mirror of
https://github.com/tursodatabase/libsql.git
synced 2024-12-15 20:20:20 +00:00
ad79ef48a2
* add tests * add bench
54 lines
1.6 KiB
Plaintext
54 lines
1.6 KiB
Plaintext
|
|
CREATE TABLE t1(t1_id INTEGER PRIMARY KEY, t1_title TEXT);
|
|
CREATE TABLE t2(t2_id INTEGER PRIMARY KEY, t2_title TEXT);
|
|
CREATE TABLE t3(t3_id INTEGER PRIMARY KEY, t3_title TEXT);
|
|
|
|
INSERT INTO t1 (t1_id, t1_title) VALUES (888, 'ABCDEF');
|
|
INSERT INTO t2 (t2_id, t2_title) VALUES (999, 'ABCDEF');
|
|
INSERT INTO t3 (t3_id, t3_title) VALUES (999, 'ABCDEF');
|
|
|
|
|
|
SELECT t1_title, t2_title
|
|
FROM t1 LEFT JOIN t2
|
|
WHERE
|
|
t2_id = (SELECT t3_id FROM
|
|
( SELECT t3_id FROM t3 WHERE t3_title=t1_title LIMIT 500 )
|
|
)
|
|
|
|
|
|
CREATE TABLE [Beginnings] (
|
|
[Id] INTEGER PRIMARY KEY AUTOINCREMENT,[Title] TEXT, [EndingId] INTEGER
|
|
);
|
|
CREATE TABLE [Endings] (Id INT,Title TEXT,EndingId INT);
|
|
INSERT INTO Beginnings (Id, Title, EndingId) VALUES (1, 'FACTOR', 18);
|
|
INSERT INTO Beginnings (Id, Title, EndingId) VALUES (2, 'SWIMM', 18);
|
|
INSERT INTO Endings (Id, Title, EndingId) VALUES (1, 'ING', 18);
|
|
|
|
|
|
SELECT
|
|
SrcWord, Beginnings.Title
|
|
FROM
|
|
(SELECT 'FACTORING' AS SrcWord UNION SELECT 'SWIMMING' AS SrcWord )
|
|
LEFT JOIN
|
|
Beginnings
|
|
WHERE Beginnings.Id= (
|
|
SELECT BeginningId FROM (
|
|
SELECT SrcWord, B.Id as BeginningId, B.Title || E.Title As Connected
|
|
FROM Beginnings B LEFT JOIN Endings E ON B.EndingId=E.EndingId
|
|
WHERE Connected=SrcWord LIMIT 1
|
|
)
|
|
)
|
|
|
|
|
|
DROP TABLE IF EXISTS t1;
|
|
CREATE TABLE t1(i INT PRIMARY KEY, a, b);
|
|
INSERT INTO t1 VALUES(NULL,'one','i');
|
|
CREATE INDEX i1a ON t1(a);
|
|
CREATE INDEX i1b ON t1(b);
|
|
SELECT (SELECT 1
|
|
FROM (SELECT 1 FROM t1 WHERE a=1 OR b='i')
|
|
WHERE a='o'
|
|
OR b IN (SELECT a=('b' IN (SELECT 'a'))))
|
|
FROM t1;
|
|
|