Java 错误：列"；这个“phitorsionangle”；必须出现在GROUP BY子句中或在聚合函数中使用
我在sql查询方面遇到了一些问题。我正在使用Hibernate条件构建查询。我从数据库中创建了一些容器，方法是将值舍入一定的间隔（容器大小），然后对它们进行分组。当我直接在SQL中尝试使用查询时，效果非常好： SELECT floor(phiTorsionAngle / 2) * 2 as phiTorsionAngleBin, floor(psiTorsionAngle / 2) * 2 as psiTorsionAngleBin, floor(phiTorsionAngle / 2) + 180 as phiTorsionAngleBinIndex, floor(psiTorsionAngle / 2) + 180 as psiTorsionAngleBinIndex, count(*) as numberOfResidues FROM residue WHERE phitorsionangle IS NOT NULL AND psitorsionangle IS NOT NULL GROUP BY phiTorsionAngleBin, psiTorsionAngleBinJava 错误：列"；这个“phitorsionangle”；必须出现在GROUP BY子句中或在聚合函数中使用,java,hibernate,postgresql,group-by,criteria,Java,Hibernate,Postgresql,Group By,Criteria,我在sql查询方面遇到了一些问题。我正在使用Hibernate条件构建查询。我从数据库中创建了一些容器，方法是将值舍入一定的间隔（容器大小），然后对它们进行分组。当我直接在SQL中尝试使用查询时，效果非常好： SELECT floor(phiTorsionAngle / 2) * 2 as phiTorsionAngleBin, floor(psiTorsionAngle / 2) * 2 as psiTorsionAngleBin, floor(phiTorsi
ScrollableResults phiPsiBins = createCriteria()
.setProjection(Projections.projectionList()
.add(Projections.sqlGroupProjection(
"floor(phiTorsionAngle / " + binSize + ") * " + binSize + " as phiTorsionAngleBin, " +
"floor(psiTorsionAngle / " + binSize + ") * " + binSize + " as psiTorsionAngleBin, " +
"floor(phiTorsionAngle / " + binSize + ") + 180 as phiTorsionAngleBinIndex, " +
"floor(psiTorsionAngle / " + binSize + ") + 180 as psiTorsionAngleBinIndex, " +
"count(*) as numberOfResidues",
"phiTorsionAngleBin, psiTorsionAngleBin",
new String[] {"phiTorsionAngleBin", "psiTorsionAngleBin", "phiTorsionAngleBinIndex", "psiTorsionAngleBinIndex", "numberOfResidues"},
new Type[] {Hibernate.DOUBLE, Hibernate.DOUBLE, Hibernate.INTEGER, Hibernate.INTEGER, Hibernate.INTEGER})))
.add(Restrictions.isNotNull("phiTorsionAngle"))
.add(Restrictions.isNotNull("psiTorsionAngle"))
.setResultTransformer(Transformers.aliasToBean(PhiPsiBinResult.class))
.setCacheMode(CacheMode.IGNORE)
.scroll(ScrollMode.FORWARD_ONLY);
更新：直到查询完成，我才真正尝试让它运行，我得到了一个Java堆外空间错误，因为它试图加载大约1900万个条目，因此，现在将phiTorsionAngle和psiTorsionAngle添加到分组中是完全不可能的：）我想我还不够清楚：我无法按phiTorsionAngle或psiTorsionAngle进行分组，因为这违背了查询的目的。我需要一组phiTorsionAngleBin和psiTorsionAngleBin。此外，正如您在我的更新中所读到的：在Java中执行您所说的操作将导致堆空间错误，因为它将尝试将大约1900万个结果加载到内存中。尝试启用SQL日志记录：
SELECT phiTorsionAngleHalfFloor * 2 as phiTorsionAngleBin,
psiTorsionAngleHalfFloor * 2 as psiTorsionAngleBin,
phiTorsionAngleHalfFloor + 180 as phiTorsionAngleBinIndex,
psiTorsionAngleHalfFloor + 180 as psiTorsionAngleBinIndex,
numberOfResidues
FROM (
SELECT FLOOR(phiTorsionAngleHalf / 2) AS phiTorsionAngleHalfFloor,
FLOOR(psiTorsionAngleHalf / 2) AS psiTorsionAngleHalfFloor,
COUNT(*) AS numberOfResidues
FROM residue
WHERE phitorsionangle IS NOT NULL
AND psitorsionangle IS NOT NULL
GROUP BY
phiTorsionAngleHalfFloor, psiTorsionAngleHalfFloor
) q