Hi,

implicit tableupdate is one potential source of errors.

CLEAR
SET MULTILOCKS ON
CREATE CURSOR myCursor (id i)
CURSORSETPROP("Buffering",3)
INSERT INTO myCursor VALUES (1)
CURSORSETPROP("Buffering",5)
* fire implicit TABLEUPDATE() ( bug for me )
* TableBuffering extended RecordBuffering
* then correct operation is not update the record buffer
* and preserve the buffer data ( i known the problem with buffered index but ... )
* if is too hard to implemement, fire a error
? TABLEREVERT()
CURSORSETPROP("Buffering",3)
INSERT INTO myCursor VALUES (2)
INDEX ON id TAG tid		&& <---- fire implict TABLEUPDATE()
? TABLEREVERT()
INSERT INTO myCursor VALUES (3)
? KEYMATCH(2)			&& <---- fire implicit TABLEUPDATE()
* ( bad for me, but MS documented it)
? TABLEREVERT()
INSERT INTO myCursor VALUES (4)
? INDEXSEEK(3)			&& none implicit TABLEUPDATE()
? TABLEREVERT()

For me, con the record buffering active, it must only fire implicit tableupdate when it is attempted to abandon the record in explicit way (SEEK, LOCATE, LOOKUP, GO...)

Fabio