| # 2012 Sept 27 |
| # |
| # The author disclaims copyright to this source code. In place of |
| # a legal notice, here is a blessing: |
| # |
| # May you do good and not evil. |
| # May you find forgiveness for yourself and forgive others. |
| # May you share freely, never taking more than you give. |
| # |
| #*********************************************************************** |
| # This file implements regression tests for SQLite library. The |
| # focus of this file is testing that the optimizations that disable |
| # ORDER BY clauses when the natural order of a query is correct. |
| # |
| |
| |
| set testdir [file dirname $argv0] |
| source $testdir/tester.tcl |
| set ::testprefix orderby2 |
| |
| # Generate test data for a join. Verify that the join gets the |
| # correct answer. |
| # |
| do_test 1.0 { |
| db eval { |
| CREATE TABLE t1(a INTEGER PRIMARY KEY, b); |
| INSERT INTO t1 VALUES(1,11), (2,22); |
| CREATE TABLE t2(d, e, UNIQUE(d,e)); |
| INSERT INTO t2 VALUES(10, 'ten'), (11,'eleven'), (12,'twelve'), |
| (11, 'oneteen'); |
| } |
| } {} |
| |
| do_test 1.1a { |
| db eval { |
| SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e; |
| } |
| } {eleven oneteen} |
| do_test 1.1b { |
| db eval { |
| EXPLAIN QUERY PLAN |
| SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e; |
| } |
| } {~/ORDER BY/} |
| |
| do_test 1.2a { |
| db eval { |
| SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e; |
| } |
| } {eleven oneteen} |
| do_test 1.2b { |
| db eval { |
| EXPLAIN QUERY PLAN |
| SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e; |
| } |
| } {~/ORDER BY/} |
| |
| do_test 1.3a { |
| db eval { |
| SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e; |
| } |
| } {ten 11 eleven 11 oneteen 11 twelve 11} |
| do_test 1.3b { |
| db eval { |
| EXPLAIN QUERY PLAN |
| SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e; |
| } |
| } {~/ORDER BY/} |
| |
| # The following tests derived from TH3 test module cov1/where34.test |
| # |
| do_test 2.0 { |
| db eval { |
| CREATE TABLE t31(a,b); CREATE INDEX t31ab ON t31(a,b); |
| CREATE TABLE t32(c,d); CREATE INDEX t32cd ON t32(c,d); |
| CREATE TABLE t33(e,f); CREATE INDEX t33ef ON t33(e,f); |
| CREATE TABLE t34(g,h); CREATE INDEX t34gh ON t34(g,h); |
| |
| INSERT INTO t31 VALUES(1,4), (2,3), (1,3); |
| INSERT INTO t32 VALUES(4,5), (3,6), (3,7), (4,8); |
| INSERT INTO t33 VALUES(5,9), (7,10), (6,11), (8,12), (8,13), (7,14); |
| INSERT INTO t34 VALUES(11,20), (10,21), (12,22), (9,23), (13,24), |
| (14,25), (12,26); |
| SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 |
| WHERE c=b AND e=d AND g=f |
| ORDER BY a ASC, c ASC, e DESC, g ASC; |
| } |
| } {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11} |
| do_test 2.1 { |
| db eval { |
| SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 |
| WHERE c=b AND e=d AND g=f |
| ORDER BY +a ASC, +c ASC, +e DESC, +g ASC; |
| } |
| } {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11} |
| do_test 2.2 { |
| db eval { |
| SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 |
| WHERE c=b AND e=d AND g=f |
| ORDER BY a ASC, c ASC, e ASC, g ASC; |
| } |
| } {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14} |
| do_test 2.3 { |
| optimization_control db cover-idx-scan off |
| db cache flush |
| db eval { |
| SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34 |
| WHERE c=b AND e=d AND g=f |
| ORDER BY a ASC, c ASC, e ASC, g ASC; |
| } |
| } {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14} |
| optimization_control db all on |
| db cache flush |
| |
| |
| |
| finish_test |