Gaurav Jindal wrote
a has relation with b and b has relation with c
Given this statement what specifically are you having difficulty with. You
are allowed to perform multiple joins, whether explicit or via FROM/WHERE,
in the same query.
SELECT ...
FROM a,b,c
WHERE a=b and b=c
OR
SELECT ...
Susan Cassidy-3 wrote
I have a query with several joins, where I am searching for specific data
in certain columns.
While accurate as far as describing a typical query it doesn't really tell
us its intent
What is the first query doing wrong?
No idea, though it may have something to do
A couple of thoughts:
1) The union really only pertains to the entity table rows; once you
union all those (duplicates should not matter and probably will not even
be present so using all avoids an unnecessary sort) you can join that
sub-query to the document_usage table.
2) Since every entity
Willy-Bas Loos-3 wrote
Hi,
I ran into some strange behavior.
Seems like a bug to me?
wbloos=# select round(0.5::numeric), round(0.5::double precision);
round | round
---+---
1 | 0
(1 row)
Not a bug; and likely to simple to have escaped notice this long so the
first
Raymond O'Donnell wrote
On 15/04/2014 17:20, David G Johnston wrote:
Willy-Bas Loos-3 wrote
Hi, I ran into some strange behavior. Seems like a bug to me?
wbloos=# select round(0.5::numeric), round(0.5::double precision);
round | round ---+--- 1 | 0 (1 row)
Not a bug
One possibility is that the INSERT is going to a different table (having the
same name but existing in a different schema) that is visible/default to the
function but not outside of it.
Or the function on the server is not current and thus isn't doing what you
think it is.
I do an insert via
Susan Cassidy-3 wrote
Nor can any regular SELECTs in the main program find it.
Ever?
If this is a same transaction visibility issue then when your Perl program
stops you should be able to go find that ID manually to confirm it was
inserted and committed properly. If you still cannot find the
I'm presuming the OP is using the typical model of:
conn = getConnection()
id = doInsert(conn)
rst = doSelect(conn, id)
doSomething(rst)
conn.commit()
conn.relrease()
Robert DiFalco wrote
Two common cases I can think of:
1. The PERL framework is only caching the insert and does not actually
Please note that everyone here but you is bottom-posting; please follow the
convention and list standard.
Susan Cassidy-3 wrote
It is never committed, because the lookup for the insert fails.
So, alter the code so only the first insert happens then stop further
processing and go explore that
Dorian Hoxha wrote
Hi list,
I have a
create type thetype(width integer, height integer);
create table mytable(thetype thetype[]);
How can i make an insert statement so if i later add fields to the
composite type, the code/query doesn't break ?
Maybe by specifying the fields of the
Hengky Lie wrote
Select * from crosstab($$select produkid, warehouseid,onhand from vwtest
order by 1,2$$)
as t (produkid VARCHAR, warehouseid integer)
The crosstab command didn't work with error : Return and sql tuple
descriptions are incompatible.
I have tried to change productid type
Andres Freund-3 wrote
Hi,
On 2014-04-27 10:23:18 +0200, Rafał Pietrak wrote:
I've just experienced an unexpected (for me) loss of DELETE. Is this a
feature or a bug (postgres v.s. SQL)?
I guess you're using 9.2 or older? You are not allowed to update the
deleted row in a BEFORE trigger.
Dorian Hoxha wrote
Hi list,
I am trying to use postgresql as a queue for long-jobs (max ~4 hours)
using
advisory_locks. I can't separate the long-job into sub-jobs.
1. At ultimate-best-case scenario there will be ~100 workers, so no
web-scale performance required.
Is there a
David Ekren wrote
I am new to this forum. I need to return the value 1 between the
orientationId tags in this xml string within the function below. I still
get errors. I'm sure I am doing something wrong. Any help would be
appreciated.
CREATE FUNCTION Davidxml9(v_clipId integer,
Raymond O'Donnell wrote
Hi all,
Probably a silly question, but I'm having trouble figuring out the
answer... if I'm constructing an string representation of a value to go
into a text[] column, and one of the text literals includes
double-quotes, do I need to escape the literal?
