[nhibernate-issues] [NHJIRA] Created: (NH-2658) Linq provider overcaching HQL

[Daniel G. (JIRA) <nh...@gm...>]

Linq provider overcaching HQL
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                 Key: NH-2658
                 URL: http://216.121.112.228/browse/NH-2658
             Project:  NHibernate
          Issue Type: Bug
          Components: Linq Provider
    Affects Versions: 3.1.0
            Reporter: Daniel Guenter
            Priority: Major


The linq provider caches a query assuming that ALL constants will be turned into HQL parameters. Sometimes this is not the case. A linq extension that selects a concrete entity property based on a constant value will never pass that value into HQL.

This is also a blocking issue in getting Linq to work with dynamic-components.  The string value passed into the dictionary (dict["key"] == x) cannot be passed to HQL as a parameter as it is directly evaluating a property name. Thus the first query will work but subsequent queries will be wrong and will reuse the column/property name of the first cached query. 

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