Import SQLite 3.8.7.4.

third_party/sqlite/src/test/view.test

 # 2002 February 26
 #
 # 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.
 #
 #***********************************************************************
@@ skipping 440 matching lines @@
 # Ticket #1270:  Do not allow parameters in view definitions.
 #
 do_test view-12.1 {
   catchsql {
     CREATE VIEW v12 AS SELECT a FROM t1 WHERE b=?
   }
 } {1 {parameters are not allowed in views}}
 
 ifcapable attach {
   do_test view-13.1 {
-    file delete -force test2.db
+    forcedelete test2.db
     catchsql {
       ATTACH 'test2.db' AS two;
       CREATE TABLE two.t2(x,y);
       CREATE VIEW v13 AS SELECT y FROM two.t2;
     }
   } {1 {view v13 cannot reference objects in database two}}
 }
 
 # Ticket #1658
 #
@@ skipping 97 matching lines @@
 # Ticket #3539 had this crashing (see commit [5940]).
 do_test view-20.1 {
   execsql {
     DROP TABLE IF EXISTS t1;
     DROP VIEW IF EXISTS v1;
     CREATE TABLE t1(c1);
     CREATE VIEW v1 AS SELECT c1 FROM (SELECT t1.c1 FROM t1);
   }
 } {}
 
+# Ticket [d58ccbb3f1b]: Prevent Table.nRef overflow.
+db close
+sqlite3 db :memory:
+do_test view-21.1 {
+  catchsql {
+    CREATE TABLE t1(x);
+    INSERT INTO t1 VALUES(5);
+    CREATE VIEW v1 AS SELECT x*2 FROM t1;
+    CREATE VIEW v2 AS SELECT * FROM v1 UNION SELECT * FROM v1;
+    CREATE VIEW v4 AS SELECT * FROM v2 UNION SELECT * FROM v2;
+    CREATE VIEW v8 AS SELECT * FROM v4 UNION SELECT * FROM v4;
+    CREATE VIEW v16 AS SELECT * FROM v8 UNION SELECT * FROM v8;
+    CREATE VIEW v32 AS SELECT * FROM v16 UNION SELECT * FROM v16;
+    CREATE VIEW v64 AS SELECT * FROM v32 UNION SELECT * FROM v32;
+    CREATE VIEW v128 AS SELECT * FROM v64 UNION SELECT * FROM v64;
+    CREATE VIEW v256 AS SELECT * FROM v128 UNION SELECT * FROM v128;
+    CREATE VIEW v512 AS SELECT * FROM v256 UNION SELECT * FROM v256;
+    CREATE VIEW v1024 AS SELECT * FROM v512 UNION SELECT * FROM v512;
+    CREATE VIEW v2048 AS SELECT * FROM v1024 UNION SELECT * FROM v1024;
+    CREATE VIEW v4096 AS SELECT * FROM v2048 UNION SELECT * FROM v2048;
+    CREATE VIEW v8192 AS SELECT * FROM v4096 UNION SELECT * FROM v4096;
+    CREATE VIEW v16384 AS SELECT * FROM v8192 UNION SELECT * FROM v8192;
+    CREATE VIEW v32768 AS SELECT * FROM v16384 UNION SELECT * FROM v16384;
+    CREATE VIEW vx AS SELECT * FROM v32768 UNION SELECT * FROM v32768;
+  }
+} {1 {too many references to "v1": max 65535}}
+ifcapable progress {
+  do_test view-21.2 {
+    db progress 1000 {expr 1}
+    catchsql {
+      SELECT * FROM v32768;
+    }
+  } {1 interrupted}
+}
+
+db close
+sqlite3 db :memory:
+do_execsql_test view-22.1 {
+  CREATE VIEW x1 AS SELECT 123 AS '', 234 AS '', 345 AS '';
+  SELECT * FROM x1;
+} {123 234 345}
+do_test view-22.2 {
+  unset -nocomplain x
+  db eval {SELECT * FROM x1} x break
+  lsort [array names x]
+} {{} * :1 :2}
+
+
 finish_test