For
Raymond O'Donnell wrote
'{abc, def}'
Or would I need to do this? -
E'{abc, def}'
Do you realize that both of the above expressions are effectively identical?
David J.
--
View this message in context:
Raymond O'Donnell wrote
On 29/04/2014 22:54, David G Johnston wrote:
Raymond O'Donnell wrote
Hi all,
Probably a silly question, but I'm having trouble figuring out the
answer... if I'm constructing an string representation of a value to go
into a text[] column, and one of the text literals
Torsten Förtsch wrote
Hi,
we have the ROW type and we have arrays. We also can create arrays of
rows like:
select array_agg(r)
from (values (1::int, 'today'::timestamp, 'a'::text),
(2, 'yesterday', 'b')) r(a,b,c);
array_agg
Torsten Förtsch wrote
On 30/04/14 20:19, David G Johnston wrote:
ISTM that you have to CREATE TYPE ... as appropriate then
... tb ( col_alias type_created_above[] )
There is only so much you can do with anonymous types (which is what the
ROW
construct creates; ROW is not a type
Prashanth Kumar wrote
Hi,
Do not seem to figure out what is wrong here. Why am I getting database
does not exist. I just created the database and am able to connect to it
as postgres user.
I am trying to restrict testuser from connecting to myDB database.
Thomas is likely correct about
DrakoRod wrote
Hi everybody!
I have a problem (really huge problem), I have one server of production,
but yesterday in the night I saw this error:
*
ERROR: could not access status of transaction 2410303155
DETAIL: Could not open file pg_clog/08FA: No such file or directory
*
Hengky Lie wrote
The crosstab warehouse column name (OFFICE Store2) is taken from
tblwarehouse so when user add warehouse, crosstab column name will change
automatically. And also each row has total qty.
In what programming language? The only way to do this is to dynamically
construct the
webcoyote wrote
I desire to create a SELECT statement where one of the column names comes
from another table. Something like:
SELECT id, (SELECT type FROM favorite_food_type WHERE user = 'ralph')
FROM foods;
If Ralph's favorite food type is fruit, ultimately I'd like the query to
Hengky Lie wrote
Hi David,
Are you sure that there is no pure sql solution for this ?
I think (with my very limited postgres knowledge), function can solve
this.
Which is the column header I need but I really have no idea how to use
this
as column header.
Anyway, If i can't do
So, I am trying to import a file into a table and want to assign a sequence
value to each record as it is imported.
I know that I can pre-process the input file and simply add the needed data
but I am curious if maybe there is some trick to having defaults populate
for missing columns WITHOUT
On Tue, May 6, 2014 at 4:48 PM, John R Pierce [via PostgreSQL]
ml-node+s1045698n5802802...@n5.nabble.com wrote:
On 5/6/2014 1:22 PM, David G Johnston wrote:
I know that I can pre-process the input file and simply add the needed
data
but I am curious if maybe there is some trick to having
Thank you everyone; some good programs to check out but I just went ahead and
used awk to add two additional columns of data to the input file before
sending it onto psql.
David J.
--
View this message in context:
Ravi Roy wrote
But if I try to connect using pgadmin (from the same machine) it gives
acess to database without password, i'm surprised as it does not seem to
respect pg_hba.conf or i'm terribly wrong in the configuration somewhere.
You likely told pgadmin to remember (store) passwords.
If
Andrus Moor wrote
Dump worked for years without issues when server was 32 bit Windows 2003
server and Postgres and pg_dump were earlier version 9 (but after upgrade
new rows are added to attachme table).
How to create backup copies or diagnose the issue ?
