Validation not detects one specific case of index corruption
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Key: CORE-3844
URL: http://tracker.firebirdsql.org/browse/CORE-3844
Project: Firebird Core
Issue Type: Bug
Components: Engine
Affects Versions: 2.0.7, 2.5.1, 2.1.4, 2.5.0, 2.0.6, 3.0 Initial, 2.1.3,
2.1.2, 2.0.5, 2.1.1, 2.1.0
Reporter: Vlad Khorsun
Below i consider a two index keys where one (shorter) key is a full prefix of
another (longer) key, for example:
- 'aa' and 'aaa'
- '' and 'a'
The rule :
- in ascending index short key is less then long key ('aa' < 'aaa', '' < 'a')
- in descending index short key is greater then long key ('aaa' < 'aa', 'a' <
'').
The validation code is not detect the cases when rule above is violated.
For example, corruption at CORE-3839\CORE-3841 is not detected.
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