PSQL has the option to output the result of queries in several different
formats, including HTML. Suggestion: have an option to output query
results in XML format. Suggested format:
row
field-1-namefield-1 value/field-1-name
field-2-namefield-2 value/field-2-name
/row
etc. The user
I was trying this:
IF (OLD.value != NEW.value) THEN
--
END IF;
and couldn't get the condition to evaluate to true at
all if OLD.value was NULL. I also tried:
IF (OLD.value NOT LIKE NEW.value) THEN
--
END IF;
with the same result. But this works:
IF ((OLD.value is NULL and NEW.value is NOT
Am Mittwoch, den 19.10.2005, 22:04 +0200 schrieb Tino Wildenhain:
Am Mittwoch, den 19.10.2005, 16:29 -0300 schrieb Marc G. Fournier:
I'm CC'ng this over to -hackers ... Tom? Comments?
...
Then we are broken too :)
# select 'a ' = 'a ';
?column?
--
f
(1
Tom Lane [EMAIL PROTECTED] writes:
Chris Travers [EMAIL PROTECTED] writes:
If I understand the spec correctly, it seems to indicate that this is
specific to the locale/character set.
The spec associates padding behavior with collations, which per spec are
separate from the datatypes ---
On Oct 20, 2005, at 14:50 , Dean Gibson (DB Administrator) wrote:
PSQL has the option to output the result of queries in several
different formats, including HTML. Suggestion: have an option to
output query results in XML format. Suggested format:
My personal opinion on this is that
Am Mittwoch, den 19.10.2005, 21:05 +0100 schrieb Ledina Hido:
On 19 Oct 2005, at 16:05, codeWarrior wrote:
You can also reverse engineer a postgreSQL RDBMS using an ODBC
driver and
MicroSloth's Visio.
Were you sucessfully w/ it? If so, which exact versions of all?
(PG, Visio, ODBC)
On Oct 20, 2005, at 15:04 , CSN wrote:
So, does NULL != 'abc' always evaluate to false? The
manual
(http://www.postgresql.org/docs/8.0/interactive/functions-
comparison.html)
states don't compare NULL values using =, but nothing
about using !=
The SQL standard way of checking for NULL is
On Wed, Oct 19, 2005 at 11:04:36PM -0700, CSN wrote:
So, does NULL != 'abc' always evaluate to false?
It never evaluates to false -- it evaluates to NULL.
http://www.postgresql.org/docs/8.0/interactive/functions-comparison.html
The ordinary comparison operators yield null (signifying
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Michael
Glaesemann
Sent: Wednesday, October 19, 2005 11:24 PM
On Oct 20, 2005, at 14:50 , Dean Gibson (DB Administrator) wrote:
PSQL has the option to output the result of queries in several
different
On Oct 20, 2005, at 15:45 , Roger Hand wrote:
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] Behalf Of Michael
Glaesemann
Sent: Wednesday, October 19, 2005 11:24 PM
On Oct 20, 2005, at 14:50 , Dean Gibson (DB Administrator) wrote:
PSQL has the option to
On Oct 20, 2005, at 15:44 , Michael Fuhr wrote:
expression IS DISTINCT FROM expression
For non-null inputs this is the same as the operator. However,
when both inputs are null it will return false, and when just one
input is null it will return true. Thus it effectively acts as
Marius Cornea wrote:
1.The sintax for create table is :
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
{ column_name data_type [ DEFAULT default_expr ] [ column_constraint [
... ] ] ...
What mean the parameter GLOBAL|LOCAL ??
Cristian Prieto wrote:
This is maybe a really newbie question, but, when I have an SQL function
like that:
$$
Insert into mytable (id, name) values ($1, $2);
$$
What return value suppose to return?
Either return void or return boolean and add a SELECT true;
statement to the end of your
surabhi.ahuja wrote:
i checked the locale it is giving:
LANG=en_US.iso885915
LC_CTYPE=en_US.iso885915
If you Google for ISO-8859-15 Latin9 the top two results seem to give
details. Oh - there are two naming systems for character sets, just to
make things even more complicated.
Now,
Rafael Montoya wrote:
I need to know if there is a tool that convert oracle procedures and
triggers to plpgsql syntax. Please, can anybody tell me where do i
download it from?, i'll thank you a lot.
