使用日期之间的hibernate hql/sql 连接未正确过滤
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Hibernate hql/sql join using between dates not filtering properly
我希望有人能帮助我理解为什么会发生以下情况。我正在使用 hibernate 和 HQL，但在 sqlserver 或 hsqldb 中使用从 hibernate 生成的 sql 的结果是相同的 - 我的日期没有过滤我的 JOINed 表。
问题的症结在于具有多个连接的 hql 查询，其中我要根据日期过滤器过滤其中一个连接。结果错误地包含了我的日期范围之外的数据。因此，例如，如果 startMonthAndYear 和 endMonthAndYear 分别是 01/2015 和 12/2015，我看到的结果(来自 saAllocationList)超出了该范围(例如 01/2010)。
HQL 有一个限制，即我不能在 JOIN 本身中执行子查询，我被告知这是可行的。我的问题是，似乎我写的每一种方式都应该做同样的事情..但我当然不理解 b/c 他们都没有像我想要的那样过滤日期。
我最初的 HQL 尝试在 WHERE 子句中进行过滤。
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");上面生成如下sql：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");我已经用几种不同的方式重写了 hsql：
在 where 子句中使用子查询来尝试获取要加载的 id 列表：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");生成以下sql：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");在 HQL 中使用 WITH 关键字尝试在 JOIN 本身中进行过滤：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");生成以下sql：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");但一切都返回相同的结果(包括我试图过滤的范围之外的日期)。
感谢您阅读，如果我可以提供更多信息，这将有助于让我知道这几天一直在摆弄什么都没有显示，而且我知道这是 b/c 我对 SQL 的理解不够好。谢谢！
编辑：
我添加了一个 sqlfiddle。 http://sqlfiddle.com/#!2/8348d/2 不幸的是，sqlfiddle 做了正确的事情(即过滤掉 2010 年的数据)。谁能让它做错事，然后向我解释原因？
我想通了，尽管它让我质疑我对hibernate中 JOIN 的理解。这个博客很好地解释了解决方案：
http://java-persistence-performance.blogspot.com/2012/04/objects-vs-data-and-filtering-join.html
我需要使用 JOIN FETCH：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");通过使用 JOIN FETCH，它强制 hibernate 执行限定符作为 fetch 的一部分。这本质上是一个 EAGER 加载集合 JOINed in WITH the qualifier apply。我的查询所做的(我认为)只是加载了合格的 JOINed 行的 id，但是当我访问集合时，它加载了整个集合(LAZILY)，这让我很失望，直到我注意到发生了延迟加载。
但是：正如博客所警告的那样 - 如果使用二级缓存，它会使缓存处于风险 b/c 当您限定 JOIN 时，您现在将值放入缓存中的方式确实与数据库。为了解决这个问题，您可以通过设置进一步告诉 hibernate 不要将内容放入缓存中：
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYear
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN WorkGroup workgroup1_ ON staffingas0_.WorkGroupID=workgroup1_.ID
LEFT OUTER JOIN PositionRole positionro2_ ON staffingas0_.PositionRoleID=positionro2_.ID
INNER JOIN Employee employeeex3_ ON staffingas0_.EmployeeID=employeeex3_.ID
INNER JOIN SAAllocation saallocati4_ ON staffingas0_.ID=saallocati4_.SAID
WHERE workgroup1_.ProgramWorkGroupID=? AND (saallocati4_.DateUnit BETWEEN ? AND ?)
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id AND sa.id IN
(SELECT saa.staffingAllocation.id
FROM SAAllocation saa
WHERE saa.sAAllocationPK.dateUnit
BETWEEN :startMonthAndYear AND :endMonthAndYear)
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=? AND (staffingas0_.ID IN (SELECT saallocati5_.SAID FROM SAAllocation saallocati5_ WHERE saallocati5_.DateUnit BETWEEN ? AND ?))
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.sAAllocationList sal WITH sal.sAAllocationPK.dateUnit BETWEEN
:startMonthAndYear AND :endMonthAndYear
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
WHERE wg.programWorkGroupID = :id
SELECT staffingas0_.ID AS ID1_6_, (trimmed BY me) FROM StaffingAllocation staffingas0_
INNER JOIN SAAllocation saallocati1_ ON staffingas0_.ID=saallocati1_.SAID AND (saallocati1_.DateUnit BETWEEN ? AND ?)
INNER JOIN WorkGroup workgroup2_ ON staffingas0_.WorkGroupID=workgroup2_.ID
LEFT OUTER JOIN PositionRole positionro3_ ON staffingas0_.PositionRoleID=positionro3_.ID
INNER JOIN Employee employeeex4_ ON staffingas0_.EmployeeID=employeeex4_.ID
WHERE workgroup2_.ProgramWorkGroupID=?
SELECT sa
FROM StaffingAssignment sa
INNER JOIN sa.workGroup wg
LEFT JOIN sa.positionRole pr
INNER JOIN sa.employee em
INNER JOIN FETCH sa.sAAllocationList sal
WHERE wg.programWorkGroupID = :id
AND sa.sAAllocationPK.dateUnit BETWEEN :startMonthAndYear AND :endMonthAndYearquery.setHint("javax.persistence.cache.storeMode","BYPASS");
query.setHint("javax.persistence.cache.retrieveMode","BYPASS");我没有使用二级缓存，我认为我不能用 HQL 完成上述操作，所以我不担心这个细节。
这让我很好奇 JOIN 在做什么，因为我认为它避免了 N 1 问题，但也许它只是加载一些 id 以避免必须进行数据库工作来确定要加载的 id ，但对象本身尚未加载。那是另一个问题/研究的主题。感谢那些花时间回答的人！
在使用 C# 和 NHibernate 时遇到了同样的问题。
您在数据库中的时间列是什么数据类型(DATE、DATETIME、TIMESTAMP)？查询中的数据类型必须与数据库中的相同。否则 WHERE 子句将无法正确应用。