JPA query problem

Question

Hi folks !
I have this class with TemporalType.DATE property
and i want to know if the query i design should look like this:
select a from A a where a.dateProp = :theDateis this sufficient (where theDate should be substituted with a java.util.Date object with only the date,month,year set)?
thanks

Answer 1

Yes. In fact, the problem I've posted is a generalization of a more strange behaviur. The (cutted-off) schema is
Table Charter
id       integer   primary key
company  integer   foreign key (on 'id' of table 'company')
price    decimal
Table Company
id       integer   primary key
name     textNow, assume I have 10 records in table Charter referencing 10 records in table Company (each row in Charter reference a distinct row in Company).
This query returns me THE CORRECT RESULT (that is, each matching row is present in the result set only once):
SELECT o FROM Charter AS o WHERE o.company.id = :company AND 1=1Instead, this query returns me each matching row, BUT REPEATED N TIMES, where N is the number of rows in Charter (10):
SELECT o FROM Charter AS o WHERE 1=1 AND o.company.id = :company(Notice that the only difference is the order of the where clause)
(Notice also that I get the same behaviour even if I do a query on the 'price' field).
Also, this query that should return all the rows in the table (one time each), returns them N times:
SELECT o FROM Charter AS o WHERE 1=1Any idea?
Really thank you
ps I forgot to say that, after translating those JPQL query in standard SQL and executing them in PostgreSQL console, they are, obiouvsly, equivalent and work correctly.
Message was edited by:
Konrad84