求助：mogodb怎么使用datax实现增量同步，query条件怎么写？

"column": [
{
"index":0,
"name": "_id",
"type": "string"
},
{
"index":1,
"name": "uid",
"type": "String"
},
{
"index":2,
"name": "taskCode",
"type": "string"
},
{
"index":3,
"name": "taskName",
"type": "string"
},
{
"index":4,
"name": "rewardType",
"type": "Int"
},
{
"index":5,
"name": "rewardContentId",
"type": "string"
},
{
"index":6,
"name": "terminal",
"type": "Int"
},
{
"index":7,
"name": "desc",
"type": "string"
},
{
"index":8,
"name": "createTime",
"type": "Date"
}
],
"query":"{createTime:{ $gte: ${t1}, $lte: ${t2} }}"
}
query这样写，但是一条数据都没有查出来，mogodb是ISOdate格式，${t1}取得的值是1622995200101，我t1的变量这样直接用时间戳可以吗，还是跟mogodb一样，使用ISODate，两种格式都用过，但现在一条数据也没有查到...求助~

Begin with the MongoDB query shown in the issue and the ${t1}/${t2} parameter values; compare the configured createTime type with the values sent to MongoDB. The payload names no source file or test. Done means identifying a reproducible cause and specifying the supported query or parameter format, or confirming that a product change is required.

Written by the indexing model from the issue text.