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