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| 1 # 2012 November 9 | |
| 2 # | |
| 3 # The author disclaims copyright to this source code. In place of | |
| 4 # a legal notice, here is a blessing: | |
| 5 # | |
| 6 # May you do good and not evil. | |
| 7 # May you find forgiveness for yourself and forgive others. | |
| 8 # May you share freely, never taking more than you give. | |
| 9 # | |
| 10 #*********************************************************************** | |
| 11 # This file implements regression tests for SQLite library. The | |
| 12 # focus of this file is testing the query planner to make sure it | |
| 13 # is making good planning decisions. | |
| 14 # | |
| 15 | |
| 16 | |
| 17 set testdir [file dirname $argv0] | |
| 18 source $testdir/tester.tcl | |
| 19 set ::testprefix whereE | |
| 20 | |
| 21 do_execsql_test 1.1 { | |
| 22 CREATE TABLE t1(a,b); | |
| 23 INSERT INTO t1 VALUES(1,10), (2,20), (3,30), (2,22), (3, 33); | |
| 24 INSERT INTO t1 SELECT * FROM t1; | |
| 25 INSERT INTO t1 SELECT * FROM t1; | |
| 26 INSERT INTO t1 SELECT * FROM t1; | |
| 27 INSERT INTO t1 SELECT * FROM t1; | |
| 28 INSERT INTO t1 SELECT * FROM t1; | |
| 29 INSERT INTO t1 SELECT * FROM t1; | |
| 30 INSERT INTO t1 SELECT * FROM t1; | |
| 31 INSERT INTO t1 SELECT * FROM t1; | |
| 32 INSERT INTO t1 SELECT * FROM t1; | |
| 33 INSERT INTO t1 SELECT * FROM t1; | |
| 34 ALTER TABLE t1 ADD COLUMN c; | |
| 35 UPDATE t1 SET c=a*rowid+10000; | |
| 36 CREATE INDEX t1ab ON t1(a,b); | |
| 37 | |
| 38 CREATE TABLE t2(x,y); | |
| 39 INSERT INTO t2 VALUES(4,44),(5,55),(6,66),(7,77); | |
| 40 INSERT INTO t2 SELECT x+4, (x+4)*11 FROM t2; | |
| 41 INSERT INTO t2 SELECT x+8, (x+8)*11 FROM t2; | |
| 42 INSERT INTO t2 SELECT x+16, (x+16)*11 FROM t2; | |
| 43 INSERT INTO t2 SELECT x+32, (x+32)*11 FROM t2; | |
| 44 INSERT INTO t2 SELECT x+64, (x+32)*11 FROM t2; | |
| 45 ALTER TABLE t2 ADD COLUMN z; | |
| 46 UPDATE t2 SET z=2; | |
| 47 CREATE UNIQUE INDEX t2zx ON t2(z,x); | |
| 48 | |
| 49 EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; | |
| 50 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
| 51 do_execsql_test 1.2 { | |
| 52 EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; | |
| 53 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
| 54 do_execsql_test 1.3 { | |
| 55 ANALYZE; | |
| 56 EXPLAIN QUERY PLAN SELECT x FROM t1, t2 WHERE a=z AND c=x; | |
| 57 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
| 58 do_execsql_test 1.4 { | |
| 59 EXPLAIN QUERY PLAN SELECT x FROM t2, t1 WHERE a=z AND c=x; | |
| 60 } {/.*SCAN TABLE t1.*SEARCH TABLE t2.*/} | |
| 61 | |
| 62 finish_test | |
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