Searching the text of a collection of documents or free text fields in a database to find those containing a word or combination of words.

learn more… | top users | synonyms

0
votes
1answer
393 views

SQL Server Full Text Search Engine is not returning consistent results

I'm working on an application that makes use of the Full Text Search Engine from SQL Server. In order to convert the user input into readable parameters for SQL, i'm using This very useful FTS query ...
1
vote
1answer
158 views

Install Full Text search on existing instance

We have an existing sql server 2012 instance but without full text search. before I add the feature, I want to know if it stops or restart the instance since it is for production. thanks in advance.
3
votes
2answers
416 views

Slow fulltext search due to wildly innacurate row estimates

Fulltext queries against this database (storing RT tickets) seem to be taking a very long time to execute. The attachments table (containing the fulltext data) is about 15GB. The database schema is ...
7
votes
2answers
153 views

Can I get the union of the a Postgres fulltext index?

I have a fulltext index on a table. Is it possible to retrieve the set of terms used in the index (gist or gin)? With weights if possible? To clarify: If I have the following table: create table ...
1
vote
2answers
203 views

Mysql might have too many indexes

I am using the php framework Laravel for my application, together with mysql 5.6, in order to have full-text search with innoBD. But I am not sure if I have too many indexes. My application allows ...
0
votes
1answer
25 views

How to create a citation/quote from a Postgres text field?

I have a database with a lot of text and I want to find the surrounding text for a word that I am searching for i.e. If I search this text for "text" I should get something like (and more consistent ...
0
votes
1answer
195 views

Ranking not correct in sql server 2012 full text search

I am having a table like below: CREATE TABLE [dbo].[test_table]( [id] [int] IDENTITY(1,1) NOT NULL, [name] [varchar](50) NULL, [area] [varchar](50) NULL, [designation] [varchar](100) ...
1
vote
1answer
302 views

SQL Server Specific term full text search is not working

I'm trying to perform an specific term full-text search in SQL Server. It looks like the way to do it is by wrapping the keywords in double quotes, which I'm doing in my app: Query = "\"" + ...
0
votes
1answer
818 views

What is WITH QUERY EXPANSION MODE in MySQL Fulltext Search

MATCH (col1,col2,...) AGAINST (expr [search_modifier]) search_modifier: { IN NATURAL LANGUAGE MODE | IN NATURAL LANGUAGE MODE WITH QUERY EXPANSION | IN BOOLEAN MODE | WITH QUERY ...
0
votes
1answer
255 views

SQL Server CONTAINS ignores single quote before asterix [closed]

Let's say I have table NamesTable, which has text index on Name column DECLARE @String2 NVARCHAR(20) = '"SomeName''*"' SELECT * FROM NamesTable WHERE CONTAINS(Name, @String2) What does single quote ...
1
vote
1answer
49 views

Index that mimics full-text-index

I have a database that is retrieving information quite slowly, I asked a question and was told to use full-text-indexing, this worked, but now we switched over to a .sdf file and Sql Server Compact ...
1
vote
1answer
404 views

Removing some English token words (such as “are” or “or” etc.) from the system stoplist of full text search?

One of our table has full text catalog on it. It contains some data in a language other than English which makes some words such as "are", "or" useful. There is no stop list defined but these words ...
3
votes
2answers
4k views

sql server full text search - fuzzy searching?

Is there a way to configure fuzzy searches in sql server full text search. Meaning if I search for a term called POWDER, I must get matches (i.e. strings) which contain any variations of it within an ...
5
votes
2answers
693 views

SQL Server Full Text Search - .rtf files incorrectly indexed by rtf tags

I've set up a full-text index on my SQL Server DB on a varbinary(max) column. I have a type column specified, which contains the extension of the file, such a ".doc", ".pdf" etc. However, I have ...
1
vote
0answers
95 views

PostgreSQL query slow when using tsvector and ORDER BY despite having index

Running on a large database (around 1.5G) The following query takes about 70 seconds to run, SELECT x FROM DBText x WHERE x.status = 2 AND x.publishedTime < 4574590406397 AND x.service = ...
5
votes
1answer
209 views

Fulltext stoplist replication

In MS SQL Server 2008 R2 there is replication of table with fulltext index on it. But stoplist that is associated with replicated fulltext index doesn't replicate. Is there any possibility to ...
0
votes
0answers
76 views