I can change pg_dump execution
SELECT l.id, u.id, func(l.id, u.id)
FROM ids l CROSS JOIN ids u
WHERE l.id u.id
Depending on whether you always update a known pair, or instead invalidate
all rows where either id is a given value, you can use various means to
manage the resultant materialized view. Triggers or interface
Jay at Verizon wrote
Hi all,
If I turn use_watchdog = off in the pgpool.conf file, then in spite of the
system being configured as master-slave, a socket file is created in /tmp,
and everything starts normally with no errors. If, however, I set
use_watchdog = on, pgpool will abort on
Vincent de Phily wrote
On Friday 09 May 2014 06:52:33 Adrian Klaver wrote:
On 05/09/2014 05:36 AM, Vincent de Phily wrote:
On Friday 09 May 2014 07:01:32 Tom Lane wrote:
Vincent de Phily lt;
vincent.dephily@
gt; writes:
In case it changes anything, this is the uncut (but still
Tim Kane wrote
The subject line may not actually describe what I want to illustrate…
Basically, let’s say we have a nicely partitioned data-set. Performance is
a
net win and I’m happy with it.
The partitioning scheme is equality based, rather than range based.
That is, each partition
On Sun, May 11, 2014 at 2:08 PM, Tim Kane [via PostgreSQL]
ml-node+s1045698n5803574...@n5.nabble.com wrote:
From: Tom Lane [hidden
email]http://user/SendEmail.jtp?type=nodenode=5803574i=0
David G Johnston [hidden
email]http://user/SendEmail.jtp?type=nodenode=5803574i=1
writes:
Two
Adrian Klaver-4 wrote
On 05/11/2014 10:17 AM, Ravi Roy wrote:
Thanks a lot Tom, it worked by putting off the read only mode to off
before changing the password and putting it on again.
SET default_transaction_read_only = off;
Worked for me..
It works but the point Tom was making is here:
I
suggest that you move the password to a separate table (my_role_password)
with 2 columns:
1. my_role_id
2. password.
This way you can make the my_role table totally unalterable by the user,
yet they can change their own password.
Actually, you should NOT be storing
Tim Kane wrote
clone=# create temp table xml_test (document xml);
CREATE TABLE
If you know you need to use xpath on this content then you should do one of
the following:
SELECT CASE WHEN document IS DOCUMENT THEN xpath(...) ELSE
default_value_for_missing_data END;
CREATE TABLE xml_test (
Alvaro Herrera-9 wrote
Souquieres Adam wrote:
The solution must be to define a *better strategy for tables
statistics*... we dont really need stats on all the tables because
the most part of them is static...
Tune autovacuum so that it does the analyses for you?
And for those few tables
Did you try rewriting the query to avoid using an IN expression?
UPDATE foo SET processing = 't'
FROM (
SELECT id FROM foo WHERE processing = 'f' ORDER BY id ASC LIMIT 5000 FOR
UPDATE
) src
WHERE foo.id = src.id;
The workaround I mentioned above said that a CTE was needed but I'm thinking
that a
Adrian Klaver-4 wrote
On 05/15/2014 01:31 AM, Craig Ringer wrote:
Hi all
I just noticed a Stack Overflow question
(http://stackoverflow.com/q/20124393/398670) where someone's asking how
to decode '\u` style escapes *stored in database text fields* into
properly encoded text strings.
Steve Crawford wrote
On 05/20/2014 10:44 AM, Alvaro Herrera wrote:
Steve Crawford wrote:
Is there a way to force a specific index to be removed from
consideration in planning a single query?
Specifically, on a 60-million-row table I have an index that is a
candidate for removal. I have
On Tue, May 20, 2014 at 3:20 PM, Jeff Janes [via PostgreSQL]
ml-node+s1045698n580459...@n5.nabble.com wrote:
On Tue, May 20, 2014 at 11:48 AM, Steve Crawford [hidden
email]http://user/SendEmail.jtp?type=nodenode=5804596i=0
wrote:
On 05/20/2014 10:44 AM, Alvaro Herrera wrote:
Steve
Laurentius Purba wrote
Hello all,
I've been seeing lots of this processes in my database DEALLOCATE
pdo_stmt_0001 with idle state.
