static int flagPragma( Parse pParse, string zLeft, string zRight )
{
sPragmaType[] aPragma = new sPragmaType[]{
new sPragmaType( "full_column_names", SQLITE_FullColNames ),
new sPragmaType( "short_column_names", SQLITE_ShortColNames ),
new sPragmaType( "count_changes", SQLITE_CountRows ),
new sPragmaType( "empty_result_callbacks", SQLITE_NullCallback ),
new sPragmaType( "legacy_file_format", SQLITE_LegacyFileFmt ),
new sPragmaType( "fullfsync", SQLITE_FullFSync ),
new sPragmaType( "checkpoint_fullfsync", SQLITE_CkptFullFSync ),
new sPragmaType( "reverse_unordered_selects", SQLITE_ReverseOrder),
#if !SQLITE_OMIT_AUTOMATIC_INDEX
new sPragmaType( "automatic_index", SQLITE_AutoIndex ),
#endif
#if SQLITE_DEBUG
new sPragmaType( "sql_trace", SQLITE_SqlTrace ),
new sPragmaType( "vdbe_listing", SQLITE_VdbeListing ),
new sPragmaType( "vdbe_trace", SQLITE_VdbeTrace ),
#endif
#if !SQLITE_OMIT_CHECK
new sPragmaType( "ignore_check_constraints", SQLITE_IgnoreChecks ),
#endif
/* The following is VERY experimental */
new sPragmaType( "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode ),
new sPragmaType( "omit_readlock", SQLITE_NoReadlock ),
/* TODO: Maybe it shouldn't be possible to change the ReadUncommitted
** flag if there are any active statements. */
new sPragmaType( "read_uncommitted", SQLITE_ReadUncommitted ),
new sPragmaType( "recursive_triggers", SQLITE_RecTriggers ),
/* This flag may only be set if both foreign-key and trigger support
** are present in the build. */
#if !(SQLITE_OMIT_FOREIGN_KEY) && !(SQLITE_OMIT_TRIGGER)
new sPragmaType( "foreign_keys", SQLITE_ForeignKeys ),
#endif
};
int i;
sPragmaType p;
for ( i = 0; i < ArraySize( aPragma ); i++ )//, p++)
{
p = aPragma[i];
if ( zLeft.Equals( p.zName ,StringComparison.InvariantCultureIgnoreCase ) )
{
sqlite3 db = pParse.db;
Vdbe v;
v = sqlite3GetVdbe( pParse );
Debug.Assert( v != null ); /* Already allocated by sqlite3Pragma() */
if ( ALWAYS( v ) )
{
if ( null == zRight )
{
returnSingleInt( pParse, p.zName, ( ( db.flags & p.mask ) != 0 ) ? 1 : 0 );
}
else
{
int mask = p.mask; /* Mask of bits to set or clear. */
if ( db.autoCommit == 0 )
{
/* Foreign key support may not be enabled or disabled while not
** in auto-commit mode. */
mask &= ~( SQLITE_ForeignKeys );
}
if ( sqlite3GetBoolean( zRight ) != 0 )
{
db.flags |= mask;
}
else
{
db.flags &= ~mask;
}
/* Many of the flag-pragmas modify the code generated by the SQL
** compiler (eg. count_changes). So add an opcode to expire all
** compiled SQL statements after modifying a pragma value.
*/
sqlite3VdbeAddOp2( v, OP_Expire, 0, 0 );
}
}
return 1;
}
}
return 0;
}
static int flagPragma( Parse pParse, string zLeft, string zRight )
{
sPragmaType[] aPragma = new sPragmaType[]{
new sPragmaType( "full_column_names", SQLITE_FullColNames ),
new sPragmaType( "short_column_names", SQLITE_ShortColNames ),
new sPragmaType( "count_changes", SQLITE_CountRows ),
new sPragmaType( "empty_result_callbacks", SQLITE_NullCallback ),
new sPragmaType( "legacy_file_format", SQLITE_LegacyFileFmt ),
new sPragmaType( "fullfsync", SQLITE_FullFSync ),
new sPragmaType( "reverse_unordered_selects", SQLITE_ReverseOrder ),
#if SQLITE_DEBUG
new sPragmaType( "sql_trace", SQLITE_SqlTrace ),
new sPragmaType( "vdbe_listing", SQLITE_VdbeListing ),
new sPragmaType( "vdbe_trace", SQLITE_VdbeTrace ),
#endif
#if !SQLITE_OMIT_CHECK
new sPragmaType( "ignore_check_constraints", SQLITE_IgnoreChecks ),
#endif
/* The following is VERY experimental */
new sPragmaType( "writable_schema", SQLITE_WriteSchema|SQLITE_RecoveryMode ),
new sPragmaType( "omit_readlock", SQLITE_NoReadlock ),
/* TODO: Maybe it shouldn't be possible to change the ReadUncommitted
** flag if there are any active statements. */
new sPragmaType( "read_uncommitted", SQLITE_ReadUncommitted ),
};
int i;
sPragmaType p;
for ( i = 0 ; i < ArraySize( aPragma ) ; i++ )//, p++)
{
p = aPragma[i];
if ( sqlite3StrICmp( zLeft, p.zName ) == 0 )
{
sqlite3 db = pParse.db;
Vdbe v;
v = sqlite3GetVdbe( pParse );
Debug.Assert( v != null ); /* Already allocated by sqlite3Pragma() */
if ( ALWAYS( v ) )
{
if ( null == zRight )
{
returnSingleInt( pParse, p.zName, ( ( db.flags & p.mask ) != 0 ) ? 1 : 0 );
}
else
{
if ( getBoolean( zRight ) != 0 )
{
db.flags |= p.mask;
}
else
{
db.flags &= ~p.mask;
}
/* Many of the flag-pragmas modify the code generated by the SQL
** compiler (eg. count_changes). So add an opcode to expire all
** compiled SQL statements after modifying a pragma value.
*/
sqlite3VdbeAddOp2( v, OP_Expire, 0, 0 );
}
}
return 1;
}
}
return 0;
}
