Great, thanks!
2014-02-26 0:11 GMT-03:00 Richard Hipp-3 [via SQLite]
ml-node+s1065341n74140...@n5.nabble.com:
On Tue, Feb 25, 2014 at 1:11 PM, nobre [hidden
email]http://user/SendEmail.jtp?type=nodenode=74140i=0
wrote:
Hi! Given this schema:
create table q (id integer primary key
Hi! Given this schema:
create table q (id integer primary key, idLevel integer);
create table level (id integer primary key);
insert into q values(1, 1);
insert into q values(2, 1);
insert into q values(3, 1);
insert into level values(1);
When running this query:
select p.* FROM
q as p
inner
What is the output of EXPLAIN QUERY PLAN your query ?
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Unfortunately FTS is only able to do prefix search, not sufix.
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I've been impressed by sqliteexpert Personal Edition (for Windows)
I haven't found a great one for OSX yet.
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Android does have SQLite builtin, however it is under a rather large amount
of abstractions that does not correlate directly to the SQLite API, making
it difficult to port code between platforms. Another issue is, each
manufacturer / device / firmware version have a different build of SQLite,
some
Android does have SQLite builtin, however it is under a rather large amount
of abstractions that does not correlate directly to the SQLite API, making
it difficult to port code between platforms. Another issue is, each
manufacturer / device / firmware version have a different build of SQLite,
some
http://www.sqlite.org/limits.html
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If the optional ESCAPE clause is present, then the expression following the
ESCAPE keyword must evaluate to a string consisting of a single character.
This character may be used in the LIKE pattern to include literal percent or
underscore characters. The escape character followed by a percent
With the default tokenizer your index would split such an input (quot'ed)
into 'quot' and 'ed' , you wouldn't get a hit for a phrase such as
quot''ed.
If you use a custom tokenizer , you CAN use in your terms/queries, however
it won't work for phrases, only for single tokens
From the fts3aux.c
There was a somehow recent change in the snippets algorithm, it used to
return snippets from a number of columns in a single row if there were
multiple matches, separated with Now, it will try to find a fragment
of the row that contains ALL search terms, using snippets from the other
columns
What is the query , and what error do you encounter ? SQLite does support
UNION and UNION ALL
Regards
nobre
David Hubbard-4 wrote:
We are looking at using SqlLite from an access application, but we have
run
into troubles executing a query that has a UNION.
Does SqlLite support Unions? Any
Is there any chance you are storing a \0 char inside the xml ?
Jacob A. Camp wrote:
Hello,
I've been looking into an issue that a few of our programmers have looked
at as well and it left us all wondering. Basically, our database has a
VARCHAR column that has an XML file written to it
Comment from the source:
** TODO: Strangely, it is not possible to associate a column specifier
** with a quoted phrase, only with a single token. Not sure if this was
** an implementation artifact or an intentional decision when fts3 was
** first implemented. Whichever it was, this
Hi, I'm studying the indexing mechanism of FTS3/4, I can pretty much
understand how doclists, terms, segments are created and stored, but one
thing I can't grasp is about updating and deleting docs and keeping up the
index up to date. From the source comments:
[quote]
** Since we're using a
Looks promising!
With the me triggers mentioned in
http://www.sqlite.org/src/artifact/fdc666a70d5257a64fee209f97cf89e0e6e32b51
, it can be a really time saver. Its awful having to deal with two tables
that store a single, split up entity, also the inability to create
additional indexes on the
Have you tried setting journal_mode to the default DELETE option ?
Without atommic commits, maybe your inserts are going to disk one by one
instead of in a single step, when commiting your transactions, thus slowing
down disk writes.
Fabian-40 wrote:
2011/11/2 Black, Michael (IS)
I do not
Here are the opcodes generated for each operation using the EXPLAIN command
sqlite explain select offsets(pasta_text), DataPasta from pasta_text where
past
a_text match 'andamento*';
addr opcode p1p2p3p4 p5 comment
-
Stepping through execution for queries with and without GROUP BY clauses, I
could see that, when preparing a query containing a Group By clause, the
parser assigns a TK_AGG_COLUMN type to first argument of the offsets() and
snippet() functions, thus breaking out of sqlite3VtabOverloadFunction()
I experience the same situation on the following query:
select
offsets(pasta_text),
snippet(pasta_text),
DataPasta
from pasta_text
WHERE pasta_text match 'andamento*'
group by DataPasta
order by DataPasta
Which desired output would be all matches grouped by date (the full query is
joined from
20 matches
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