I don't know of a free tool that will do procedures. Probably worth
reading through Oracle
Dann Corbit wrote:
I can see plenty of harm and absolutely no return. We are talking about
blank padding before comparison. Do you really want 'Danniel '
considered distinct from 'Danniel ' in a comparison? In real life,
what does that buy you?
100% YES!
If two values are the same, then
On 19.10.2005 21:18, Michael Fuhr wrote:
One possibility would be to write a plperlu function that uses the
Email::Valid module. Here's a trivial example; see the Email::Valid
documentation to learn about its full capabilities:
..and if you don't mind installing pl/php, you can use this
Thanks Tom, now at least I can stop chasing what I'm doing wrong :-)
BTW, will be a way to also log the parameter values for prepared
statements ? While debugging performance problems it would be
invaluable, in many cases it would help me reproduce the problem when
only SOME values cause
On 19.10.2005 05:16, Bruno Cochofel wrote:
His there any SW that can do reverse engineering on postgreSQL
databases? I need something that can create entity-relationship models
from an already made db, and something that can create a db from a model.
Casestudio does this very nice.
--
On Thu, Oct 20, 2005 at 03:23:51PM +0900, Michael Glaesemann wrote:
My personal opinion on this is that there are a lot of different
ideas about how the XML should/could be written, and a the current
output can be piped to a script in insert favorite scripting
language here to format to
Hello!
How can I get table's comment, created like this:
COMMENT ON TABLE people IS '...comment...' ?
What system table keeps comments on databases, schemas and tables?
Big Thanks,
Andrei
---(end of broadcast)---
TIP 5: don't forget
At
http://www.postgresql.org/docs/8.0/static/sql-reindex.html
it says:
Rebuild all system indexes in a particular database,
without trusting them to be valid already:
$ export PGOPTIONS=-P
$ psql broken_db
It should be:
Rebuild all system indexes in a
Hannes Dorbath schrieb:
On 19.10.2005 05:16, Bruno Cochofel wrote:
His there any SW that can do reverse engineering on postgreSQL
databases? I need something that can create entity-relationship models
from an already made db, and something that can create a db from a model.
Casestudio does
Michael Glaesemann wrote:
if (OLD.value IS NOT NULL and NEW.value IS NOT NULL and OLD.value
NEW.value) or OLD.value IS NULL or NEW.value IS NULL
But that's untested and I have a hard time thinking in three-value logic.
For completeness sake; Because of lazy evaluation, that boils down to:
Title: Re: [GENERAL] server , client encoding issue
how can i change the client
encoding to LATIN1?
i know it can be done by changing the
postgresql.conf
but i want to include it in the code
...
is it possible that PQconnectdb can take a
parameter for client encoding if yes how??
if
Hello.
Could someone say which versions of ODBC drivers
are recommended for PostgreSQL/MS Access 2003 combination, for:
a) Postgres 8.0.4
b) Postgres 8.1 beta
Namely, I was not able to connect from my Access
front-end when I migrated from Postgres 8.0.4 to Postgres 8.1
beta3
Arethere
On Thu, Oct 20, 2005 at 03:41:51PM +0530, surabhi.ahuja wrote:
how can i change the client encoding to LATIN1?
i know it can be done by changing the postgresql.conf
Send the query:
set client_encoding=latin1;
Have a nice day,
--
Martijn van Oosterhout kleptog@svana.org
In article [EMAIL PROTECTED],
Tony Caduto [EMAIL PROTECTED] wrote:
I believe that as each process(backend) is created it will get assigned
to a CPU.
At least with Linux the process can run on any CPU. It isn't
restricted to some assignment at the time of its creation.
--
As part of my 4th Year Group Design Project, I am required to build a
database system that will validate and then store the data. As such I
am currently investigating different DB, to choose the most suitable
one. I liked many features of PostgreSQL (eg deferring transactions)
but there
Hello list,
I am working to format an interval in using the to_char() SQL function
on postgresql 7.4.8. I've had nothing but disapointment so far.
My confusion occurs when I'm trying to format using days where the days
output would be more than 99. For example:
I would like to do something
Andrus [EMAIL PROTECTED] writes:
I have a database of e-mail addresses.
I want to select the email addresses which are not valid:
do not contain exactly one @ character,
contain ;' , characters or spaces etc.
What is the WHERE clause for this ?
There was a thread here not so
On Wed, Oct 19, 2005 at 03:25:25PM +0100, Ledina Hido wrote:
First of all, is there any way of limiting the number of rows in a
table, referencing to the same element of another table? For example,
force a manager not to have more than 10 employees under his control.
