473,378 Members | 1,106 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes to post your question to a community of 473,378 software developers and data experts.

Problem with create index



Hmmm... am i doing anything really silly?

tradein_clients=# CREATE INDEX profile_master2 on profile_master (lower( btrim(email) ) );
ERROR: parser: parse error at or near "(" at character 61
tradein_clients=#
Regds
mallah.

---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match

Nov 12 '05 #1
2 1696
On Tue, 11 Nov 2003, Rajesh Kumar Mallah wrote:
Hmmm... am i doing anything really silly?
Functional indexes on 7.3 and earlier only allow a function over one or
more columns (which would disallow the below as a function over a function
over a column). The usual workaround would be to make an immutable
function that does both functions on its argument something like:

create function lower_btrim(text) returns text as 'select
lower(btrim($1));' language 'sql' immutable;
create index profile_master2 on profile_master(lower_btrim(email));

In 7.4 I believe the below should work.
tradein_clients=# CREATE INDEX profile_master2 on profile_master (lower( btrim(email) ) );
ERROR: parser: parse error at or near "(" at character 61


---------------------------(end of broadcast)---------------------------
TIP 5: Have you checked our extensive FAQ?

http://www.postgresql.org/docs/faqs/FAQ.html

Nov 12 '05 #2
On Tuesday 11 Nov 2003 2:00 pm, Stephan Szabo wrote:
On Tue, 11 Nov 2003, Rajesh Kumar Mallah wrote:
Hmmm... am i doing anything really silly?
Functional indexes on 7.3 and earlier only allow a function over one or
more columns (which would disallow the below as a function over a function
over a column). The usual workaround would be to make an immutable
function that does both functions on its argument something like:

create function lower_btrim(text) returns text as 'select
lower(btrim($1));' language 'sql' immutable;
create index profile_master2 on profile_master(lower_btrim(email));

Thanks for the work around


In 7.4 I believe the below should work.
tradein_clients=# CREATE INDEX profile_master2 on profile_master (lower(
btrim(email) ) ); ERROR: parser: parse error at or near "(" at character
61


Yes it does work

template1=# CREATE INDEX profile_master2 on t_a(lower(btrim(email)));
CREATE INDEX
template1=#
template1=# CREATE unique INDEX profile_master3 on t_a(lower(btrim(email)));
CREATE INDEX
template1=#
Regds
Mallah.

---------------------------(end of broadcast)---------------------------
TIP 4: Don't 'kill -9' the postmaster

Nov 12 '05 #3

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

0
by: Guy Deprez | last post by:
Hi, i'm having a problem to create indexes. STEP 1 ----------- Connection is OK (you can find the string at the end of the message) Table ("Couleurs") creation is OK STEP 2. Index Creation
6
by: Rajesh Kumar Mallah | last post by:
Hi, I face the following problem in transferring data from pgsql 7.3.4 to pgsql 7.4 RC1 . I am piping the output of pg_dumpall from 7.3 to 7.4 running on different port. The problem is there...
4
by: Fan Ruo Xin | last post by:
Hi, I have been watching MDC for a long time ... I have seen it from INDEX-SCAN to INDEX ONLY for the DISTINCT (block index columns) operator .... But the Elapsed time shows MDC still run slower....
4
by: Jagdip Singh | last post by:
Hi all, I am getting this problem. Script and error are below connect to jagdip user db2inst1 using ibmdb2 @ set current sqlid='db2inst1' @ drop function salesamount @ drop table...
20
by: Development - multi.art.studio | last post by:
Hello everyone, i just upgraded my old postgres-database from version 7.1 to 7.4.2. i dumped out my 7.1 database (with pg_dump from 7.1) as an sql-file with copy-commands and to one file using...
7
by: Salvador | last post by:
Hi, I am using WMI to gather information about different computers (using win2K and win 2K3), checking common classes and also WMI load balance. My application runs every 1 minute and reports...
0
by: Spacen Jasset | last post by:
I am running postgresql at version 8.1 on a windows xp desktop machine. I then loaded 40 million rows into a table of 6 varchar fields ( The sum total length of a row is on average about 100...
4
by: Laurence Breeze | last post by:
I wonder if anyone can help ... Today I tried to create another non-clustered index on a table. This failed as I apparently already had 249 non-clustered indexex on the table. Looking at the...
15
RMWChaos
by: RMWChaos | last post by:
In my ongoing effort to produce shorter, more efficient code, I have created a "chicken and egg" / "catch-22" problem. I can think of several ways to fix this, none of them elegant. I want my code...
3
by: mearvk | last post by:
I am unable to get Xerces to write out attributes from a struct which I am able to print out and verify is correct. The structs are defined below as is subsection of the output. int...
0
by: Faith0G | last post by:
I am starting a new it consulting business and it's been a while since I setup a new website. Is wordpress still the best web based software for hosting a 5 page website? The webpages will be...
0
by: ryjfgjl | last post by:
In our work, we often need to import Excel data into databases (such as MySQL, SQL Server, Oracle) for data analysis and processing. Usually, we use database tools like Navicat or the Excel import...
0
by: taylorcarr | last post by:
A Canon printer is a smart device known for being advanced, efficient, and reliable. It is designed for home, office, and hybrid workspace use and can also be used for a variety of purposes. However,...
0
by: aa123db | last post by:
Variable and constants Use var or let for variables and const fror constants. Var foo ='bar'; Let foo ='bar';const baz ='bar'; Functions function $name$ ($parameters$) { } ...
0
by: ryjfgjl | last post by:
If we have dozens or hundreds of excel to import into the database, if we use the excel import function provided by database editors such as navicat, it will be extremely tedious and time-consuming...
0
by: ryjfgjl | last post by:
In our work, we often receive Excel tables with data in the same format. If we want to analyze these data, it can be difficult to analyze them because the data is spread across multiple Excel files...
1
by: nemocccc | last post by:
hello, everyone, I want to develop a software for my android phone for daily needs, any suggestions?
1
by: Sonnysonu | last post by:
This is the data of csv file 1 2 3 1 2 3 1 2 3 1 2 3 2 3 2 3 3 the lengths should be different i have to store the data by column-wise with in the specific length. suppose the i have to...
0
by: Hystou | last post by:
There are some requirements for setting up RAID: 1. The motherboard and BIOS support RAID configuration. 2. The motherboard has 2 or more available SATA protocol SSD/HDD slots (including MSATA, M.2...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.