in dt.h)
Add type conversion functions for floating point numbers.
Check for zero in unary minus floating point code (IEEE allows an
explicit negative zero which looks ugly in a query result!).
Ensure circle type has non-negative radius.
Subject: [HACKERS] Inputting money
I notice that I have to put single quotes around money amounts if there
is a decimal point in the value. I appears to be happening because there
is something changing things like "123.45" to "123.450000" and the code
has a problem with that. There may be a better way to fix this but here
is a simple change to cash.c that lets it accept trailing zeroes.
Add comparison operators to boolean and smaller/larger operators to datetime
and timespan. Fix int4 overflow math problem in timespan comparison operators.
Here are patches which should help fix timezone problems in the
datetime and abstime code. Also, I repatched varlena.c to add in
some comments and a little error checking on top of Vadim's earlier
repairs. There are slight mods to the circle data type to have the
distance operator between circles measure the distance between
closest points rather than between centers.
Subject: [PATCHES] Patches for compiling 6.1 on Digital Unix 3.2c
Attached to this message are the patches I needed to compile 6.1 cleanly
under Digital Unix 3.2c with DEC cc.
I hope these are the last ones. At least, the number of files needing a
patch has decreased noticeably since I sent my previous patches. Nice work
:-)
One of the patches is a bug fix, but I'm including it here anyway.
With these patches applied, the beast seems to work properly. However,
I've done only some preliminary tests. More on this later (but hopefully
before the April 30 deadline... :-)
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: [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 :)
Subject: [HACKERS] Money integration patches
Here are patches to integrate the money data type. I have included
some math and aggregate functions and have made the locale support optional
by #ifdef USE_LOCALE bracketing of functions.
Modules affected are:
builtins.h.patch
cash.c.patch
cash.h.patch
main.c.patch
pg_aggregate.h.patch
pg_operator.h.patch
pg_proc.h.patch
pg_type.h.patch
I changed the data type to be pass-by-reference rather than by-value
to pave the way for a larger internal representation (64-bit ints?).
Also, I changed the tabbing of cash.c and cash.h to match most of
the other Postgres source code files (4 space indent, 8 spaces == 1 tab).
The locale stuff should be tested under another convention (Russian?)
but I don't know what the correct results should be so perhaps someone
else can give them a try. Will update docs and regression tests in
the next few days.