In a way this can be
On 20 Oct 2005, at 12:31, Martijn van Oosterhout wrote:
On Wed, Oct 19, 2005 at 03:25:25PM +0100, Ledina Hido wrote:
First of all, is there any way of limiting the number of rows in a
table, referencing to the same element of another table? For example,
force a manager not to have more than 10
Hannes Dorbath [EMAIL PROTECTED] writes:
On 19.10.2005 21:18, Michael Fuhr wrote:
One possibility would be to write a plperlu function that uses the
Email::Valid module. Here's a trivial example; see the Email::Valid
documentation to learn about its full capabilities:
..and if you don't
On Thu, Oct 20, 2005 at 12:44:53PM +0100, Ledina Hido wrote:
I am not sure if CHECK constraints will work, as I don't think you
can reference another table in one of those. And I think it might
even not let you have a subquery (ie a select inside the check
statement). So I don't know
On 20.10.2005 14:00, Douglas McNaught wrote:
But that's expensive and slow
Sure, that isn't meant to be used in a WHERE condition on a 100k row
table.. more to be bound via check constraint on a user table, so
incomming data is validated.
and doesn't tell you whether the user part of the
On 10/20/2005 2:17 AM, Greg Stark wrote:
(I can't believe anyone really wants varchar to be space padded. Space padding
always seemed like a legacy feature for databases with fixed record length
data types. Why would anyone want a string data type that can't represent all
strings?)
They must
On a table (customer) I have a rule set up that is designed to update
a contacts table with a customer id once the customer is added to the
customer table. (Yes, this does seem backwards but it has to do with the
way this system of web-based signups gets translated into a customer
record).
On Oct 20, 2005, at 18:22 , Андрей wrote:
How can I get table's comment, created like this:
COMMENT ON TABLE people IS '...comment...' ?
What system table keeps comments on databases, schemas and tables?
Here are a couple of links to documents that might help.
On Thu, 2005-10-20 at 08:14 -0400, Jan Wieck wrote:
On 10/20/2005 2:17 AM, Greg Stark wrote:
(I can't believe anyone really wants varchar to be space padded. Space
padding
always seemed like a legacy feature for databases with fixed record length
data types. Why would anyone want a
Sven Willenberger wrote:
Is this intended behavior? or is the NEW
acting as a macro that is replace by nextval(sequence name) ?
Well, it's understood behaviour even if not quite intended.
You are quite right, rules basically act like macros with all the
limitations they have. What is
Janning Vygen [EMAIL PROTECTED] writes:
At
http://www.postgresql.org/docs/8.0/static/sql-reindex.html
it says:
Rebuild all system indexes in a particular database,
without trusting them to be valid already:
$ export PGOPTIONS=-P
$ psql broken_db
It should be:
Alban Hertroys [EMAIL PROTECTED] writes:
Michael Glaesemann wrote:
if (OLD.value IS NOT NULL and NEW.value IS NOT NULL and OLD.value
NEW.value) or OLD.value IS NULL or NEW.value IS NULL
But that's untested and I have a hard time thinking in three-value logic.
For completeness sake;
Martijn van Oosterhout kleptog@svana.org writes:
On Thu, Oct 20, 2005 at 03:41:51PM +0530, surabhi.ahuja wrote:
how can i change the client encoding to LATIN1?
Send the query:
set client_encoding=latin1;
Also, whatever client-side library you're using may have alternative
ways to specify the
Richard Huxton wrote:
Dann Corbit wrote:
I can see plenty of harm and absolutely no return. We are talking about
blank padding before comparison. Do you really want 'Danniel '
considered distinct from 'Danniel ' in a comparison? In real life,
what does that buy you?
100% YES!
If two
On Thu, 2005-10-20 at 15:01 +0100, Richard Huxton wrote:
Sven Willenberger wrote:
Is this intended behavior? or is the NEW
acting as a macro that is replace by nextval(sequence name) ?
Well, it's understood behaviour even if not quite intended.
You are quite right, rules basically act
Sven Willenberger wrote:
On Thu, 2005-10-20 at 15:01 +0100, Richard Huxton wrote:
However, in this particular case I think you want an after insert
trigger on customer rather than a rule.
