Remove some unused code from expr.c in order to increase test coverage. (CVS 6156)

FossilOrigin-Name: 2cbea64fb00a1b5b8aa0e9c958b2a09256ae59bc

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\sbug\sin\sthe\sprevious\scommit\s-\suse\sSQL\scomments\sinstead\sof\sTcl\scomments\sin\sSQL\sblocks.\s(CVS\s6155)
+C Remove\ssome\sunused\scode\sfrom\sexpr.c\sin\sorder\sto\sincrease\stest\scoverage.\s(CVS\s6156)
-D 2009-01-10T11:13:40
+D 2009-01-10T13:24:51
 F Makefile.arm-wince-mingw32ce-gcc fcd5e9cd67fe88836360bb4f9ef4cb7f8e2fb5a0
 F Makefile.in 05461a9b5803d5ad10c79f989801e9fd2cc3e592
 F Makefile.linux-gcc d53183f4aa6a9192d249731c90dbdffbd2c68654
@@ -111,7 +111,7 @@ F src/callback.c bee8949d619b1b7b1e4dfac8a19c5116ae1dd12a
 F src/complete.c cb14e06dbe79dee031031f0d9e686ff306afe07c
 F src/date.c e010095d85c895761627bb1d0d61d021aea930a9
 F src/delete.c 6249005bdd8f85db6ec5f31ddb5c07de023693cc
-F src/expr.c a385202af56d622b11d05e8d386def256155152b
+F src/expr.c 8d19c0597bc2b7bdd88cd1975b49429e001f4838
 F src/fault.c dc88c821842157460750d2d61a8a8b4197d047ff
 F src/func.c b0e1c61301f33d67b72ab15d85c80ed76e7c98ac
 F src/global.c 91723e45a2ad03ae5bb97a0a0d2dbb1a0e69527b
@@ -158,12 +158,12 @@ F src/select.c ae72b604e47092521c4d9ae54e1b1cbeb872a747
 F src/shell.c 65d19f8996a160f288087e31810f24025439c62a
 F src/sqlite.h.in 6cd2489e40fe97ba58c60044a4ced377e08b6d09
 F src/sqlite3ext.h 1db7d63ab5de4b3e6b83dd03d1a4e64fef6d2a17
-F src/sqliteInt.h ab0419bbf296371f23404046924e6edd07c4af42
+F src/sqliteInt.h 4b2a8eb466c30daa90d25f9d3bb2e85b60ad47af
 F src/sqliteLimit.h 651a2757ba55aeba1da167786b6a8c3404433940
 F src/status.c 237b193efae0cf6ac3f0817a208de6c6c6ef6d76
 F src/table.c 23db1e5f27c03160987c122a078b4bb51ef0b2f8
 F src/tclsqlite.c 4415e1033bd3e92b05a6a9cde911ee4de3b82df9
-F src/test1.c 243bbbdb91618ecce2a51e0ee1c7d8f3f8740193
+F src/test1.c 84221fbafc2f02e3a9285def0b3ed401f5cde258
 F src/test2.c 724095fc69cb54b018aaa4463a56836c0b53a17a
 F src/test3.c 88a246b56b824275300e6c899634fbac1dc94b14
 F src/test4.c f79ab52d27ff49b784b631a42e2ccd52cfd5c84c
@@ -696,7 +696,7 @@ F tool/speedtest16.c c8a9c793df96db7e4933f0852abb7a03d48f2e81
 F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
-P 000aedb0471b5f5a69e7b61f5e1d4b2644994f32
+P 3d7a8de248ad5fba0e9c88f439cd2d988dcbab8c
-R b9af50aa7f5d731abd3dea65ed538d84
+R c24af2bb926bb5803a456faffe9201b2
-U danielk1977
+U drh
-Z eeac7b0df6e5be72914ec444096e70f6
+Z b201089d3d309f3e54d63a28fa490474

manifest.uuid

@@ -1 +1 @@
-3d7a8de248ad5fba0e9c88f439cd2d988dcbab8c
+2cbea64fb00a1b5b8aa0e9c958b2a09256ae59bc

