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Fix problems with TEMP indices that lead to corrupt databases. These

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problems were discovered while working on ticket #317.  No sure yet if
that ticket is fixed. (CVS 981)

FossilOrigin-Name: 01398fb78bab7e5c6f439f2b743f26e82118468a
This commit is contained in:
drh
2003-05-17 17:35:10 +00:00
parent 0594f5b97e
commit 8bf8dc9208
17 changed files with 493 additions and 303 deletions
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49
src/sqliteInt.h
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@@ -11,7 +11,7 @@
*************************************************************************
** Internal interface definitions for SQLite.
**
** @(#) $Id: sqliteInt.h,v 1.184 2003/05/10 03:04:34 jplyon Exp $
** @(#) $Id: sqliteInt.h,v 1.185 2003/05/17 17:35:12 drh Exp $
*/
#include "config.h"
#include "sqlite.h"
@@ -240,6 +240,38 @@ struct Db {
u16 flags; /* Flags associated with this database */
};
/*
** These macros can be used to test, set, or clear bits in the
** Db.flags field.
*/
#define DbHasProperty(D,I,P) (((D)->aDb[I].flags&(P))==(P))
#define DbHasAnyProperty(D,I,P) (((D)->aDb[I].flags&(P))!=0)
#define DbSetProperty(D,I,P) (D)->aDb[I].flags|=(P)
#define DbClearProperty(D,I,P) (D)->aDb[I].flags&=~(P)
/*
** Allowed values for the DB.flags field.
**
** The DB_Locked flag is set when the first OP_Transaction or OP_Checkpoint
** opcode is emitted for a database. This prevents multiple occurances
** of those opcodes for the same database in the same program. Similarly,
** the DB_Cookie flag is set when the OP_VerifyCookie opcode is emitted,
** and prevents duplicate OP_VerifyCookies from taking up space and slowing
** down execution.
**
** The DB_SchemaLoaded flag is set after the database schema has been
** read into internal hash tables.
**
** DB_UnresetViews means that one or more views have column names that
** have been filled out. If the schema changes, these column names might
** changes and so the view will need to be reset.
*/
#define DB_Locked 0x0001 /* OP_Transaction opcode has been emitted */
#define DB_Cookie 0x0002 /* OP_VerifyCookie opcode has been emiited */
#define DB_SchemaLoaded 0x0004 /* The schema has been loaded */
#define DB_UnresetViews 0x0008 /* Some views have defined column names */
/*
** Each database is an instance of the following structure.
**
@@ -293,7 +325,11 @@ struct sqlite {
};
/*
** Possible values for the sqlite.flags.
** Possible values for the sqlite.flags and or Db.flags fields.
**
** On sqlite.flags, the SQLITE_InTrans value means that we have
** executed a BEGIN. On Db.flags, SQLITE_InTrans means a statement
** transaction is active on that particular database file.
*/
#define SQLITE_VdbeTrace 0x00000001 /* True to trace VDBE execution */
#define SQLITE_Initialized 0x00000002 /* True after initialization */
@@ -306,10 +342,7 @@ struct sqlite {
/* the count using a callback. */
#define SQLITE_NullCallback 0x00000080 /* Invoke the callback once if the */
/* result set is empty */
/*#define SQLITE_ResultDetails 0x00000100 * (UNUSED -- flag free for reuse) */
#define SQLITE_UnresetViews 0x00000200 /* True if one or more views have */
/* defined column names */
#define SQLITE_ReportTypes 0x00000400 /* Include information on datatypes */
#define SQLITE_ReportTypes 0x00000200 /* Include information on datatypes */
/* in 4th argument of callback */
/*
@@ -817,8 +850,6 @@ struct Parse {
u8 nameClash; /* A permanent table name clashes with temp table name */
u8 useAgg; /* If true, extract field values from the aggregator
** while generating expressions. Normally false */
u8 schemaVerified; /* True if an OP_VerifySchema has been coded someplace
** other than after an OP_Transaction */
u8 iDb; /* Index of database whose schema is being parsed */
u8 useCallback; /* True if callbacks should be used to report results */
int useDb; /* Restrict references to tables in this database */
@@ -1077,7 +1108,7 @@ Vdbe *sqliteGetVdbe(Parse*);
int sqliteRandomByte(void);
int sqliteRandomInteger(void);
void sqliteRollbackAll(sqlite*);
void sqliteCodeVerifySchema(Parse*);
void sqliteCodeVerifySchema(Parse*, int);
void sqliteBeginTransaction(Parse*, int);
void sqliteCommitTransaction(Parse*);
void sqliteRollbackTransaction(Parse*);