Help Desk Ticket Reference: https://na7.salesforce.com/500A0000008RoC2
project_key: SOA

When using teiid-hibernate-dialect-7.1.1.GA, the TeiidDialect does not include a function to get the month value of a date object. It includes functions to get other date attributes (year, dayofmonth etc). Without a defined function, attempting to get a month value falls back on the hibernate-core function which attempts to utilize an extract method which is not supported in 7.1.1. 

Example Query: select d from Data d where month(d.date)='09'

HQL Generated: 

select
        data0_.Id as Id25_,
        data0_.DataAmt as DataAmt25_,
        data0_.Data as Data25_,
    from
        Data data0_ 
    where
        extract(month 
    from
        data0_.date)='09'


Being able to obtain a month value from a date is a critical requirement.