A few more test cases for the IS operator.

FossilOrigin-Name: f397c8622ae5a36a71f81d9f2549ca314005ece5

manifest

@@ -1,5 +1,5 @@
-C More\stest\scases.\s\sRemove\ssome\sinvalid\stestcase()\smacros.\s\sRearrange\ssome\scode\nfor\simproved\stestability.
-D 2015-05-14T13:41:22.643
+C A\sfew\smore\stest\scases\sfor\sthe\sIS\soperator.
+D 2015-05-14T14:03:21.962
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in edfc69769e613a6359c42c06ea1d42c3bece1736
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -1082,7 +1082,7 @@ F test/trace2.test f5cb67ad3bc09e0c58e8cca78dfd0b5639259983
 F test/trans.test 6e1b4c6a42dba31bd65f8fa5e61a2708e08ddde6
 F test/trans2.test 62bd045bfc7a1c14c5ba83ba64d21ade31583f76
 F test/trans3.test 91a100e5412b488e22a655fe423a14c26403ab94
-F test/transitive1.test 03f532954f46cdf5608f7766bff0b0c52bf2a7cd
+F test/transitive1.test 875a9f0097a15b30a62431d183f989364d5accac
 F test/trigger1.test dc47573ac79ffe0ee3eecaa517d70d8dacbccd03
 F test/trigger2.test 5cd7d69a7ba1143ee045e4ae2963ff32ae4c87a6
 F test/trigger3.test aa640bb2bbb03edd5ff69c055117ea088f121945
@@ -1121,11 +1121,11 @@ F test/varint.test ab7b110089a08b9926ed7390e7e97bdefeb74102
 F test/veryquick.test 57ab846bacf7b90cf4e9a672721ea5c5b669b661
 F test/view.test f311691d696a5cc27e3c1b875cec1b0866b4ccd9
 F test/vtab1.test dbe0e9e121102d0ba365f20d126a72676aa2343f
-F test/vtab2.test 3644649aa8d1daac57fd541f6a5f914cac59203e
+F test/vtab2.test f8cd1bb9aba7143eba97812d9617880a36d247ad
 F test/vtab3.test b45f47d20f225ccc9c28dc915d92740c2dee311e
 F test/vtab4.test 942f8b8280b3ea8a41dae20e7822d065ca1cb275
 F test/vtab5.test 889f444970393c73f1e077e2bdc5d845e157a391
-F test/vtab6.test 5f5380c425e52993560ab4763db4f826d2ba7b09
+F test/vtab6.test d2986cf418dc51e7fb81d12366bea2caa8b812df
 F test/vtab7.test ae560ebea870ed04e9aa4177cc302f910faaabb5
 F test/vtab8.test e19fa4a538fcd1bb66c22825fa8f71618fb13583
 F test/vtab9.test ea58d2b95d61955f87226381716b2d0b1d4e4f9b
@@ -1258,7 +1258,7 @@ F tool/vdbe_profile.tcl 67746953071a9f8f2f668b73fe899074e2c6d8c1
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
 F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
-P d195d4a65d7184e34a2a08c3ac3db7f6c8c1c21c
-R f1988e6e31a1e471b8c207ba95b50e6f
+P b3676377b257bd8bb7fefe9c365d76cdc9e44856
+R bdc88e4814b826734527d4ac723cdd70
 U drh
-Z 903b5f8a9a56d496508b20810e19ed0d
+Z e30ac775b8d8ec0dc6dc3a554502ca78

manifest.uuid

@@ -1 +1 @@
-b3676377b257bd8bb7fefe9c365d76cdc9e44856
+f397c8622ae5a36a71f81d9f2549ca314005ece5

test/transitive1.test

@@ -66,6 +66,12 @@ do_execsql_test transitive1-301 {
    WHERE w=y AND y IS NOT NULL
    ORDER BY w;
 } {1 2 1 3 3 4 3 6 5 6 5 7}
+do_execsql_test transitive1-302 {
+  SELECT *
+    FROM t301 CROSS JOIN t302
+   WHERE w IS y AND y IS NOT NULL
+   ORDER BY w;
+} {1 2 1 3 3 4 3 6 5 6 5 7}
 do_execsql_test transitive1-310 {
   SELECT *
     FROM t301 CROSS JOIN t302 ON w=y
@@ -103,7 +109,7 @@ do_execsql_test transitive1-332 {
 } {3 4 3 6 1 2 1 3}
 
 # Ticket [c620261b5b5dc] circa 2013-10-28.
-# Make sureconstraints are not used with LEFT JOINs.
+# Make sure constraints are not used with LEFT JOINs.
 #
 # The next case is from the ticket report.  It outputs no rows in 3.8.1
 # prior to the bug-fix.
@@ -116,6 +122,16 @@ do_execsql_test transitive1-400 {
   INSERT INTO t403 VALUES(1);
   SELECT '1-row' FROM t401 LEFT JOIN t402 ON b=a JOIN t403 ON c=a;
 } {1-row}
+do_execsql_test transitive1-401 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b IS a JOIN t403 ON c=a;
+} {1-row}
+do_execsql_test transitive1-402 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b=a JOIN t403 ON c IS a;
+} {1-row}
+do_execsql_test transitive1-403 {
+  SELECT '1-row' FROM t401 LEFT JOIN t402 ON b IS a JOIN t403 ON c IS a;
+} {1-row}
+
 
 # The following is a script distilled from the XBMC project where the
 # bug was originally encountered.  The correct answer is a single row

test/vtab2.test

@@ -104,6 +104,14 @@ do_test vtab2-3.2 {
      WHERE a.rowid=1
   }
 } {main schema 0 database {} 0 {} 0 {} {} {} {} {} {} {} {} {}}
+do_test vtab2-3.3 {
+  execsql {
+    SELECT *, b.rowid
+      FROM schema a LEFT JOIN schema b ON a.dflt_value IS b.dflt_value
+                                      AND a.dflt_value IS NOT NULL
+     WHERE a.rowid=1
+  }
+} {main schema 0 database {} 0 {} 0 {} {} {} {} {} {} {} {} {}}
 
 do_test vtab2-4.1 {
   execsql {
@@ -153,4 +161,3 @@ ifcapable fts3 {
 
 
 finish_test
-

test/vtab6.test

@@ -233,6 +233,11 @@ do_test vtab6-2.4 {
     SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
   }
 } {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
+do_test vtab6-2.4.1 {
+  execsql {
+    SELECT * FROM t1 LEFT JOIN t2 ON t1.a IS t2.d
+  }
+} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
 do_test vtab6-2.5 {
   execsql {
     SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1