Artifact
6a72785828bd48deb0187480d1f821f643503254:
# 2015-11-05
#
# 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 tests for indexes on large numeric values.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Test cases from Zsbán Ambrus:
#
do_execsql_test numindex1-1.1 {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
CREATE INDEX t1b ON t1(b);
INSERT INTO t1(a,b) VALUES(100, 356282677878746339);
INSERT INTO t1(a,b) VALUES(50, 356282677878746339.0);
INSERT INTO t1(a,b) VALUES(0, 356282677878746340);
DELETE FROM t1 WHERE a=50;
PRAGMA integrity_check;
} {ok}
do_execsql_test numindex1-1.2 {
CREATE TABLE t2(a,b);
INSERT INTO t2(a,b) VALUES('b', 1<<58),
('c', (1<<58)+1e-7), ('d', (1<<58)+1);
SELECT a, b, typeof(b), '|' FROM t2 ORDER BY +a;
} {b 288230376151711744 integer | c 2.88230376151712e+17 real | d 288230376151711745 integer |}
do_execsql_test numindex1-1.3 {
SELECT x.a || CASE WHEN x.b==y.b THEN '==' ELSE '<>' END || y.a
FROM t2 AS x, t2 AS y
ORDER BY +x.a, +x.b;
} {b==b b==c b<>d c==b c==c c<>d d<>b d<>c d==d}
finish_test