As as AFTER INSERT trigger, I can safely assume here that NEW.custid wil
now properly use the actual
On Thu, Oct 20, 2005 at 03:57:41PM +0900, Michael Glaesemann wrote:
On Oct 20, 2005, at 15:44 , Michael Fuhr wrote:
expression IS DISTINCT FROM expression
For non-null inputs this is the same as the operator. However,
when both inputs are null it will return false, and when just one
At 05:33 PM 10/19/2005 -0700, Dann Corbit wrote:
If there is a significant performance benefit to not expanding text
columns in comparison operations, then it seems it should be OK.
I probably read the standard wrong, but it seems to me that varchar, char,
and bpchar columns should all
Dann Corbit wrote:
Try this query in Oracle, SQL*Server, DB/2, Informix, etc.:
connxdatasync=# select 1 where cast('a' as varchar(30)) = cast('a ' as
varchar(30));
?column?
--
(0 rows)
For what it's worth, on Sybase ASE I get:
---
1
(1 row affected)
Guy Rouillier [EMAIL PROTECTED] wrote in message
news:[EMAIL PROTECTED]
Andrus wrote:
I have a database of e-mail addresses.
I want to select the email addresses which are not valid:
do not contain exactly one @ character,
contain ;' , characters or spaces etc.
What is the WHERE
On 10/20/05, Douglas McNaught [EMAIL PROTECTED] wrote:
It performs a MX-lookup, which IMHO is the best way to check for validity.But that's expensive and slow, and doesn't tell you whether the userpart of the address is valid (and in general, there's no way to
determine that short of actually
On Wed, Oct 19, 2005 at 01:02:15PM -0300, Marc G. Fournier wrote:
that idiocy is that a string with two blank characters is not equal to a
string with a single blank character in Oracle. 'a ' is not equal to 'a
'. 'a ' is not equal to 'a'. Port that to another database. Seen the
JOIN
Tom Lane wrote:
Wrong. SQL doesn't guarantee lazy evaluation. The above will work,
but it's because TRUE OR NULL is TRUE, not because anything is promised
about evaluation order.
Learned something new again, then.
I also noticed FALSE OR NULL is NULL, which went against my intuition. I
On Thu, Oct 20, 2005 at 06:10:40PM +0300, Andrus wrote:
From this thread I got the regular expression
[snipped]
Note that that regular expression, which appears to be validating
TLDs as well, is incredibly fragile. John Klensin has actually
written an RFC about this very problem. Among other
On Thu, Oct 20, 2005 at 11:22:25AM -0400, Brian Mathis wrote:
That's why I think the better term for this is well formed. Validity can
only be determined by sending to it, but you can tell if an address at least
In fact, it can only be determined by sending to it over and over
again, because
Am Donnerstag, 20. Oktober 2005 16:04 schrieb Tom Lane:
Janning Vygen [EMAIL PROTECTED] writes:
it says:
$ export PGOPTIONS=-P
$ psql broken_db
It should be:
$ export PGOPTIONS=-P
$ postgres broken_db
No, it's correct as it stands. You used to need a
On 2005-10-19 23:52, Michael Glaesemann wrote:
On Oct 20, 2005, at 15:45 , Roger Hand wrote:
On Oct 20, 2005, at 14:50 , Dean Gibson (DB Administrator) wrote:
PSQL has the option to output the result of queries in several
different formats, including HTML. Suggestion: have an option to
I am new to databases.
I have table 1, a primary source, which generates a serial number to make
each item unique.
I want to use this number to generate a row in table 2 linking the two rows
and allowing specific information on each item to be developed..
I have a number of books,
dev@archonet.com (Richard Huxton) writes:
If you have money to spend, it might be worth checking out
EnterpriseDB - they claim to have Oracle compatibility. News
item/company site below.
http://www.postgresql.org/about/news.367
http://www.enterprisedb.com/
It would be quite useful to
On Thu, Oct 20, 2005 at 09:37:07AM -0700, Bob Pawley wrote:
I have table 1, a primary source, which generates a serial number
to make each item unique.
Do you mean that the table has a serial column (which is just a
convenient way to declare an integer column that takes its default
value from a
On Thu, Oct 20, 2005 at 06:04:53PM +0200, Janning Vygen wrote:
By the way: What i really miss is a troubleshooting document in the
docs. I run postgresql for over 4 years now and i have come across
many situations where i really would need something like this. You
can find most solutions by
On 10/20/05 12:37 PM, Bob Pawley [EMAIL PROTECTED] wrote:
I am new to databases.
