Expire all prepared statements whenever there is a change to the schema

of the TEMP database.  Ticket #1644. (CVS 3036)

FossilOrigin-Name: 4cd4efaf5ef40a07e76fba3073bbd2600ca7e327

manifest

@@ -1,5 +1,5 @@
-C Fix\sbug\swith\sCHECK\sconstraints\scontain\san\sIN\soperator.\s\sTicket\s#1645.\s(CVS\s3035)
-D 2006-01-30T14:36:59
+C Expire\sall\sprepared\sstatements\swhenever\sthere\sis\sa\schange\sto\sthe\sschema\nof\sthe\sTEMP\sdatabase.\s\sTicket\s#1644.\s(CVS\s3036)
+D 2006-01-30T15:34:23
 F Makefile.in e936c6fc3134838318aa0335a85041e6da31f6ee
 F Makefile.linux-gcc 74ba0eadf88748a9ce3fd03d2a3ede2e6715baec
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -89,7 +89,7 @@ F src/update.c 14be4ba2f438919b4217085c02feff569e6cf1f2
 F src/utf.c 1199766bbb0157931a83aa6eede6b6381177be64
 F src/util.c 82ee598519b8193184bdeab06b51a4ffa05ad60b
 F src/vacuum.c 3865673cc66acd0717ecd517f6b8fdb2a5e7924b
-F src/vdbe.c 799e6280aef25bae55d2da21b5a6dbdda5e76e36
+F src/vdbe.c fee677e05236e483d6c75d1d4229955fc1b89193
 F src/vdbe.h 8729a4ee16ff9aeab2af9667df3cf300ff978e13
 F src/vdbeInt.h eb3f86ab08ef11635bc78eb88c3ff13f923c233b
 F src/vdbeapi.c dcb2636f49b4807e34960d52a2fc257b3a751140
@@ -255,6 +255,7 @@ F test/tkt1514.test baa587a69fa2e8d575ebdaf1460f711281dcba49
 F test/tkt1536.test 83ff7a7b6e248016f8d682d4f7a4ae114070d466
 F test/tkt1537.test e3a14332de9770be8ff14bd15c19a49cbec10808
 F test/tkt1567.test 18023cc3626a365f0118e17b66decedec93b1a6f
+F test/tkt1644.test c44a4957874583de0854159d3481bed8facc9c2d
 F test/trace.test 75ffc1b992c780d054748a656e3e7fd674f18567
 F test/trans.test b25eae982d156867eac338409905fd4ca589b7f8
 F test/trigger1.test 0c1d44882dba5c92e4efee4dd133cc979f0b1860
@@ -347,7 +348,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl a99cf5f6d8bd4d5537584a2b342f0fb9fa601d8b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 2e23231f0c10b2bba9e08ea47859e2c0ffa84c76
-R 3b0f9d35458ab8f6669640d2d99a201a
+P 944df310ce8d32798135c70becee7845676520ae
+R 29e2b008efd55eab83787ea3973e471c
 U drh
-Z da68d113e790373b1b3d356e0a8d22c5
+Z 695d02c988e27778f6752e27ab962e1f

manifest.uuid

@@ -1 +1 @@
-944df310ce8d32798135c70becee7845676520ae
+4cd4efaf5ef40a07e76fba3073bbd2600ca7e327

src/vdbe.c

@@ -43,7 +43,7 @@
 ** in this file for details.  If in doubt, do not deviate from existing
 ** commenting and indentation practices when changing or adding code.
 **
-** $Id: vdbe.c,v 1.539 2006/01/24 13:09:33 danielk1977 Exp $
+** $Id: vdbe.c,v 1.540 2006/01/30 15:34:23 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -2463,6 +2463,11 @@ case OP_SetCookie: {       /* no-push */
   }
   assert( (pTos->flags & MEM_Dyn)==0 );
   pTos--;
+  if( pOp->p1==1 ){
+    /* Invalidate all prepared statements whenever the TEMP database
+    ** schema is changed.  Ticket #1644 */
+    sqlite3ExpirePreparedStatements(db);
+  }
   break;
 }
 

test/tkt1644.test

@@ -0,0 +1,68 @@
+# 2006 January 30
+#
+# 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 regression tests for SQLite library.
+#
+# This file implements tests to verify that ticket #1644 is
+# fixed.  Ticket #1644 complains that precompiled statements
+# are not expired correctly as a result of changes to TEMP
+# views and triggers.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+
+# Create two tables T1 and T2 and make V1 point to T1.
+do_test tkt1644-1.1 {
+  execsql {
+    CREATE TABLE t1(a);
+    INSERT INTO t1 VALUES(1);
+    CREATE TABLE t2(b);
+    INSERT INTO t2 VALUES(99);
+    CREATE TEMP VIEW v1 AS SELECT * FROM t1;
+    SELECT * FROM v1;
+  }
+} {1}
+
+# The "SELECT * FROM v1" should be in the TCL interface cache below.
+# It will continue to point to T1 unless the cache is invalidated when
+# the view changes.
+#
+do_test tkt1644-1.2 {
+  execsql {
+    DROP VIEW v1;
+    CREATE TEMP VIEW v1 AS SELECT * FROM t2;
+    SELECT * FROM v1;
+  }
+} {99}
+
+# Cache an access to the T1 table.
+#
+do_test tkt1644-1.3 {
+  execsql {
+    SELECT * FROM t1;
+  }
+} {1}
+
+# Create a temp table T1.  Make sure the cache is invalidated so that
+# the statement is recompiled and refers to the empty temp table.
+#
+do_test tkt1644-1.4 {
+  execsql {
+    CREATE TEMP TABLE t1(x);
+  }
+  execsql {
+    SELECT * FROM t1;
+  }
+} {}
+
+
+finish_test