Executing *select * from pg_stat_activity where query like
'DEALLOCATE%';*I can see some of them are idle for +/- 30 minutes, and
there is one idle
for
David Noel wrote
COPY (SELECT * FROM page WHERE PublishDate between '2014-03-01' and
'2014-04-01') TO
'/home/ygg/sql/backup/pagedump.2014-03-01.to.2014-04-01.copy';
Is /home/ygg a client or server path?
COPY != \copy
David J.
--
View this message in context:
Rushi wrote
copy (select * from (select s1.head as h1,s1.tail as t1 ,s2.tail as
neighbor from miami_2d s1, miami_directednetwork s2 where s1.tail=s2.head
and s2.tail not in (select tail from miami_2d where head=s1.head)) as O
where O.h1!=O.neighbor) to '/tmp/tmp.txt'
Some thoughts:
The O
saqibrafique wrote
hi guys,
I am trying to convert a simple char value to HEX but I am getting Error.
*
MyTable:
*
CREATE TABLE mytable (from_ip CHAR(20), to_ip CHAR(20));
*
I have below values in the Table:
*
fm_db_Server1=# select * from operator;
from_ip|
Kalai R wrote
I have checked no problem in pg_hba.conf file.
Also I have disabled AV software checks for the Postgres Directories.
But Problem remains
Disabling AV won't magically make the system start working if it's already
broken. You disable it to avoid breaking the system in the
Tom Lane-2 wrote
Dmitry Samonenko lt;
shreddingwork@
gt; writes:
Yeah, that will work. Looks simple to implement in the client. Question
is:
why don't you think it should be a part of the libpq's API? It's a must
have feature in high availability environments where only several minutes
Quang Thoi wrote
Thanks Steve!
Just want to get confirmation that postgres does not use any special rules
When no sorting order specified.
Didn't your testing prove that out sufficiently? I'd be more concerned,
though, if you took random congruence between the two results (I.e. If they
Tim Kane wrote
I suspect this might be resolved in a newer point release of 9.3, however
I
don’t have the luxury on this particular host right now.
Any suggestions how I might convince 9.3.0 to accept the dump from 9.2.4?
Given the history of 9.3 if you cannot use the most current point
Peter Eisentraut-2 wrote
On 5/29/14, 11:59 AM, Bob Moyers wrote:
When I try this update:
UPDATE REPORT_STYLE SET JASPER_STYLE = XMLPARSE(DOCUMENT ?) WHERE
(REPORT_STYLE_NAME = ?)
I get:
org.postgresql.util.PSQLException: ERROR: invalid XML content
Detail: line 2: StartTag:
Have you read this chapter of the documentation?
http://www.postgresql.org/docs/9.3/interactive/plpgsql.html
Carlos Carcamo wrote
What I need is some help with the procedure in postgres, I have searched
in
google, but I dont know how to do it, the goal is perform the first insert
and then
Carlos Carcamo wrote
SELECT myProcedure(product_id, p_description, price, qty, store_id,
store_description );
waiting for a response from procedure, maybe true or false.
Note that forcing the procedure to return false instead of simply throwing
an error is going to degrade performance. If
Moshe Jacobson wrote
I have the following query:
[...]
The EXPLAIN ANALYZE for this query indicates that all of the tables in the
query are being joined despite the fact that they are not needed at all.
Why is this?
Without definitions of all the tables involved, as well as knowing what
hamann.w wrote
Hi,
on a server running 8.4 I observe that, since a while, the pg_attribute
table is growing
enormously.
Soon after reloading I have one file
ls -s 1249
1048580 1249
a day later this is
1048580 1249
1048580 1249.1
1048580 1249.10
1048580 1249.11
1048580 1249.12
Arup Rakshit wrote
I have a below table :
yelloday_development=# select id,workplace_ids,team_ids from
reporting_groups ;
itishree sukla wrote
Our application is crashing...
It really does help to be more specific with statements of this nature. In
particular:
1) exactly how many idle connections (and are any of them idle in
transaction)? You ran the queries - provide the numbers reported to you.
