mirror of
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37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
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CREATE TABLE t10(a, b);
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SELECT a, b FROM t10 ORDER BY a;
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PRAGMA cache_size = 5;
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SELECT a, b FROM t10 ORDER BY a;
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SELECT * FROM sqlite_master ORDER BY sql;
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CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c);
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WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<50)
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-- increase to 5000 for actual test data ----^^
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INSERT INTO t1(a,b,c) SELECT x, random()%5000, random()%5000 FROM c;
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CREATE TABLE t2(d,e,f);
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WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<500)
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-- increase to 50000 for actual test data -----^^^
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INSERT INTO t2(d,e,f) SELECT
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NULLIF(0, random()%2), random()%5000, random()%5000
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FROM c;
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ANALYZE;
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UPDATE sqlite_stat1 SET stat='50000' WHERE tbl='t2';
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UPDATE sqlite_stat1 SET stat='5000' WHERE tbl='t1';
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ANALYZE sqlite_schema;
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EXPLAIN QUERY PLAN
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SELECT a FROM t1 JOIN t2
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WHERE a IN (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20)
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AND a=CASE WHEN d IS NOT NULL THEN e ELSE f END
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ORDER BY a;
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