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Add support for the full SQL join syntax. This is just a parser enhancement.

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We now recognize all kinds of joins, but we don't actually do anything with
them yet. (CVS 586)

FossilOrigin-Name: e238643efdbe1394c7ff85e34e486f7c6082b6cc
This commit is contained in:
drh
2002-05-24 16:14:15 +00:00
parent 2e392e2c53
commit 01f3f25376
8 changed files with 157 additions and 38 deletions
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14
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.113 2002/05/24 02:04:33 drh Exp $
** @(#) $Id: sqliteInt.h,v 1.114 2002/05/24 16:14:15 drh Exp $
*/
#include "sqlite.h"
#include "hash.h"
@@ -456,6 +456,17 @@ struct SrcList {
} *a; /* One entry for each identifier on the list */
};
/*
** Permitted values of the SrcList.a.jointype field
*/
#define JT_INNER 0x0001 /* Any kind of inner or cross join */
#define JT_NATURAL 0x0002 /* True for a "natural" join */
#define JT_LEFT 0x0014 /* Left outer join */
#define JT_RIGHT 0x0018 /* Right outer join */
#define JT_FULL 0x001a /* Combination of left and right outer join */
#define JT_OUTER 0x0010 /* The "OUTER" keyword is present */
#define JT_ERROR 0x0020 /* unknown or unsupported join type */
/*
** For each nested loop in a WHERE clause implementation, the WhereInfo
** structure contains a single instance of this structure. This structure
@@ -858,3 +869,4 @@ TriggerStep *sqliteTriggerInsertStep(Token*, IdList*, ExprList*, Select*, int);
TriggerStep *sqliteTriggerUpdateStep(Token*, ExprList*, Expr*, int);
TriggerStep *sqliteTriggerDeleteStep(Token*, Expr*);
void sqliteDeleteTrigger(Trigger*);
int sqliteJoinType(Parse*, Token*, Token*, Token*);