2) how many
Дмитрий Голубь wrote
For example I have table addresses and usually I want 2 things:
1. Find id of bad addresses.
2. Check if this address is good or bad.
For this I write two plpgsql functions
1. find_all_bad_addresses
2. is_bad_address(id)
These functions will duplicate logic of each
Ken Tanzer wrote
Hi. I've got lots of tables with start and end dates in them, and I'm
trying to learn how to work with them as date ranges (which seem
fantastic!). I've noticed that the daterange() function seems to create
ranges with an inclusive lower bound, and an exclusive upper bound.
Tim Uckun wrote
The database is functioning fine now but I am anticipating a much higher
workload in the future. The table in question is probably going to have a
few million rows per day inserted into it when it gets busy, if it gets
very busy it might be in the tens of millions per day but
Rebecca Clarke-2 wrote
create view vw_employee as
select * from employees
where ((age(joining_date::date) like '5 years%') or
(age(joining_date::date) like '10 years%') )
This does not give the correct answer to the poster's question - the LIKE
with a trailing % will pick up non-round
Alexander Reichstadt wrote
Hi,
I try to do what seems to be totally simple, but it fails. If I query a
view that contains renamed columns without any qualifier like
SELECT * FROM myview
it displays everything. If however I do
SELECT reanmedviewcolumn FROM myview
It tells me
Kynn Jones wrote
On Tue, Jul 1, 2014 at 12:36 PM, Francisco Olarte lt;
folarte@
gt;
wrote:
Without seeing your actual commands, it's difficult to know about the
schema stuff...
Well, the actual commands is what the original question was asking for,
since I really don't know how to
Tom Lane-2 wrote
Rich Shepard lt;
rshepard@
gt; writes:
... my question is what do I need to do so when a user is added to the
system the local administrator and the group specified during the
createuser
process, she or he can be granted that group's privileges?
I might be
Adrian Klaver-4 wrote
On 07/02/2014 12:48 AM, Arup Rakshit wrote:
What is the data at your disposal when trying to select the current
year? If it is a timestamp, simply use date_part:
=# select date_part('year', now());
date_part
---
2014
(1 row)
--
Michael
It is
Rich Shepard wrote
On Wed, 2 Jul 2014, David G Johnston wrote:
or if you want to do it as part of creating a new user:
CREATE ROLE new_management_user
[other stuff here]
IN ROLE management;
http://www.postgresql.org/docs/9.2/interactive/sql-createrole.html
David,
I'll have
Steve Crawford wrote
On 07/02/2014 09:55 AM, Arup Rakshit wrote:
SELECT users.gender,count(*) as
participant,avg(daily_action_answers.value) as
value
FROM users INNER JOIN daily_action_answers ON
daily_action_answers.user_id = users.id
INNER JOIN measures ON measures.id =
afonit wrote
genderparticipants answer1_avg answer2_avg
n 3 12 3
m 5 4 12
f 71523
Are you sure this is
Arup Rakshit wrote
SELECT users.gender,count(*) as participant,
case when daily_action_answers.measure_id = 1 then
avg(daily_action_answers.value) end as cpd,
case when daily_action_answers.measure_id = 2 then
avg(daily_action_answers.value) end as other
FROM users INNER JOIN
Edson Richter wrote
I would like to construct a query, to be used in graphics (Pie Chart, to
be more precise), and to avoid having 500 slices, I would like to make a
query that returns the top ten, and then all the rest summed.
I know I can do it by using some repetition, like:
a) Assume
madhu_d wrote
Hi,
I am writing a C program to access a PostgreSQL database, where
I add a column if it doesn't exists in the table
or, update the column, if the column already exits.
Please suggest how to work with the conditional statements.
Thanks!