Getting wrong results from fulltext search in PostgreSQL

This is the query which I am running. The keyword "exhausted" is present only in one of the rows but I am getting all 3 rows. How to avoid the rows where the keyword is not present? DDL: CREATE ...
2
votes
0answers
363 views

Full-Text Index menu option not appearing in SQL Server Management Studio AND error when right clicking a table

I am using SQL Server Management Studio Version 11.0.3128.0 and SQL Server 2014 12.0.2361 Web Edition. I have successfully created a Full Text Catalog following these instructions: Cannot use a ...
1
vote
1answer
125 views

Elasticsearch and product characteristics

I have a small question about elasticsearch. Let's say I have a database with products to sell, like an ecommerce. I know that elasticsearch can help me to find the best product with, for instance a ...
0
votes
1answer
984 views

Does full text search works with characters?

I have successfully created an FTS index on a column where we have stored the name of medicines e.g: Amoxicillin 250mg capsules 21 capsule Verapamil 160mg tablets 100 tablet When I search with the ...
5
votes
1answer
829 views

Full-text search with german umlauts

I created a table using German (Germany) as the Full-text language, in the settings I tried setting accent sensitivity to both sensitive and insensitive. I, however, get following odd results. The ...
1
vote
2answers
321 views

Mysql fulltext index search returning weird result

I have ingredient table. I want all those recipes which have certain ingredients. Below is my table structure. Table(ingredient) - Applied fulltext index on ingredient column. ...
0
votes
1answer
136 views

Fulltext search not working properly

I have pers table and applied combine fulltext index on (prenom, nom) fields. Below are data in that table. persID prenom nom (pers table) -------------------------------- 116 te te ...
0
votes
2answers
193 views

SQL Server: Enable Full-Text Search on model Database

I want to use the Microsoft Data-Tier Application framework and its associated .Net API to manage the schema of several SQL Server databases, including the model database. However, when I try deploy ...
4
votes
2answers
280 views

Fulltext search limiting users possibilities

We have a web site with a search box. The search uses a fulltext index column. However, we just cant feed the text the user has input into this stored procedure. CREATE PROCEDURE [dbo].[SearchPages] ...
0
votes
0answers
32 views

preventing FullTextSearch from using wildcards

I am using FTS in a sql2008 sql server and had a user complain about some searches breaking. after root cause analysis we found only searches like U.S.A. fail because FTS tries to run wildcard matches ...
0
votes
0answers
100 views

Full text catalog missing a keyword

We have a full text catalog on one of our databases but one keyword does not work. e.g: select * from table where name = 'jon' -- result set returns as expected select * from table where ...
1
vote
1answer
233 views

HTML column in a full text index?

Using sql server management studio, I want to create a full text index where a certain field is treated as html, tags should be ignored and umlaut-codes should be taken into account. How can I do ...
1
vote
1answer
194 views

“Wrong affix file formate for flag” while loading dictionaries from LibreOffice in PostgreSQL 9.3

Trying to get good TEXT SEARCH results out of PostgreSQL in English, German and Dutch made that I downloaded proofing tools of LibreOffice (tried of version 4.3 and 3.3) and iSpell. I placed the files ...
0
votes
0answers
135 views

Where to download (Dutch) Postgresql Fulltext Search dictionaries

PostgreSQL enables me to configure what dictionaries I would like to use when preforming a fulltext search. The following types of dictionaries can be set: stop ispell simple snowball synonym ...
2
votes
2answers
398 views

Fuzzy Matching with Postgresql 9.3

Right now I am using ts_rank (with ts_vector and ts_query) to search strings for relevance. While this is doing a great job for me so far. I was hoping to work in a bit of fuzzieness into the ...
0
votes
0answers
133 views

Trying to search using MATCH and AGAINST keyword

// Working $query="SELECT * FROM vehicle WHERE MATCH (body_type) AGAINST ('$selected_btype' IN BOOLEAN MODE) OR MATCH(location) AGAINST ('$selected_location' IN BOOLEAN MODE)"; //Not working ...
1
vote
0answers
76 views

Skipping stopwords (and indexing small words) for one fulltext index only, in MySQL

