63 lines
2.0 KiB
Plaintext
63 lines
2.0 KiB
Plaintext
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# 2012 November 9
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the query planner to make sure it
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# is making good planning decisions.
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#
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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set ::testprefix whereE
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do_execsql_test 1.1 {
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CREATE TABLE t1(a,b);
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INSERT INTO t1 VALUES(1,10), (2,20), (3,30), (2,22), (3, 33);
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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INSERT INTO t1 SELECT * FROM t1;
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ALTER TABLE t1 ADD COLUMN c;
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UPDATE t1 SET c=a*rowid+10000;
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CREATE INDEX t1ab ON t1(a,b);
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CREATE TABLE t2(x,y);
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INSERT INTO t2 VALUES(4,44),(5,55),(6,66),(7,77);
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INSERT INTO t2 SELECT x+4, (x+4)*11 FROM t2;
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INSERT INTO t2 SELECT x+8, (x+8)*11 FROM t2;
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INSERT INTO t2 SELECT x+16, (x+16)*11 FROM t2;
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INSERT INTO t2 SELECT x+32, (x+32)*11 FROM t2;
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INSERT INTO t2 SELECT x+64, (x+32)*11 FROM t2;
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ALTER TABLE t2 ADD COLUMN z;
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UPDATE t2 SET z=2;
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CREATE UNIQUE INDEX t2zx ON t2(z,x);
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EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x;
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} {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/}
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do_execsql_test 1.2 {
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EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x;
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} {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/}
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do_execsql_test 1.3 {
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ANALYZE;
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EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x;
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} {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/}
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do_execsql_test 1.4 {
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EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x;
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} {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/}
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finish_test
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