rt-thread/components/external/SQLite-3.8.1/test/tkt3461.test

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# 2008 October 25
#
# 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.
#
# This file implements tests to verify that ticket #3461 has been
# fixed.
#
# $Id: tkt3461.test,v 1.4 2009/06/05 17:09:12 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
####################################
####################################
# REMOVE THESE TWO LINES:
####################################
####################################
#finish_test
#return
do_test tkt3461-1.1 {
execsql {
CREATE TABLE t1(a, b);
INSERT INTO t1 VALUES(1, 2);
}
} {}
do_test tkt3461-1.2 {
execsql { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 }
} {1 3}
do_test tkt3461-1.3 {
# explain { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 OR b_plus_one }
# execsql { PRAGMA vdbe_trace = 1; PRAGMA vdbe_listing=1 }
execsql { SELECT a, b+1 AS b_plus_one FROM t1 WHERE a=1 OR b_plus_one }
} {1 3}
do_test tkt3461-2.1 {
execsql {
SELECT a, b+1 AS b_plus_one
FROM t1
WHERE CASE WHEN a=1 THEN 1 ELSE b_plus_one END
}
} {1 3}
do_test tkt3461-3.1 {
execsql {
CREATE TABLE t2(c, d);
INSERT INTO t2 VALUES(3, 4);
}
# execsql { PRAGMA vdbe_trace = 1; PRAGMA vdbe_listing=1 }
execsql {
SELECT a, b+1 AS b_plus_one, c, d
FROM t1 LEFT JOIN t2
ON (a=c AND d=b_plus_one)
}
} {1 3 {} {}}
finish_test