Bidirectional cursor is not positioned by the first call of FETCH LAST
----------------------------------------------------------------------
Key: CORE-4229
URL: http://tracker.firebirdsql.org/browse/CORE-4229
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 3.0 Alpha 1
Reporter: Simonov Denis
Bidirectional cursor is not positioned by the first call of FETCH LAST
EXECUTE BLOCK
RETURNS (
NAME CHAR(31),
RC INT)
AS
DECLARE C SCROLL CURSOR FOR (
SELECT RDB$FIELD_NAME
FROM RDB$FIELDS);
BEGIN
OPEN C;
FETCH FIRST FROM C
INTO :NAME;
RC = ROW_COUNT;
SUSPEND;
FETCH LAST FROM C
INTO :NAME;
RC = ROW_COUNT;
SUSPEND;
CLOSE C;
END
Result:
NAME RC
--------------------------------
RDB$VIEW_CONTEXT 1
RDB$19775 1
EXECUTE BLOCK
RETURNS (
NAME CHAR(31),
RC INT)
AS
DECLARE C SCROLL CURSOR FOR (
SELECT RDB$FIELD_NAME
FROM RDB$FIELDS);
BEGIN
OPEN C;
/*
FETCH FIRST FROM C
INTO :NAME;
RC = ROW_COUNT;
SUSPEND;
*/
FETCH LAST FROM C
INTO :NAME;
RC = ROW_COUNT;
SUSPEND;
CLOSE C;
END
Result:
NAME RC
----------------------
<null> 0
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