N.B. I wrote the following:
Aram Fingal wrote
listen_addresses='*' parameter doesn't belong in pg_hba.conf
This parameter should be in postgresql.conf
Thanks. That was really unclear, at least the way I followed the online
documentation:
http://www.postgresql.org/docs/9.1/static/auth-pg-hba-conf.html
David G Johnston wrote
Aram Fingal wrote
listen_addresses='*' parameter doesn't belong in pg_hba.conf
This parameter should be in postgresql.conf
Thanks. That was really unclear, at least the way I followed the online
documentation:
http://www.postgresql.org/docs/9.1/static
Don Brown wrote
Thank you and appreciate any comments/suggestions
Host the database in a shared-tenent arrangement and have your application
remotely connect to it or to an intermediary application that will then
perform the work and simply deal with input/output with the client.
Dave
--
Huang, Suya wrote
Hi,
We have the requirement of using the data type tsvector [], however, I
didn't find out how to:
* Use array operator together with tsquery operator
o I have to unnest the array and then do query like ts@@
to_tsquery('ipod')
You will have to create some
John McKown wrote
I have a table which has some raw data in it. By raw, I mean it is
minimally processed from a log file. Every week, I update this table by
processing the weekly log using awk to create a psql script file which
looks similar to:
COPY rawdata FROM STDIN;
lines created
Arup Rakshit wrote
ORDER BY parent_id, id ?
François Beausoleil
parent_id .. But why order_by.. I thought I need to group by
parent child email
1 2
test1@
3 email
The word group as you have used it can mean:
Generate a single record for each
Nick Guenther wrote
Dear List,
I am interested in replicating views of my data in real time to a
frontend visualizer. I've looked around, and it seems that most
applications in this direction write some ad-hoc json-formatter that
spits out exactly the columns it is interested in. I
Ferrell, Denise CTR NSWCDD, Z11 wrote
Using PostgreSQL 9.3 on Linux Red-Hat platform.
Does PostgreSQL allow editable views?
Please do not cross-post, even within these mailing lists. In almost all
cases it is sufficient to post to -general. And besides, this is not really
a server
Frank Pinto wrote
I personally like Francisco Olarte's approach. Hashbang's don't support
arguments well (
http://stackoverflow.com/questions/4303128/how-to-use-multiple-arguments-with-a-shebang-i-e)
and being able to put JUST psql as the command to execute the script
doesn't scale across
Sergey Konoplev-2 wrote
Hi,
PostgreSQL 9.2.7, Linux 2.6.32
Several days ago I found one of my servers out of connections,
pg_stat_activity showed that everything was waiting for the DROP/ALTER
INDEX transaction (see the record 2 below), that, as I guess, was
waiting for the function call
Sergey Konoplev-2 wrote
On Fri, Jul 18, 2014 at 6:15 PM, David G Johnston
lt;
david.g.johnston@
gt; wrote:
query | BEGIN;
SET LOCAL statement_timeout TO 1000;
DROP INDEX public.idx1;
ALTER INDEX public.idx2 RENAME TO idx1;
END;
If I read this correctly you sent the entire
rameshparnanditech wrote
Hello,
in postgres function (id bigint ),the following code not return
any value with artNums ,But when i do select statement ony it's output
the
values with out include cursor
i.e,cursor problem ..?
please let me know what should i do to getvalues
Derek Poon-2 wrote
As an exercise, I've written the following query to implement
[FizzBuzz][1].
SELECT COALESCE(fizz || buzz, fizz, buzz, '' || n) AS fizzbuzz
FROM (
SELECT n0 + 3 * n3 + 9 * n9 + 27 * n27 + 81 * n81 AS n
FROM
lucas.g...@gmail.com wrote
I've rolled postgres to 'production', so box is in prod, but the
applications aren't active yet.
When I rolled the new box I'm seeing 2 log files:
postgresql--MM-dd_hhmmss.log
AND
postgresql-9.3-main.log
The 'main' log doesn't appear to be used, however
Albe Laurenz *EXTERN* wrote
Also, I think that your method is vulnerable to race conditions:
If somebody else increments the sequence between the INSERT and
SELECT lastval() you'd get a wrong value.
Uh, no. It returns that last value issued in the same session - which is
race-proof.