I have table 1, a primary source, which generates a serial number to make each
item unique.
I want to use this number to generate a row in table 2 linking the two rows
and allowing specific information on
-Original Message-
From: [EMAIL PROTECTED] [mailto:pgsql-hackers-
[EMAIL PROTECTED] On Behalf Of Greg Stark
Sent: Wednesday, October 19, 2005 11:17 PM
To: Tom Lane
Cc: Chris Travers; josh@agliodbs.com; pgsql-hackers@postgresql.org;
Dann
Corbit; Stephan Szabo; Terry Fielder; Tino
On Thu, 2005-10-20 at 12:35 -0400, Chris Browne wrote:
dev@archonet.com (Richard Huxton) writes:
If you have money to spend, it might be worth checking out
EnterpriseDB - they claim to have Oracle compatibility. News
item/company site below.
http://www.postgresql.org/about/news.367
Dann Corbit wrote:
Let me make something clear:
When we are talking about padding here it is only in the context of a
comparison operator and NOT having anything to do with storage.
IIrc, varchar and bpchar are stored in a similar way, but are presented
differently when retrieved. I.e.
-Original Message-
From: Chris Travers [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 20, 2005 11:53 AM
To: Dann Corbit
Cc: Greg Stark; Tom Lane; Chris Travers; josh@agliodbs.com; pgsql-
[EMAIL PROTECTED]; Stephan Szabo; Terry Fielder; Tino Wildenhain;
Marc G. Fournier; [EMAIL
Andrew Sullivan [EMAIL PROTECTED] wrote in message
I suggest that if you want to validate TLDs, you pull them off when
you write the data in your database, and use a lookup table to make
sure they're valid (you can keep the table up to date regularly by
checking the official IANA registry
On Thu, Oct 20, 2005 at 09:54:13PM +0300, Andrus wrote:
Andrew Sullivan [EMAIL PROTECTED] wrote in message
I suggest that if you want to validate TLDs, you pull them off when
you write the data in your database, and use a lookup table to make
sure they're valid (you can keep the table up
On Thu, Oct 20, 2005 at 11:52:40AM -0400, Andrew Sullivan wrote:
On Thu, Oct 20, 2005 at 06:10:40PM +0300, Andrus wrote:
From this thread I got the regular expression
[snipped]
Note that that regular expression, which appears to be validating
TLDs as well, is incredibly fragile. John
Does anyone by any chance have a win32 binary compiled for the code
found in the below thread? I have been trying and for the life of me
cannot get it(or pg from source) to compile in my windows environment.
I'm sure it's user error on my part, but I don't have the time at the
moment to figure it
I will happily reiterate that I am the troll who started this mess by
whining about how *Oracle* handles this. Tom's explanation that CHAR is
has a PAD collation and VARCHAR has a NO PAD collation have restored my
faith that there is goodness in the world. My whining was out of
ignorance. I
On Thu, Oct 20, 2005 at 09:54:13PM +0300, Andrus wrote:
How to write a WHERE clause which selects e-mail addresses which
are surely wrong ?
Then I think the validating function someone else sent here
(http://www.databasejournal.com/img/email_val.sql) is a good start.
You probably want the
[Removed all the non-list addresses]
Dann Corbit wrote:
Let me make something clear:
When we are talking about padding here it is only in the context of a
comparison operator and NOT having anything to do with storage.
Given two strings of different in a comparison, most database systems
(by
Look back in the stack and you will find that I have quoted chapter and
verse (see the attached html file in a previous email that I sent).
This is in relation to the comparison operator.
-Original Message-
From: John D. Burger [mailto:[EMAIL PROTECTED]
Sent: Thursday, October 20,
On Thu, Oct 20, 2005 at 09:28:25AM -0700, Dean Gibson (DB Administrator) wrote:
I just find it surprising that XML is not one of the formats provided,
considering that XML is considered a data interchange format (much more
than HTML, which is a representation format).
All jokes aside, saying
Chris Travers [EMAIL PROTECTED] writes:
IIrc, varchar and bpchar are stored in a similar way, but are presented
differently when retrieved. I.e. storage is separate from presentation
in this case. I.e. the padding in bpchar occurs when it is presented
and stripped when it is stored.
