473,745 Members | 2,116 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

tsearch2 question...

Hello,

I have a quick question regarding tsearch2, hopefully this is an okay
place to ask because I couldn't find a tsearch2-specific mailing list..

Anyways, when the field which is indexed using tsearch2 is displayed in
it's entirety I want the searched keywords to be highlighted, just as in
a headline except that the entire document gets displayed instead of just
a summary of it..

In order for this to work well, it would seem that I need the same code
path as that used to generate the headline to begin with, otherwise
differences in stemming/etc could cause mis-matches...

My thought was to do:

SELECT bodytext_id,hea dline(bodytext,
to_tsquery('def ault','SEARCH_K EYS'),'
MaxWords=999999 999,MinWords=99 9999999,ShortWo rd=0') FROM some_table WHERE
bodytext_id=SOM E_ID

Does this seem like a 'reasonable' way to do this?... In not is there a
better way that you can think of?...

Thanks!

- GReg
---------------------------(end of broadcast)---------------------------
TIP 8: explain analyze is your friend

Nov 12 '05 #1
1 1148


Net Virtual Mailing Lists wrote:
Hello,

I have a quick question regarding tsearch2, hopefully this is an okay
place to ask because I couldn't find a tsearch2-specific mailing list..

Anyways, when the field which is indexed using tsearch2 is displayed in
it's entirety I want the searched keywords to be highlighted, just as in
a headline except that the entire document gets displayed instead of just
a summary of it..

In order for this to work well, it would seem that I need the same code
path as that used to generate the headline to begin with, otherwise
differences in stemming/etc could cause mis-matches...

My thought was to do:

SELECT bodytext_id,hea dline(bodytext,
to_tsquery('def ault','SEARCH_K EYS'),'
MaxWords=999999 999,MinWords=99 9999999,ShortWo rd=0') FROM some_table WHERE
bodytext_id=SOM E_ID

Does this seem like a 'reasonable' way to do this?... In not is there a
better way that you can think of?...


Big value of MinWord is right way.
--
Teodor Sigaev E-mail: te****@sigaev.r u
---------------------------(end of broadcast)---------------------------
TIP 2: you can get off all lists at once with the unregister command
(send "unregister YourEmailAddres sHere" to ma*******@postg resql.org)

Nov 12 '05 #2

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

Similar topics

13
2878
by: Nigel J. Andrews | last post by:
This will be a little vague, it was last night and I can't now do the test in that db (see below) so can't give the exact wording. I seem to remember a report a little while ago about tsearch v2 causing unexpected backend exit messages with 7.3.4 and now I'm getting similar messages unpredictably and I can't find the thread in the archives either. What I did was install tsearch2 using share/contrib/tsearch2.sql, which placed everything...
1
1764
by: psql-mail | last post by:
I have applied the recent tsearch2 patch and recompiled the tsearch2 module but I am still experiencing the same backend crashes as I previously described. Thanks for any help, Mat GDB output:
0
446
by: konf | last post by:
Well, now I tried to compile with tsearch2. I do in src direcotry: ../configure then change into contrib/tsearch2 and do make (as I read in manual) and I got:
9
2003
by: Pavel Stehule | last post by:
Hello I try tsearch2 within czech environment. It is works fine, but I have two questions. 1. I have words "se", "ve" in my czech stop words. But I get this words in result. Why? Have I problem with my configuration? tsearch2=# select * from ts_debug('jmenuji se Pavel Stěhule a bydlím ve Skalici.');
2
3693
by: Fischer Ulrich | last post by:
Hi I have a problem with the restoring of a database which uses tsearch2. I made a backup as discribed in 'tsearch-v2-intro' on the tsearch2 page. Now i'm trying to restore it into a testdatabase. The problem is, that the entries of the relations 'pg_ts_cfg', 'pg_ts_cfgmap', 'pg_ts_dict' and 'pg_ts_parser' are not correctly restored. I get errors like: psql:restoretest.out:28223: ERROR: copy: line 1, Cannot insert a duplicate key...
0
2110
by: Markus Wollny | last post by:
Hi! Sorry to bother you, but I just don't know how to get tsearch2 configured correctly for my setup. I've got a 7.4.3 database-cluster initdb'ed with de_DE@euro as locale, the database is with Unicode encoding. I made and installed contrib/tsearch2 after installing the dump/reload-patch http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/regprocedure_7.4.patch.gz as advised by the docs. So far everything is looking good, I have...
3
4600
by: Marcel Boscher | last post by:
Hello everybody, i tried to "J.U.S.T" install the FullTextSearchTool tsearch2 under the guidiance of : http://www.sai.msu.su/~megera/postgres/gist/tsearch/V2/ <http://www.sai.msu.su/%7Emegera/postgres/gist/tsearch/V2/> and i'm almost losing my mind... <runningagainstwallheadsfirst> after i installed postgre which works fine i change to the folder /contrib/tsearch2/
2
3339
by: Net Virtual Mailing Lists | last post by:
Hello, If I have a rule like this: CREATE OR REPLACE RULE sometable_update AS ON UPDATE TO table2 DO UPDATE cache SET updated_dt=NULL WHERE tablename='sometable'; CREATE OR REPLACE RULE sometable_insert AS ON INSERT TO table2 DO UPDATE cache SET updated_dt=NULL WHERE tablename='sometable'; CREATE OR REPLACE RULE sometable_delete AS ON DELETE TO table2 DO UPDATE
1
2511
by: Dawid Kuroczko | last post by:
I'm trying to use tsearch2 with database which is in 'UNICODE' encoding. It works fine for English text, but as I intend to search Polish texts I did: insert into pg_ts_cfg('default_polish', 'default', 'pl_PL.UTF-8'); (and I updated other pg_ts_* tables as written in manual). However, Polish-specific chars are being eaten alive, it seems. I.e. doing select to_tsvector('default_polish', body) from messages; results in list of words but...
0
9346
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth. The Art of Business Website Design Your website is...
1
9279
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
0
9214
tracyyun
by: tracyyun | last post by:
Dear forum friends, With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
1
6763
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms. Adolph will...
0
6057
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert into image. Globals.ThisAddIn.Application.ActiveDocument.Select();...
0
4573
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
1
3287
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
2
2759
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.
3
2195
bsmnconsultancy
by: bsmnconsultancy | last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...

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.