Refinements to NULL processing: NULLs are indistinct for DISTINCT and UNION.
Multiplying a NULL by zero yields zero. In a CASE expression, a NULL comparison
is considered false, not NULL. With these changes, NULLs in SQLite now work
the same as in PostgreSQL and in Oracle. (CVS 600)
FossilOrigin-Name: da61aa1d238539dff9c43fd9f464d311e28d669f
diff --git a/test/expr.test b/test/expr.test
index 12d5a64..1acb062 100644
--- a/test/expr.test
+++ b/test/expr.test
@@ -11,7 +11,7 @@
# This file implements regression tests for SQLite library. The
# focus of this file is testing expressions.
#
-# $Id: expr.test,v 1.23 2002/05/30 12:27:03 drh Exp $
+# $Id: expr.test,v 1.24 2002/05/31 15:51:26 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
@@ -337,23 +337,23 @@
test_expr expr-case.2 {i1=2, i2=2} \
{CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} eq
test_expr expr-case.3 {i1=NULL, i2=2} \
- {CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} {{}}
+ {CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
test_expr expr-case.4 {i1=2, i2=NULL} \
- {CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} {{}}
+ {CASE WHEN i1 = i2 THEN 'eq' ELSE 'ne' END} ne
test_expr expr-case.5 {i1=2} \
{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} two
test_expr expr-case.6 {i1=1} \
{CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} one
test_expr expr-case.7 {i1=2} \
- {CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} {{}}
+ {CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
test_expr expr-case.8 {i1=3} \
- {CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} {{}}
+ {CASE i1 WHEN 1 THEN 'one' WHEN NULL THEN 'two' ELSE 'error' END} error
test_expr expr-case.9 {i1=3} \
{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 'error' END} error
test_expr expr-case.10 {i1=3} \
{CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' END} {{}}
test_expr expr-case.11 {i1=null} \
- {CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 3 END} {{}}
+ {CASE i1 WHEN 1 THEN 'one' WHEN 2 THEN 'two' ELSE 3 END} 3
test_expr expr-case.12 {i1=1} \
{CASE i1 WHEN 1 THEN null WHEN 2 THEN 'two' ELSE 3 END} {{}}
test_expr expr-case.13 {i1=7} \