src/expr.c

@@ -12,7 +12,7 @@
 ** This file contains routines used for analyzing expressions and
 ** for generating VDBE code that evaluates expressions in SQLite.
 **
-** $Id: expr.c,v 1.408 2008/12/15 15:27:52 drh Exp $
+** $Id: expr.c,v 1.409 2009/01/10 13:24:51 drh Exp $
 */
 #include "sqliteInt.h"
 #include <ctype.h>
@@ -920,7 +920,6 @@ static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){
       /* Fall through */
     case TK_ID:
     case TK_COLUMN:
-    case TK_DOT:
     case TK_AGG_FUNCTION:
     case TK_AGG_COLUMN:
 #ifndef SQLITE_OMIT_SUBQUERY
@@ -931,7 +930,6 @@ static int exprNodeIsConstant(Walker *pWalker, Expr *pExpr){
 #endif
       testcase( pExpr->op==TK_ID );
       testcase( pExpr->op==TK_COLUMN );
-      testcase( pExpr->op==TK_DOT );
       testcase( pExpr->op==TK_AGG_FUNCTION );
       testcase( pExpr->op==TK_AGG_COLUMN );
       pWalker->u.i = 0;
@@ -1038,12 +1036,6 @@ int sqlite3IsRowid(const char *z){
   return 0;
 }
 
-#ifdef SQLITE_TEST
-  int sqlite3_enable_in_opt = 1;
-#else
-  #define sqlite3_enable_in_opt 1
-#endif
-
 /*
 ** Return true if the IN operator optimization is enabled and
 ** the SELECT statement p exists and is of the
@@ -1059,7 +1051,6 @@ static int isCandidateForInOpt(Select *p){
   SrcList *pSrc;
   ExprList *pEList;
   Table *pTab;
-  if( !sqlite3_enable_in_opt ) return 0; /* IN optimization must be enabled */
   if( p==0 ) return 0;                   /* right-hand side of IN is SELECT */
   if( p->pPrior ) return 0;              /* Not a compound SELECT */
   if( p->selFlags & (SF_Distinct|SF_Aggregate) ){
@@ -1070,8 +1061,8 @@ static int isCandidateForInOpt(Select *p){
   if( p->pOffset ) return 0;
   if( p->pWhere ) return 0;              /* Has no WHERE clause */
   pSrc = p->pSrc;
-  if( pSrc==0 ) return 0;                /* A single table in the FROM clause */
+  assert( pSrc!=0 );
-  if( pSrc->nSrc!=1 ) return 0;
+  if( pSrc->nSrc!=1 ) return 0;          /* Single term in FROM clause */
   if( pSrc->a[0].pSelect ) return 0;     /* FROM clause is not a subquery */
   pTab = pSrc->a[0].pTab;
   if( pTab==0 ) return 0;
@@ -1658,33 +1649,22 @@ static int usedAsColumnCache(Parse *pParse, int iFrom, int iTo){
 }
 
 /*
-** Theres is a value in register iCurrent.  We ultimately want
+** There is a value in register iReg.
-** the value to be in register iTarget.  It might be that
-** iCurrent and iTarget are the same register.
 **
 ** We are going to modify the value, so we need to make sure it
-** is not a cached register.  If iCurrent is a cached register,
+** is not a cached register.  If iReg is a cached register,
-** then try to move the value over to iTarget.  If iTarget is a
+** then clear the corresponding cache line.
-** cached register, then clear the corresponding cache line.
-**
-** Return the register that the value ends up in.
 */
-int sqlite3ExprWritableRegister(Parse *pParse, int iCurrent, int iTarget){
+void sqlite3ExprWritableRegister(Parse *pParse, int iReg){
   int i;
-  assert( pParse->pVdbe!=0 );
+  if( usedAsColumnCache(pParse, iReg, iReg) ){
-  if( !usedAsColumnCache(pParse, iCurrent, iCurrent) ){
+    for(i=0; i<pParse->nColCache; i++){
-    return iCurrent;
+      if( pParse->aColCache[i].iReg==iReg ){
-  }
+        pParse->aColCache[i] = pParse->aColCache[--pParse->nColCache];
-  if( iCurrent!=iTarget ){
+        pParse->iColCache = pParse->nColCache;
-    sqlite3VdbeAddOp2(pParse->pVdbe, OP_SCopy, iCurrent, iTarget);
+      }
-  }
-  for(i=0; i<pParse->nColCache; i++){
-    if( pParse->aColCache[i].iReg==iTarget ){
-      pParse->aColCache[i] = pParse->aColCache[--pParse->nColCache];
-      pParse->iColCache = pParse->nColCache;
     }
   }
-  return iTarget;
 }
 
