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Questions tagged [fts4]

FTS3 and FTS4 are an SQLite virtual table modules that allows users to perform full-text searches on a set of documents.

The most common (and effective) way to describe full-text searches is "what Google, Yahoo and Altavista do with documents placed on the World Wide Web". Users input a term, or series of terms, perhaps connected by a binary operator or grouped together into a phrase, and the full-text query system finds the set of documents that best matches those terms considering the operators and groupings the user has specified.

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Change from Long to Int of `rowid` at Room Database w/ FTS4

I am updating my app with new library releases and I got an issue with my database. The released app currently using Room version 2.2.6 with FTS4. Currently having LONG for rowid. The app runs smooth and no problem. But I want to use Room version…
Rence Rei
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Room gives error: pre-packaged database has an invalid schema for FTS Table

I'm developing a dictionary app, which provides search using FTS table. The definitions come from a pre-packaged database, which has following schema: (output of .schema from sqlite3 program on Linux) sqlite> .open words.db sqlite> .schema CREATE…
Quanta
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How can I reference a searchable FTS4 table in my DAO without getting a compiler error?

The android [FTS4 documentation][1] for android states "This class will have a mapping SQLite FTS4 table in the database". Should I interpret that as a mapping SQLite FTS4 table will be generated simply by adding the annotation, or does it mean I…
Josh Hardman
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External content in FTS4 SQLITE

I have a VIEW view_for_search_unit and a FTS4 table FTS_table_search_unit. I inserted data from view_for_search_unit into the FTS table using this command: INSERT INTO FTS_table_search_unit(docId, name, description) SELECT id, name, description FROM…
Trung Pham
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Cannot create noindexed columns with in sqlite FTS table

I'm trying to create the following table with sqlite 3.8.2 CREATE VIRTUAL TABLE IF NOT EXISTS media_fts USING fts4 ( notindexed=media_id, notindexed=album_id, title, artist, …
Name is carl
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How can I create the virtual table using FTS in SQLite

How can I create the virtual table using FTS in SQLite. I have 3 tables, but I don't want to add the columns manually into the table. For example: I have the 3 tables like: t1(t1_id,t1_name), t2(t2_id,t2_name), t3(t3_id,t1_id,t2_id,t3_name) Now,…
Anjali Tunge
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Android Sqlite FTS NOT Operation

I'm trying to order a fast text search so that exact matches are first and partial matches are last. I've created a query that works in SQLiteStudio: SELECT value, 1 AS _order FROM glossfts WHERE glossfts.value MATCH 'dog' UNION SELECT value, 2 AS…
Spacehamster
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information storage in sqlite fts3/fts4

Am planning to create a simple search engine in python(python3).Going through the documentation for sqlite fts3/fts4 ,it became my choice to store the documents,since full text searches are fast.I already have a set of webpages ,with their text…
user2078134
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How to fix the error "Wrong number of arguments to function rank()" on SQLite Android using FTS4?

I have two tables: persons persons_fts. Here are the definitions of the tables: CREATE TABLE persons(name TEXT PRIMARY KEY NOT NULL, details TEXT); CREATE VIRTUAL TABLE persons_fts USING FTS4(name TEXT NOT NULL, details TEXT, context=persons); I…
harold_admin
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OperationalError: no such module: fts4

Hi I´ve tried to run a fuzzymatcher code and the error below pops up: OperationalError: no such module: fts4 Any suggestions? Thanks in advance Edit: I've already tried downloading the sqlite zip from the website and saving it in DLLs files but it…
Arleth
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SQLite: foreign key referencing data in an FTS5 shadow table

The full-text search extensions of SQLite (FTS3, FTS4, FTS5) create shadow tables. E.g., if I create FTS5-table CREATE VIRTUAL TABLE test USING fts5(textData); that will also automatically create several real (non-virtual) tables, with test_content…
Maximko
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Drop a table originally created with 'unknown tokenizer'?

I have a sqlite3 database. A single table inside this DB can't be dropped, the error message says unknown tokenizer: mm. I tried it directly with the command DROP TABLE tablename; inside the newest SQLiteSpy v1.9.11 and also within .NET code and…
PeterCo
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Using CreateTable(CreateFlags.FullTextSearch4) doesn't auto increment PK

I'm using Xamarin on Visual Studio 2015 with this SQLite Plugin: https://github.com/praeclarum/sqlite-net Here's my algorithm and explanation of the problem: public class MyModel { [PrimaryKey, AutoIncrement] public int _id { get; set; } …
Dpedrinha
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Can't access sqlite table with fts4 - java.sqlite.SQLException: no such table:?

java.sqlite.SQLException: no such table: student I get this error message when I try to show data in my JTable from my fts4 table in sqlite database. I know my code is good because it works on ordinary sqlite table. But I can't access "Virtual…
Zoka
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Search Sqlite Full Text Search Arabic without diacritics

I have a sqlite db with FTS4 search function. It has a lot of arabic text with diacritics, which are important for viewing and readability but not for search. I wish for the search to be diacritics agnostic but it seems to only find matches exactly…
sprocket12
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