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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0px; border-collapse: collapse; padding: 0 0 10px 0; padding-top: 10px"> <span class="diffcontext">Hi,<br />I think I can bring some light on this matter for all people having problems similar to this. These are my findings.<br />On the project I currently work on I had the following case:<br />{quote}<br />select data from Data data where ( <br /> data.billingCountry in :countryList <br /> or data.customerCountry in :countryList <br /> or data.deliveryCountry in :countryList <br /> or data.collectionCountry in :countryList<br />)<br />{quote}<br />when executing this for :countryList = ['ES'] all worked fine, when having :countryList=['ES', 'PT'] this was happening:<br />{quote}<br />org.hibernate.hql.internal.ast.QuerySyntaxException: unexpected AST node: \{vector\} [select data from Data data where ( data.billingCountry in (:countryList_0_, :countryList_1_) or data.customerCountry in (:countryList_0_, :countryList_1_) or data.deliveryCountry in (:countryList_0_, :countryList_1_) or data.collectionCountry in :countryList_0_, :countryList_1_ ) ]<br />{quote}<br />After debugging</span> <span class="diffaddedchars" style="background-color:#ddfade;"> a while</span> <span class="diffcontext"> looked like the</span> <span class="diffremovedchars" style="background-color:#ffe7e7;text-decoration:line-through;"> that the</span> <span class="diffcontext"> method *org.hibernate.internal.AbstractQueryImpl.expandParameterList* was expanding the last instance of the parameter wrong. The simple fix was to enclose all the list typed parameters in parentheses. <br /><br />Why? Because that's how you use the *in* clause. <br /><br />I was investigating this last night, and did not go deeper into the sources, putting the list parameters in parentheses was just a moment of inspiration. I was looking at the SQL expected query and I just thought maybe my list should be enclosed in parentheses in Hql just like in the SQL query syntax. And it worked so I just committed my changes and started on something else, but this kept bugging me so I went through the documentation and found this:<br />[from DomesticCat cat where cat.name in ( 'Foo', 'Bar', 'Baz' )|http://docs.jboss.org/hibernate/orm/3.3/reference/en/html/queryhql.html]<br /><br />But, most developers when writing Hql queries as text and then calling *query.setParameter* tend to skip things. This happened to me and most probably happens to others, otherwise the internet would not be full of people going crazy and calling this a hibernate bug. <br /><br />So mr. Steve Ebersole this is not a bug, is Hql misuse or bad syntax. The original query posted as an example, would work just fine if the :companies parameter would be enclosed in parentheses:<br />{quote}<br />SELECT ed<br /> FROM ExternalDocument ed<br /> LEFT JOIN FETCH ed.documentType dt<br /> JOIN FETCH ed.company co<br /> WHERE co IN (:companies) AND (dt IS NULL OR dt IN :docTypes)<br /> ORDER BY ed.fileName<br />{quote}<br /><br />I am unsure how this:<br />{quote}<br />select item from Item item where item.name in :names and ( item.descr is null or item.descr in :descrs )<br />{quote}<br />worked for you though when :names was let's say ['Mary', 'Joe'].<br /><br />Hibernate version used: *4.2.8.Final*</span>
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