On Tuesday, July 22, 2014, rob stone-2 [via PostgreSQL]
ml-node+s1045698n5812384...@n5.nabble.com wrote:
On Tue, 2014-07-22 at 13:32 +, Albe Laurenz wrote:
rob stone wrote:
I have a question on the right/correct practice on using the serial
col's sequence for insert.
Best
seamusabshere wrote
At READ COMMITTED isolation level, you should always get an atomic insert
or update [1]
I just think there are a lot of non-concurrent bulk loading and
processing workflows that could benefit from the performance advantages
of upsert (one trip to database).
Bulk load
seamusabshere wrote
On 7/23/14 6:03 PM, John R Pierce wrote:
On 7/23/2014 1:45 PM, Seamus Abshere wrote:
What if we treat atomicity as optional?
atomicity is not and never will be optional in PostgreSQL.
I'm wondering what a minimal definition of upsert could be - possibly
separating
hi David,
My argument lives and dies on the assumption that UPSERT would be useful
even if it was (when given with no options) just a macro for
UPDATE db SET b = data WHERE a = key;
IF NOT found THEN
INSERT INTO db(a,b) VALUES (key, data);
END IF;
Adding things like
Nick Guenther wrote
As you said, attaching the trigger to a view is useless (for
BEFORE/AFTER, which I'm interested in, also only works on statement
level changes, which I would rather not have to deal with). I tried
attaching my trigger to a materialized view and found that postgres
Mike Christensen-2 wrote
I'm curious why this query returns 0:
SELECT 'AAA' ~ '^A{,4}$'
Yet, this query returns 1:
SELECT 'AAA' ~ '^A{0,4}$'
Is this a bug with the regular expression engine?
Apparently since {,#} is not a valid regexp expression the engine simply
interprets it as a
Rebecca Clarke-2 wrote
Thanks for the reply. Here's the EXPLAIN output of a couple of the
queries:
Typically you want to provide EXPLAIN ANALYZE output so that comparisons
between planner estimates and reality can be made.
David J.
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Bill Moran wrote
On Fri, 25 Jul 2014 17:20:57 +0100
Rebecca Clarke lt;
r.clarke83@
gt; wrote:
Note that this is speculation on my part, but the
point being that if those columns are usually as narrow as your
examples you might want to try changing them to VARCHAR(50) or
something and
François Beausoleil wrote
Hi all,
NOTE: Also posted to StackOverflow:
http://stackoverflow.com/questions/24997131/pairwise-array-sum-aggregate-function
I have a table with arrays as one column, and I want to sum the array
elements together:
create table regres(a int[] not null);
Ramesh T wrote
Hi,
when i ran below statement its working fine..
select string_agg(part_id::text,':') from part;
But,
SELECT tab_to_largeStringcheck(cast(string_agg(part_id::text,':')as
t_varchar2_tab)) FROM part
[image: Inline image 1]
when i ran like
SELECT
Jon Rosebaugh wrote
This takes over eight minutes to run. Is this the expected behavior when
joining on CTE expressions?
I realize I haven't given the full schema/metadata/explain output as
explained in the Slow Query Questions wiki page
You should at least provide some explain a/o explain
Seref Arikan wrote
select 1,test_empty_row(1);
SELECT 1, (SELECT test_empty_row(1)) AS func_result
You can also adjust the function to either return the result of the query OR
RETURN NULL if no results were found. i.e., do not use RETURN QUERY
David J.
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Emir Ibrahimbegovic wrote
Hello all,
I've got two queries which should produce the same results but they don't
for some reason, please consider these :
SELECT date_trunc('day', payments.created_at) day,
SUM(payments.amount) AS sum_id FROM payments
INNER JOIN users ON users.id =
Adam Mackler-5 wrote
(Cross-posted to StackOverflow:
http://stackoverflow.com/questions/25041100/postgresql-user-defined-operator-function-what-parameter-type-to-use-for-uncast
)
I'm defining my own domain and a equality operator.
Next I create an equality operator to do case-insensitive
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