背景：postsql 初始接触，把字段全部大写了。
postsql字段需要小写，不然会出现以下错误
Caused by: org.postgresql.util.PSQLException: ERROR: column "loginid" of relation "userinfo" does not exist位置：30at org.postgresql.core.v3.QueryExecutorImpl.receiveErrorResponse(QueryExecutorImpl.java:2101)at org.postgresql.core.v3.QueryExecutorImpl.processResults(QueryExecutorImpl.java:1834)at org.postgresql.core.v3.QueryExecutorImpl.execute(QueryExecutorImpl.java:255)at org.postgresql.jdbc2.AbstractJdbc2Statement.execute(AbstractJdbc2Statement.java:510)at org.postgresql.jdbc2.AbstractJdbc2Statement.executeWithFlags(AbstractJdbc2Statement.java:386)at org.postgresql.jdbc2.AbstractJdbc2Statement.executeUpdate(AbstractJdbc2Statement.java:332)at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:104)at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:46)at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2265)... 78 more
