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Remove code for SQL cursors. (CVS 2312)

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FossilOrigin-Name: 2eb90870556c90b8d85da3d5eb7554f74ec922c2
This commit is contained in:
danielk1977
2005-02-04 04:07:16 +00:00
parent 62d54916c4
commit 6a67fe8edf
18 changed files with 58 additions and 634 deletions
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51
src/sqliteInt.h
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@@ -11,19 +11,11 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.365 2005/01/31 12:56:44 danielk1977 Exp $
** @(#) $Id: sqliteInt.h,v 1.366 2005/02/04 04:07:17 danielk1977 Exp $
*/
#ifndef _SQLITEINT_H_
#define _SQLITEINT_H_
/*
** Cursor support is turned off unless the SQLITE_ENABLE_CURSOR option
** is defined.
*/
#ifndef SQLITE_ENABLE_CURSOR
# define SQLITE_OMIT_CURSOR 1
#endif
/*
** These #defines should enable >2GB file support on Posix if the
** underlying operating system supports it. If the OS lacks
@@ -328,10 +320,8 @@ typedef struct AuthContext AuthContext;
typedef struct KeyClass KeyClass;
typedef struct CollSeq CollSeq;
typedef struct KeyInfo KeyInfo;
typedef struct SqlCursor SqlCursor;
typedef struct NameContext NameContext;
typedef struct Fetch Fetch;
typedef struct CursorSubst CursorSubst;
/*
** Each database file to be accessed by the system is an instance
@@ -444,10 +434,6 @@ struct sqlite3 {
int (*xProgress)(void *); /* The progress callback */
void *pProgressArg; /* Argument to the progress callback */
int nProgressOps; /* Number of opcodes for progress callback */
#endif
#ifndef SQLITE_OMIT_CURSOR
int nSqlCursor; /* Number of slots in apSqlCursor[] */
SqlCursor **apSqlCursor; /* Pointers to all active SQL cursors */
#endif
int errCode; /* Most recent error code (SQLITE_*) */
u8 enc; /* Text encoding for this database. */
@@ -974,16 +960,6 @@ struct WhereInfo {
WhereLevel a[1]; /* Information about each nest loop in the WHERE */
};
/*
** An instance of the following structure is used to store information
** about a single FETCH sql command.
*/
struct Fetch {
SqlCursor *pCursor; /* Cursor used by the fetch */
int isBackwards; /* Cursor moves backwards if true, forward if false */
int doRewind; /* True to rewind cursor before starting */
};
/*
** A NameContext defines a context in which to resolve table and column
** names. The context consists of a list of tables (the pSrcList) field and
@@ -1123,11 +1099,6 @@ struct Parse {
int nVarExprAlloc; /* Number of allocated slots in apVarExpr[] */
Expr **apVarExpr; /* Pointers to :aaa and $aaaa wildcard expressions */
u8 explain; /* True if the EXPLAIN flag is found on the query */
#ifndef SQLITE_OMIT_CURSOR
u8 fetchDir; /* The direction argument to the FETCH command */
int dirArg1; /* First argument to the direction */
int dirArg2; /* Second argument to the direction */
#endif
Token sErrToken; /* The token at which the error occurred */
Token sNameToken; /* Token with unqualified schema object name */
Token sLastToken; /* The last token parsed */
@@ -1312,19 +1283,6 @@ typedef struct {
char **pzErrMsg; /* Error message stored here */
} InitData;
/*
** Each SQL cursor (a cursor created by the DECLARE ... CURSOR syntax)
** is represented by an instance of the following structure.
*/
struct SqlCursor {
char *zName; /* Name of this cursor */
int idx; /* Index of this cursor in db->apSqlCursor[] */
Select *pSelect; /* The SELECT statement that defines this cursor */
int nPtr; /* Number of slots in aPtr[] */
sqlite3_value *aPtr; /* Values that define the current cursor position */
};
/*
* This global flag is set for performance testing of triggers. When it is set
* SQLite will perform the overhead of building new and old trigger references
@@ -1578,11 +1536,4 @@ void sqlite3ExpirePreparedStatements(sqlite3*);
void sqlite3CodeSubselect(Parse *, Expr *);
int sqlite3SelectResolve(Parse *, Select *, NameContext *);
#ifndef SQLITE_OMIT_CURSOR
void sqlite3CursorDelete(SqlCursor*);
void sqlite3CursorCreate(Parse*, Token*, Select*);
void sqlite3CursorClose(Parse*, Token*);
void sqlite3Fetch(Parse*, Token*, IdList*);
#endif /* SQLITE_OMIT_CURSOR */
#endif