From: drh <drh@noemail.net>
Date: Wed, 25 Sep 2002 19:04:07 +0000 (+0000)
Subject: Bug fix: When multiple SQL statements were passed into a single sqlite_exec() call... 
X-Git-Tag: version-3.6.10~5319
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=a226d054081e162a8712361c7e97cf97ddb56af7;p=thirdparty%2Fsqlite.git

Bug fix: When multiple SQL statements were passed into a single sqlite_exec() call, execution speed would decrease for each statement executed because VDBE cursors were not being reused.  Now the cursors are reused and execution time is linear. (CVS 754)

FossilOrigin-Name: b0d27a377a9f6134f81108fe45c8c868ab4d4411
---

diff --git a/manifest b/manifest
index 3eb3daabc4..eac20de18e 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Make\ssure\smemory\smalloced()\sfor\sstructures\sis\saligned\son\san\seven\sbyte\sboundry.\nSolaris\ssegfaults\sotherwise.\s(CVS\s753)
-D 2002-09-21T15:57:57
+C Bug\sfix:\sWhen\smultiple\sSQL\sstatements\swere\spassed\sinto\sa\ssingle\ssqlite_exec()\scall,\sexecution\sspeed\swould\sdecrease\sfor\seach\sstatement\sexecuted\sbecause\sVDBE\scursors\swere\snot\sbeing\sreused.\s\sNow\sthe\scursors\sare\sreused\sand\sexecution\stime\sis\slinear.\s(CVS\s754)
+D 2002-09-25T19:04:07
 F Makefile.in d6c9a85c2a5e696843201d090dcf8bf2f8716f2a
 F Makefile.linux-gcc b86a99c493a5bfb402d1d9178dcdc4bd4b32f906
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -20,7 +20,7 @@ F spec.template 238f7db425a78dc1bb7682e56e3834c7270a3f5e
 F sqlite.1 83f4a9d37bdf2b7ef079a82d54eaf2e3509ee6ea
 F src/btree.c 8024b87635c2adf133f153f1bb595125ec1c7d7b
 F src/btree.h 0ca6c2631338df62e4f7894252d9347ae234eda9
-F src/build.c 84f397a61b5bfcc1140fd41b9f8c5bda364dfea5
+F src/build.c 37e19378206b043ac6a0b7d53cf0726549a0bbdb
 F src/delete.c aad9d4051ab46e6f6391ea5f7b8994a7c05bdd15
 F src/encode.c 6c9c87d5b7b2c0101d011ebc283a80abf672a4d1
 F src/expr.c e1327eb020a68ff7c49382e121ad4b71b3441b2a
@@ -149,7 +149,7 @@ F www/speed.tcl a20a792738475b68756ea7a19321600f23d1d803
 F www/sqlite.tcl ae3dcfb077e53833b59d4fcc94d8a12c50a44098
 F www/tclsqlite.tcl 1db15abeb446aad0caf0b95b8b9579720e4ea331
 F www/vdbe.tcl 2013852c27a02a091d39a766bc87cff329f21218
-P 29145746f34438bd830c763872c5e82572150357
-R 5d4b302464bafa2bfba8710f952a6108
+P 14ebe30bf5937effdc388e23e998ba1a34fb0a29
+R 177fd2a86ea7e1243cec22f56d3bf48e
 U drh
-Z dc6c63618e264b41d89885961d5df42f
+Z f9ea9206896cc0d3e37a6baef7c96e75
diff --git a/manifest.uuid b/manifest.uuid
index 5e9bb5fd45..b8d164f387 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-14ebe30bf5937effdc388e23e998ba1a34fb0a29
\ No newline at end of file
+b0d27a377a9f6134f81108fe45c8c868ab4d4411
\ No newline at end of file
diff --git a/src/build.c b/src/build.c
index 0a0d761194..98fcb23e1d 100644
--- a/src/build.c
+++ b/src/build.c
@@ -25,7 +25,7 @@
 **     ROLLBACK
 **     PRAGMA
 **
-** $Id: build.c,v 1.113 2002/09/21 15:57:57 drh Exp $
+** $Id: build.c,v 1.114 2002/09/25 19:04:07 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -81,6 +81,10 @@ void sqliteExec(Parse *pParse){
     pParse->rc = rc;
     pParse->schemaVerified = 0;
   }
+  pParse->nTab = 0;
+  pParse->nMem = 0;
+  pParse->nSet = 0;
+  pParse->nAgg = 0;
 }
 
 /*