pgsql timestamp without time zone ＞ character varying解决方案

abments2025-11-21 22:32

问题背景

最近给一个项目从mysql迁移到pgsql中去，mysql中的日期大于小于等于操作符可以直接对string生效，会进行自动转换，但是在pgsql下不行，并且会触发"Cause: org.postgresql.util.PSQLException: ERROR: operator does not exist: timestamp without time zone >= character varying"，项目是springboot2+mybatis plus框架，该任务由定时任务执行。

报错信息：

shell 复制代码

org.springframework.jdbc.BadSqlGrammarException: 
### Error querying database.  Cause: org.postgresql.util.PSQLException: ERROR: operator does not exist: timestamp without time zone >= character varying
  建议：No operator matches the given name and argument types. You might need to add explicit type casts.
  位置：64
### The error may exist in com/common/mapper/SysDictTypeMapper.java (best guess)
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT COUNT(*) AS total FROM sys_dict_type WHERE (create_time BETWEEN ? AND ?)
### Cause: org.postgresql.util.PSQLException: ERROR: operator does not exist: timestamp without time zone >= character varying
  建议：No operator matches the given name and argument types. You might need to add explicit type casts.
  位置：64
; bad SQL grammar []

解决方案

传入参数时把数据格式转换为date类型，不可以是string类型