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separate Select structure (CVS 51)

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FossilOrigin-Name: ce45dea902f9010a1c2c9ba3550dd789e7c15fcd
This commit is contained in:
drh
2000-06-05 16:01:39 +00:00
parent d1dedb86bf
commit 9bb61fe751
8 changed files with 163 additions and 73 deletions
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23
src/sqliteInt.h
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@@ -23,7 +23,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.13 2000/06/05 02:07:04 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.14 2000/06/05 16:01:39 drh Exp $
*/
#include "sqlite.h"
#include "dbbe.h"
@@ -35,7 +35,7 @@
#include <string.h>
#include <assert.h>
/* #define MEMORY_DEBUG 1 */
#define MEMORY_DEBUG 1
#ifdef MEMORY_DEBUG
# define sqliteMalloc(X) sqliteMalloc_(X,__FILE__,__LINE__)
# define sqliteFree(X) sqliteFree_(X,__FILE__,__LINE__)
@@ -87,6 +87,7 @@ typedef struct Parse Parse;
typedef struct Token Token;
typedef struct IdList IdList;
typedef struct WhereInfo WhereInfo;
typedef struct Select Select;
/*
** Each database is an instance of the following structure
@@ -208,6 +209,20 @@ struct WhereInfo {
int iBreak;
};
/*
** An instance of the following structure contains all information
** needed to generate code for a single SELECT statement.
*/
struct Select {
int isDistinct; /* True if the DISTINCT keyword is present */
ExprList *pEList; /* The fields of the result */
IdList *pSrc; /* The FROM clause */
Expr *pWhere; /* The WHERE clause */
ExprList *pGroupBy; /* The GROUP BY clause */
Expr *pHaving; /* The HAVING clause */
ExprList *pOrderBy; /* The ORDER BY clause */
};
/*
** An SQL parser context
*/
@@ -266,7 +281,9 @@ void sqliteIdListAddAlias(IdList*, Token*);
void sqliteIdListDelete(IdList*);
void sqliteCreateIndex(Parse*, Token*, Token*, IdList*, Token*, Token*);
void sqliteDropIndex(Parse*, Token*);
void sqliteSelect(Parse*, ExprList*, IdList*, Expr*, ExprList*, int);
int sqliteSelect(Parse*, Select*, Table*, int);
Select *sqliteSelectNew(ExprList*,IdList*,Expr*,ExprList*,Expr*,ExprList*,int);
void sqliteSelectDelete(Select*);
void sqliteDeleteFrom(Parse*, Token*, Expr*);
void sqliteUpdate(Parse*, Token*, ExprList*, Expr*);
WhereInfo *sqliteWhereBegin(Parse*, IdList*, Expr*, int);