AryaWu/sqlite

1# 2012 April 022#3# The author disclaims copyright to this source code.  In place of4# 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# The tests in this file were used while developing the SQLite 4 code. 12#13set testdir [file dirname $argv0]14source $testdir/tester.tcl15set testprefix tkt-385a5b56b916 17do_execsql_test 1.0 { 18  CREATE TABLE t1(x, y);19  INSERT INTO t1 VALUES(1, NULL);20  INSERT INTO t1 VALUES(2, NULL);21  INSERT INTO t1 VALUES(1, NULL);22}23 24do_execsql_test 1.1 { SELECT DISTINCT x, y FROM t1 } {1 {} 2 {}}25do_execsql_test 1.2 { CREATE UNIQUE INDEX i1 ON t1(x, y) }26do_execsql_test 1.3 { SELECT DISTINCT x, y FROM t1 } {1 {} 2 {}}27 28 29#-------------------------------------------------------------------------30 31do_execsql_test 2.0 {32  CREATE TABLE t2(x, y NOT NULL);33  CREATE UNIQUE INDEX t2x ON t2(x);34  CREATE UNIQUE INDEX t2y ON t2(y);35}36 37do_eqp_test 2.1 { SELECT DISTINCT x FROM t2 } \38  {SCAN t2 USING COVERING INDEX t2x}39 40do_eqp_test 2.2 { SELECT DISTINCT y FROM t2 } \41  {SCAN t2 USING COVERING INDEX t2y}42 43do_eqp_test 2.3 { SELECT DISTINCT x, y FROM t2 WHERE y=10 } \44  {SEARCH t2 USING INDEX t2y (y=?)}45 46do_eqp_test 2.4 { SELECT DISTINCT x, y FROM t2 WHERE x=10 } \47  {SEARCH t2 USING INDEX t2x (x=?)}48 49 50finish_test51