I have a rather odd situation where it might be preferable to not use stopwords and to have a value of ft_min_word_len equal to 1. The index in question would be dealing with only a few words per row ...
0
votes
0answers
115 views

innodb fulltext Table handler out of memory

I am running mariadb 10 and have a large innodb table with a fulltext index. When searching I am regularly getting this error ERROR 128 (HY000): Table handler out of memory Is there some way I ...
1
vote
0answers
48 views

Row level security and full text searching

How do you approach the problem of resolving access permissions when matching tens of thousands of users with tens of millions of documents containing unstructured data? How do you even build and ...
2
votes
1answer
65 views

Which database technologies to consider for a data search application?

I'm designing an application that only does read queries to some database tables (it's a kind of search application); the queried data is updated at night by the system (so speed is less critical, ...
1
vote
1answer
483 views

MySQL FullText search on string shorter than 3 chars returns no rows

I have a MySQL table with some addresses in it. Let's say I have the following 2 rows: "10 Fake Street" "101 Fake Street" I'm trying to use fulltext search with MATCH() AGAINST(). I have set ...
0
votes
1answer
151 views

SQL Server 2008 R2 Express Silent Install - FullText Service Not working

I'm trying to build an installer for an app that installs SQL Server 2008 R2 ADV with fulltext already enabled, but couldn't sort it out. It must support Windows XP, so that's the first OS I'm ...
4
votes
1answer
209 views

Combining full-text and scalar index

Let's say we have a database of 12 million names and addresses that need to be searchable using full-text, but each row contains an integer value too, let's say COMPANYID. The table contains around ...
1
vote
1answer
2k views

Multi-Column Full Text Search Going Very Slow

I have a full text index on a table articles for the columns content, title and keywords When doing the search on each of the columns, like so select count(1) from articles where ...
2
votes
0answers
41 views

How do I get information about how an index set was created in Oracle?

A long time ago I created a CTXCAT index with an INDEX SET using ctx_ddl.create_index_set and ctx_ddl.add_index but forgot to save the DDL anywhere and now I need to recreate this index on another ...
0
votes
0answers
70 views

Database that supports fast prefix matching

I have a list of potentially millions of url's, e.g. twitter.com/user1, facebook.com/user2. For every incoming other url (10K/s) I want to find the longest prefix match among all the stored url's. ...
2
votes
1answer
1k views

SQL Server 2008: What are the English Word Breakers?

I'm trying to replicate what SQL Server 2008 is doing when generating full-text indexes, but I'm having a hard time finding a list of which characters SQL Server 2008 considers to be word breakers. ...
5
votes
1answer
272 views

Full Text Search Term Casing Affects Results

I have been experiencing a full text problem when searching using CONTAINS. I have the full text catalog accent sensitive setting set to false. The table contains following rows: Microsoft C# ...
0
votes
1answer
56 views

Which triplestores have support for full-text search

Which RDF triplestores support full-text search and what performance can be expected from them. I am assuming that they will have to extend SPARQL in some way as the only way that I can think of for ...
4
votes
3answers
931 views

Full Text Search With PostgreSQL

i have a table with this rows: Stickers ------------------------------------------------------ ID | Title |Keywords (ts_vector) ------------------------------------------------------ ...
5
votes
2answers
4k views

Postgres full text search with multiple columns, why concat in index and not at runtime?

I've come across full text search in postgres in the last few days, and I am a little confused about indexing when searching across multiple columns. The postgres docs talk about creating a ts_vector ...
0
votes
0answers
239 views

How can I decrease FULLTEXT initialization time?

I'm trying to decrease execution time of the a query. Using SHOW PROFILE, FULLTEXT initialization takes about 0.3, which is too high. Other values are at normal level. How can I decrease FULLTEXT ...
2
votes
0answers
121 views

postgres - generating documents for full text search taking forever and eating up disk space

We use PostgreSQL and Django-Haystack with Elasticsearch for search on our service, and were thinking of switching to Postgres's built in full text search because of various annoyances using a NoSQL ...
0
votes
1answer
491 views

Mixed search in multiple columns

I have a table which has a particular column of type JSON, where some user's contact information are stored. I can alter the table and add new columns with cached values to increase search performance ...