fts3

问题 Sqlite3's full text search facility - FTS3 - allows to use MATCH operator for fast full-text search: SELECT ItemId FROM docs WHERE docs.text MATCH 'linux' However, it does not support OR operator anywhere in an SQL query where there's a MATCH (source: 1, 2): SELECT ItemId FROM docs WHERE docs.text MATCH 'linux' OR column=value error: unable to use function MATCH in the requested context (Not to be confused with OR operator in the FTS3 query itself, i.e. SELECT ItemId FROM docs WHERE docs.text

问题 I'm trying to create a dbase solution for email threading. When I receive an email.. I want to know if this email belongs to an existing thread. So I match the subject ie subject = 'cool bro' matches 're: cool bro' and i also want to match the sender and receiver pair ie (sender = 'A@gmail.com' and receiver = 'B@gmail.com') OR (sender ='B@gmail.com' and receiver = 'A@gmail.com') for those exact cases.. this query worked fine (see more details here): (SELECT COUNT(search_email.threadID) FROM

问题 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+for+the+iPhone/ http://regularrateandrhythm.com/regular-rate-rhythm-blog/sqlite3-fts-in-IOS4.html http://answers.oreilly.com/topic/1955-how-to-use-full-text-search

问题 I've downloaded the latest SQLite 3.7.15.2 shell (Win32) and tried to execute one of the FTS examples exactly as it is written at http://sqlite.org/fts3.html#section_3 -- Virtual table declaration CREATE VIRTUAL TABLE docs USING fts3(); -- Virtual table data INSERT INTO docs(docid, content) VALUES(1, 'a database is a software system'); INSERT INTO docs(docid, content) VALUES(2, 'sqlite is a software system'); INSERT INTO docs(docid, content) VALUES(3, 'sqlite is a database'); -- Return the

问题 I have the following SQLite query which works great on my local machine: SELECT * FROM ftdata WHERE ftdata MATCH 'phrase1:this AND phrase2:that' This doesn't seem to return the same resultset on my Android device as it does on my desktop. It returns far less results on Android. This query appears to return the correct results on both: SELECT * FROM ftdata WHERE ftdata MATCH 'phrase1:this phrase2:that' However I would ideally like to combine AND and OR queries instead of being forced to use

问题 I tried asking the question php - Is there a binary package for php5-sqlite3 with fts3 enabled? - Ask Ubuntu - Stack Exchange; but no dice there - so I'll try here again in different words: how can one enable FTS3 under SQLite3 for php on an Ubuntu Linux server? I would want to enable FTS3 for a Mediawiki using Sqlite - and I typically get the " no such module: fts3 " error. I have found: how to enable sqlite3 for php? - Stack Overflow - where it is recommended that php5-sqlite3 is removed

问题 I am experiencing an incorrect rowid value with sqlite and fts3. Basically, the first two rows are inserted and the rowId is 1 and 2 respectively. The third insert however returns 4 instead of 3. I dropped the following log message in my contentprovider when inserting a row: SQLiteDatabase database = databaseHelper.getWritableDatabase(); long rowId = database.insert(NOTES_TABLE, Note.NOTE, values); Log.d("NoteProvider", "RowId inserted was " + rowId); The output of that log message is: 02-21

问题 I have read about many posts asking whether the SQLite based full-text search can be done in Android, and all the answers point out that the built-in SQLite of Android does not allow custom tokenizer. The default tokenizer considers the words separated by space or other signs, but Asian words (like Chinese) need its special tokenizer, but Android does not allow adding custom one. The posts I read were years ago. Is there any update in recent Android versions? I just searched and did not find

问题 I already have an application that uses the SQLite database and a listadapter. I am trying to update my application to use the Full Text Search capabilities but am struggling to find an answer to a problem. Basically when I create the virtual table with the necessary _id column, the database converts it to a text field and it is no longer an autoincrement primary key. How would I go about using the FTS3 capabilities with a listadapter? 回答1: When using FTS3 sqlite ignores datatypes and

问题 I have table with almost 200k entries. When I tried search with LIKE, it was very slow. Now I decided to use FTS. So I created two indexes where search will be held. Then I created fts virtual table. `CREATE TABLE [search_eng] ( [id] INTEGER PRIMARY KEY AUTOINCREMENT, [entry_id] INTEGER, [re_value] TEXT, [ke_value] TEXT, [g_value] TEXT); CREATE INDEX idx_se_re ON search_eng (re_value); CREATE INDEX idx_se_gv ON search_eng (g_value); CREATE VIRTUAL TABLE search_eng_fts USING fts3(id, entry_id,