This
Interesting article:
http://coveryourasp.com/ValidateEmail.asp
See also:
http://search.cpan.org/~cwest/Email-Address-1.80/lib/Email/Address.pm
http://www.faqs.org/rfcs/rfc2822.html
http://docs.python.org/lib/module-rfc822.html
-Original Message-
From: [EMAIL PROTECTED]
Guy Rouillier [EMAIL PROTECTED] writes:
Doug Quale wrote:
# select 'a'::char(8) = 'a '::char(8);
?column?
--
t
(1 row)
Trailing blanks aren't significant in fixed-length strings, so the
question is whether Postgresql treats comparison of varchars right.
This result is
On Thu, Oct 20, 2005 at 12:34:39PM -0700, Steve Atkins wrote:
While there are valid deliverable email addresses in .arpa, you really
don't want to be accepting them from end users...
You know, as someone who has been bitten hundreds of times by the
decision of some application designer who
Hello,
I have something like this:
CREATE or replace rule update_rule as on update
to aview
do instead (
select func_display(new, old);
select rubriek('reset', 0, '', 0);
);
(Postgres 8.0.3).
I tried all kinds of variations (one select with two functions, and two
On Oct 20, 2005, at 23:45 , Michael Fuhr wrote:
On Thu, Oct 20, 2005 at 03:57:41PM +0900, Michael Glaesemann wrote:
On Oct 20, 2005, at 15:44 , Michael Fuhr wrote:
expression IS DISTINCT FROM expression
For non-null inputs this is the same as the operator. However,
when both inputs
Tom Lane [EMAIL PROTECTED] wrote on 10/20/2005 03:11:23 PM:
snip
The hard part would be in figuring out how
the output routine could know how many spaces to add back.
The length is in the metadata for the column, or am I being dense?
regards, tom lane
On Wed, 2005-10-19 at 15:25 +0100, Ledina Hido wrote:
First of all, is there any way of limiting the number of rows in a
table, referencing to the same element of another table? For example,
force a manager not to have more than 10 employees under his control.
In a way this can be seen
[EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] wrote on 10/20/2005 03:11:23 PM:
The hard part would be in figuring out how
the output routine could know how many spaces to add back.
The length is in the metadata for the column, or am I being dense?
The output routine hasn't got access
[EMAIL PROTECTED] writes:
I have something like this:
CREATE or replace rule update_rule as on update
to aview
do instead (
select func_display(new, old);
select rubriek('reset', 0, '', 0);
);
I tried all kinds of variations (one select with two functions, and two
Hrishi Joshi wrote:
Hi,
I need to define a Unique index on 3 non-PK fields (composite key) on my
table in PostgreSQL 8.0.3.
The problem is, if any of those 3 fields is Null, PostgreSQL allows
duplicate rows to be inserted. While searching through archives, I found
more information about this.
Martijn van Oosterhout wrote:
On Thu, Oct 20, 2005 at 09:28:25AM -0700, Dean Gibson (DB Administrator) wrote:
I just find it surprising that XML is not one of the formats provided,
considering that XML is considered a data interchange format (much more
than HTML, which is a representation
On Thursday, October 20, 2005 1:01 PM, Martijn van Oosterhout wrote:
On Thu, Oct 20, 2005 at 09:28:25AM -0700, Dean Gibson (DB
Administrator) wrote:
I just find it surprising that XML is not one of the formats
provided,
considering that XML is considered a data interchange format (much
more
BTW, it (the SQL spec I presume) has always seemed
contradictory to me that you can't do:
select * from table where field=null;
but can do:
update table set field=null;
(as opposed to 'update table set field to null' or
similar).
CSN
CSN [EMAIL PROTECTED] writes:
BTW, it (the SQL spec I presume) has always seemed
contradictory to me that you can't do:
select * from table where field=null;
but can do:
update table set field=null;
This only seems contradictory if you fail to make the distinction
between = used as a
On Thu, 20 Oct 2005, Doug Quale wrote:
Guy Rouillier [EMAIL PROTECTED] writes:
Doug Quale wrote:
# select 'a'::char(8) = 'a '::char(8);
?column?
--
t
(1 row)
Trailing blanks aren't significant in fixed-length strings, so the
question is whether Postgresql treats comparison of
On 10/20/2005 6:10 AM, Alban Hertroys wrote:
Michael Glaesemann wrote:
if (OLD.value IS NOT NULL and NEW.value IS NOT NULL and OLD.value
NEW.value) or OLD.value IS NULL or NEW.value IS NULL
But that's untested and I have a hard time thinking in three-value logic.
For completeness sake;
93 matches
Mail list logo