 /*
@@ -3077,7 +3057,7 @@ int sqlite3GetTempReg(Parse *pParse){
 }
 void sqlite3ReleaseTempReg(Parse *pParse, int iReg){
   if( iReg && pParse->nTempReg<ArraySize(pParse->aTempReg) ){
-    sqlite3ExprWritableRegister(pParse, iReg, iReg);
+    sqlite3ExprWritableRegister(pParse, iReg);
     pParse->aTempReg[pParse->nTempReg++] = iReg;
   }
 }

src/sqliteInt.h

@@ -11,7 +11,7 @@
 *************************************************************************
 ** Internal interface definitions for SQLite.
 **
-** @(#) $Id: sqliteInt.h,v 1.821 2009/01/09 14:11:05 drh Exp $
+** @(#) $Id: sqliteInt.h,v 1.822 2009/01/10 13:24:51 drh Exp $
 */
 #ifndef _SQLITEINT_H_
 #define _SQLITEINT_H_
@@ -863,6 +863,7 @@ struct FuncDef {
 #define SQLITE_FUNC_CASE     0x02 /* Case-sensitive LIKE-type function */
 #define SQLITE_FUNC_EPHEM    0x04 /* Ephemeral.  Delete with VDBE */
 #define SQLITE_FUNC_NEEDCOLL 0x08 /* sqlite3GetFuncCollSeq() might be called */
+#define SQLITE_FUNC_PRIVATE  0x10 /* Allowed for internal use only */
 
 /*
 ** The following three macros, FUNCTION(), LIKEFUNC() and AGGREGATE() are
@@ -2288,7 +2289,7 @@ void sqlite3ExprCodeMove(Parse*, int, int, int);
 void sqlite3ExprCodeCopy(Parse*, int, int, int);
 void sqlite3ExprClearColumnCache(Parse*, int);
 void sqlite3ExprCacheAffinityChange(Parse*, int, int);
-int sqlite3ExprWritableRegister(Parse*,int,int);
+void sqlite3ExprWritableRegister(Parse*,int);
 void sqlite3ExprHardCopy(Parse*,int,int);
 int sqlite3ExprCode(Parse*, Expr*, int);
 int sqlite3ExprCodeTemp(Parse*, Expr*, int*);

src/test1.c

@@ -13,7 +13,7 @@
 ** is not included in the SQLite library.  It is used for automated
 ** testing of the SQLite library.
 **
-** $Id: test1.c,v 1.341 2009/01/09 21:41:17 drh Exp $
+** $Id: test1.c,v 1.342 2009/01/10 13:24:51 drh Exp $
 */
 #include "sqliteInt.h"
 #include "tcl.h"
@@ -4979,7 +4979,6 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
   extern int sqlite3VdbeAddopTrace;
 #endif
 #ifdef SQLITE_TEST
-  extern int sqlite3_enable_in_opt;
   extern char sqlite3_query_plan[];
   static char *query_plan = sqlite3_query_plan;
 #ifdef SQLITE_ENABLE_FTS3
@@ -5064,13 +5063,9 @@ int Sqlitetest1_Init(Tcl_Interp *interp){
       (char*)&sqlite3_sync_count, TCL_LINK_INT);
   Tcl_LinkVar(interp, "sqlite_fullsync_count",
       (char*)&sqlite3_fullsync_count, TCL_LINK_INT);
-#ifdef SQLITE_TEST
+#if defined(SQLITE_ENABLE_FTS3) && defined(SQLITE_TEST)
-  Tcl_LinkVar(interp, "sqlite_enable_in_opt",
-      (char*)&sqlite3_enable_in_opt, TCL_LINK_INT);
-#ifdef SQLITE_ENABLE_FTS3
   Tcl_LinkVar(interp, "sqlite_fts3_enable_parentheses",
       (char*)&sqlite3_fts3_enable_parentheses, TCL_LINK_INT);
-#endif
 #endif
   return TCL_OK;
 }