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The case_sensitive_like pragma added.

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Test cases added for the LIKE optimization. (CVS 2592)

FossilOrigin-Name: 72ee21c05e618b6f46f5460f8c85779c72fe32d7
This commit is contained in:
drh
2005-08-14 01:20:37 +00:00
parent 3d94662a06
commit 55ef4d9758
11 changed files with 464 additions and 95 deletions
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16
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.401 2005/08/12 22:56:09 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.402 2005/08/14 01:20:39 drh Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
@@ -496,17 +496,23 @@ struct sqlite3 {
** points to a linked list of these structures.
*/
struct FuncDef {
char *zName; /* SQL name of the function */
int nArg; /* Number of arguments. -1 means unlimited */
i16 nArg; /* Number of arguments. -1 means unlimited */
u8 iPrefEnc; /* Preferred text encoding (SQLITE_UTF8, 16LE, 16BE) */
u8 needCollSeq; /* True if sqlite3GetFuncCollSeq() might be called */
u8 flags; /* Some combination of SQLITE_FUNC_* */
void *pUserData; /* User data parameter */
FuncDef *pNext; /* Next function with same name */
void (*xFunc)(sqlite3_context*,int,sqlite3_value**); /* Regular function */
void (*xStep)(sqlite3_context*,int,sqlite3_value**); /* Aggregate step */
void (*xFinalize)(sqlite3_context*); /* Aggregate finializer */
u8 needCollSeq; /* True if sqlite3GetFuncCollSeq() might be called */
char zName[1]; /* SQL name of the function. MUST BE LAST */
};
/*
** Possible values for FuncDef.flags
*/
#define SQLITE_FUNC_LIKEOPT 0x01 /* Candidate for the LIKE optimization */
/*
** information about each column of an SQL table is held in an instance
** of this structure.
@@ -1576,6 +1582,8 @@ int sqlite3InvokeBusyHandler(BusyHandler*);
int sqlite3FindDb(sqlite3*, Token*);
void sqlite3AnalysisLoad(sqlite3*,int iDB);
void sqlite3DefaultRowEst(Index*);
void sqlite3RegisterLikeFunctions(sqlite3*, int);
int sqlite3IsLikeFunction(sqlite3*,Expr*,char*);
#ifdef SQLITE_SSE
#include "sseInt.h"