fts3

Verifying sqlite FTS (Full Text Search) syntax, and how to do a single term NOT search

Is there a way to determine if a MATCH query sent to an fts3 table in sqlite is valid? Currently, I don't find out if the expression is invalid until I try to run it, which makes it a little tricky. I'd like to report to the user that the syntax is invalid before even trying to run it. I'm using sqlite with the C api. Additionally, do...

iPhone App With SQLITE FTS3 Xcode Release Build Not Working

My iPhone application uses SQLITE's FTS3 functions (specifically MATCH and OFFSET). These are essential to my optimized searching algorithm. I implemented FTS3 by including three SQLITE source files, namely sqlite3.c, sqlite3.h and sqlite3ext.h in my project, under a group named SQLite. I removed from the Frameworks group my previous ref...

how to install sqlite3-ruby gem with FTS3 install on snow leapord

I am working on a pet project, for searching file contents, my intention is install sqlite3 with ruby binding s with FTS3 for full text search. though after considerable experimentation was able to get sqlite3 compiled from source for ./configure FTS3=on sudo make install clean how to get sqlite3-ruby installed with FTS3 ...

Detect the FTS3 extension in SQLite3

What is the SQLite query to detect if the FTS3 extension module is installed? Or is it possible to get a list of installed extensions with an SQLite3 query? It has to work with pysqlite2. I know that I can get the list of tables using SELECT * FROM sqlite_master, I'd like to get something similar for the list of extensions. I also know ...

SQLite fts3: search for a string in a column

Is there any way to search for a particular string in a column? I want to search like SELECT * from email_fts WHERE email_fts MATCH 'to:"[email protected]" OR from:"[email protected]"' Thanks in advance, Manoj ...

SQLite FTS3 inconsitent performance

A table with ~100k rows. SELECT word FROM entries WHERE word MATCH '"chicken *"'; 17 results in 46ms SELECT word FROM entries WHERE word MATCH '"chicken f*"'; 2 results in 5793ms Why such a huge drop? ...

SQLite FTS3 sumulate LIKE somestrin%

I'm writing a dictionary app and need to do the usual word suggesting while typing. LIKE somestrin% is rather slow (~1300ms on a ~100k row table) so I've turned to FTS3. Problem is, I haven't found a sane way to search from the beginning of a string. Now I'm performing a query like SELECT word, offsets(entries) FROM entries WHERE wo...

To get FTS3 support in SQLite3 using Ruby, do you have to manually compile sqlite?

I've got a web app where I'd like to user FTS3 functionality of SQLite3. I've got the SQLite3-ruby v1.2.5 gem installed. I'd like to have FTS3 support, and I know, due to trying to create an FTS3 table, that it doesn't come with it. Do I need to compile the gem/sqlite3 myself in order to get this support? Is there a seprate gem I shoul...

I need to alter a sqlite3 table to add FTS3

I need the ability to add FTS3 to a sqlite3 table after it was created, not as it is created. Does anyone know the ALTER syntax to accomplish this? ...

Why doesn't the OFFSETS function respect docid condition?

Why does SELECT OFFSETS(Data) FROM Data WHERE docid = 1 AND Data MATCH 'term' take same time as SELECT OFFSETS(Data) FROM Data WHERE Data MATCH 'term' And how can I make it work fast, i.e. just for one record? Thanks! ...

How to setup fts3 with python2.7 on windows ?

I built sqlite with fts3 enabled from source using mingw, and it works from the sqlite3 command line program. However fts3 doesn't work in python. Replacing the sqlite3.dll in python27\dlls with the newly built dll from sqlite doesn't work. I still get the error: sqlite3.OperationalError: no such module: fts3 ...

How do I escape the - character in SQLite FTS3 queries?

I'm using Python and SQLAlchemy to query a SQLite FTS3 (full-text) store and I would like to prevent my users from using the - as an operator. How should I escape the - so users can search for a term containing the - (enabled by changing the default tokenizer) instead of it signifying "does not contain the term following the -"? ...

How to exclude column from FTS3 table search

I have such table: CREATE VIRTUAL TABLE t USING FTS3(hidden, text1, text2) I would like user to be able to searh over 'text1' and 'text2' columns, so the query is SELECT docid FROM t WHERE t MATCH ? And possible requests are: SELECT docid FROM t WHERE t MATCH 'foo' SELECT docid FROM t WHERE t MATCH 'text1:foo OR text2:bar' Q: ho...

How do I instruct SQLAlchemy to create SQLite FTS3 tables on create_all()?

I would like SQLAlchemy to create an FTS3 table during .create_all(). What special options do I need to add so it knows to CREATE VIRTUAL TABLE ... USING FTS3(tokenizer=...)? ...

SQLite FTS3 installation, unable to create virtual table after installation

I a bit new to sqllite lite and linux commands so any help would be greatly appreciated! Is there something I am missing? After the sqlite-3.7.3 installation, for some reason I am still still not seeing the new version (sqlite-3.7.3) when checking with macbook-pro:sqlite-3.7.3 scott$ which sqlite3 /usr/bin/sqlite3 macbook-pro:sqli...

sqlite3 using fts3 create table in my mac terminal and how to use it in iphone xcode project?

Hi I am trying to use fts in my sqlite database, i have created a database and inserted ,all the records ,using sqlite query in my mac terminal, and used it in my iphone xcode project ,its worked fine. now i am trying to integrate fts3 using the links http://pp.hillrippers.ch/blog/2009/08/08/Static+SQLite+Library+with+Unicode+Support...