subselect with reference to outer select fails
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Key: CORE-3967
URL: http://tracker.firebirdsql.org/browse/CORE-3967
Project: Firebird Core
Issue Type: Bug
Affects Versions: 3.0 Initial
Environment: probably all (tested with Windows 7 and Ubuntu 12.04)
Reporter: Frank Schlottmann-Goedde
Using the following script in isql against the employee database demonstrates
the error
/*
subselect with reference to outer select
fails with:
Statement failed, SQLSTATE = 42S22
Dynamic SQL Error
-SQL error code = -206
-Column unknown
-R1.RDB$RELATION_NAME
-At line 8, column 32
*/
select R1.RDB$RELATION_NAME
from RDB$RELATION_FIELDS F1
join RDB$RELATIONS R1 on F1.RDB$RELATION_NAME = R1.RDB$RELATION_NAME
where F1.RDB$FIELD_NAME ='EMP_NO' and
(not exists(select R2.RDB$RELATION_NAME
from RDB$RELATION_FIELDS F2
join RDB$RELATIONS R2 on F2.RDB$RELATION_NAME=R1.RDB$RELATION_NAME
where F2.RDB$FIELD_NAME ='PHONE_EXT'));
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