Add some tests with NULL and composite predicates.

Author: wenjun-zhu

core/sql/regress/core/EXPECTED001.SB

@@ -14,7 +14,7 @@
 >>invoke t001t1;
 
 -- Definition of Trafodion table TRAFODION.SCH.T001T1
--- Definition current  Mon Aug 27 15:59:38 2018
+-- Definition current  Fri Nov 16 17:12:39 2018
 
   (
     SYSKEY                           LARGEINT NO DEFAULT NOT NULL NOT DROPPABLE
@@ -32,7 +32,7 @@
 >>invoke $$TEST_SCHEMA$$.t001ut1;
 
 -- Definition of Trafodion table TRAFODION.SCH.T001UT1
--- Definition current  Mon Aug 27 15:59:39 2018
+-- Definition current  Fri Nov 16 17:12:40 2018
 
   (
     SYSKEY                           LARGEINT NO DEFAULT NOT NULL NOT DROPPABLE
@@ -445,13 +445,75 @@ A
      .0
 
 --- 1 row(s) selected.
->>cqd pcode_opt_level 'on';
+>>
+>>select case when cast(null as int) > 0 and 2>1 then 1/0 else 0 end from dual;
 
---- SQL operation complete.
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
+>>select case when cast(null as int) > 0 or 2>1 then 1/0 else 0 end from dual;
+
+*** ERROR[8419] An arithmetic expression attempted a division by zero.
+
+--- 0 row(s) selected.
+>>
+>>select case when cast(null as int) > 0 and 2>3 then 1/0 else 0 end from dual;
+
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
+>>select case when cast(null as int) > 0 or 2>3 then 1/0 else 0 end from dual;
+
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
 >>
 >>-- PCODE way
+>>cqd pcode_opt_level 'on';
+
+--- SQL operation complete.
 >>select case when cast(null as int) > 0 then 1/0 else 0 end from dual;
 
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
+>>
+>>select case when cast(null as int) > 0 and 2>1 then 1/0 else 0 end from dual;
+
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
+>>select case when cast(null as int) > 0 or 2>1 then 1/0 else 0 end from dual;
+
+*** ERROR[8419] An arithmetic expression attempted a division by zero.
+
+--- 0 row(s) selected.
+>>
+>>select case when cast(null as int) > 0 and 2>3 then 1/0 else 0 end from dual;
+
+(EXPR) 
+-------
+
+     .0
+
+--- 1 row(s) selected.
+>>select case when cast(null as int) > 0 or 2>3 then 1/0 else 0 end from dual;
+
 (EXPR) 
 -------
 

core/sql/regress/core/TEST001

@@ -131,11 +131,23 @@ select (case a when 1 then 1 when 2 then 2 else null end) from t001t1;	-- ok
 -- clause way
 cqd pcode_opt_level 'off';
 select case when cast(null as int) > 0 then 1/0 else 0 end from dual;
-cqd pcode_opt_level 'on';
+
+select case when cast(null as int) > 0 and 2>1 then 1/0 else 0 end from dual;
+select case when cast(null as int) > 0 or 2>1 then 1/0 else 0 end from dual;
+
+select case when cast(null as int) > 0 and 2>3 then 1/0 else 0 end from dual;
+select case when cast(null as int) > 0 or 2>3 then 1/0 else 0 end from dual;
 
 -- PCODE way
+cqd pcode_opt_level 'on';
 select case when cast(null as int) > 0 then 1/0 else 0 end from dual;
 
+select case when cast(null as int) > 0 and 2>1 then 1/0 else 0 end from dual;
+select case when cast(null as int) > 0 or 2>1 then 1/0 else 0 end from dual;
+
+select case when cast(null as int) > 0 and 2>3 then 1/0 else 0 end from dual;
+select case when cast(null as int) > 0 or 2>3 then 1/0 else 0 end from dual;
+
 select a from t001t1 where null is null;			-- ok
 select a from t001t1 where null is not null;			-- ok (0 rows)