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Side by Side Diff: third_party/sqlite/src/test/analyze4.test

Issue 901033002: Import SQLite 3.8.7.4. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: Chromium changes to support SQLite 3.8.7.4. Created 5 years, 10 months ago
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1 # 2011 January 04 1 # 2011 January 04
2 # 2 #
3 # The author disclaims copyright to this source code. In place of 3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing: 4 # a legal notice, here is a blessing:
5 # 5 #
6 # May you do good and not evil. 6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others. 7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give. 8 # May you share freely, never taking more than you give.
9 # 9 #
10 #*********************************************************************** 10 #***********************************************************************
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31 INSERT INTO t1 SELECT a+4, b FROM t1; 31 INSERT INTO t1 SELECT a+4, b FROM t1;
32 INSERT INTO t1 SELECT a+8, b FROM t1; 32 INSERT INTO t1 SELECT a+8, b FROM t1;
33 INSERT INTO t1 SELECT a+16, b FROM t1; 33 INSERT INTO t1 SELECT a+16, b FROM t1;
34 INSERT INTO t1 SELECT a+32, b FROM t1; 34 INSERT INTO t1 SELECT a+32, b FROM t1;
35 INSERT INTO t1 SELECT a+64, b FROM t1; 35 INSERT INTO t1 SELECT a+64, b FROM t1;
36 ANALYZE; 36 ANALYZE;
37 } 37 }
38 38
39 # Should choose the t1a index since it is more specific than t1b. 39 # Should choose the t1a index since it is more specific than t1b.
40 db eval {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=5 AND b IS NULL} 40 db eval {EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE a=5 AND b IS NULL}
41 } {0 0 0 {SEARCH TABLE t1 USING INDEX t1a (a=?) (~1 rows)}} 41 } {0 0 0 {SEARCH TABLE t1 USING INDEX t1a (a=?)}}
42 42
43 # Verify that the t1b index shows that it does not narrow down the 43 # Verify that the t1b index shows that it does not narrow down the
44 # search any at all. 44 # search any at all.
45 # 45 #
46 do_test analyze4-1.1 { 46 do_test analyze4-1.1 {
47 db eval { 47 db eval {
48 SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t1' ORDER BY idx; 48 SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t1' ORDER BY idx;
49 } 49 }
50 } {t1a {128 1} t1b {128 128}} 50 } {t1a {128 1} t1b {128 128}}
51 51
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102 INSERT INTO t2 VALUES(5, 'aBc', 'aBc', 'aBc'); 102 INSERT INTO t2 VALUES(5, 'aBc', 'aBc', 'aBc');
103 INSERT INTO t2 VALUES(6, 'aBC', 'aBC', 'aBC'); 103 INSERT INTO t2 VALUES(6, 'aBC', 'aBC', 'aBC');
104 INSERT INTO t2 VALUES(7, 'aBc ', 'aBc ', 'aBc '); 104 INSERT INTO t2 VALUES(7, 'aBc ', 'aBc ', 'aBc ');
105 INSERT INTO t2 VALUES(8, 'aBC ', 'aBC ', 'aBC '); 105 INSERT INTO t2 VALUES(8, 'aBC ', 'aBC ', 'aBC ');
106 ANALYZE; 106 ANALYZE;
107 SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t2' ORDER BY idx; 107 SELECT idx, stat FROM sqlite_stat1 WHERE tbl='t2' ORDER BY idx;
108 } 108 }
109 } {t2a {8 4} t2b {8 2} t2c {8 1} t2c2 {8 4} t2c3 {8 2}} 109 } {t2a {8 4} t2b {8 2} t2c {8 1} t2c2 {8 4} t2c3 {8 2}}
110 110
111 finish_test 111 finish_test
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