dataSourceKey: defaultDS
destination: example
groupId: g1
esMapping:
  _index: customer
  _id: id
  relations:
    customer_order:
      name: customer
  sql: "select t.id, t.name, t.email from customer t"
  etlCondition: "where t.c_time>={}"
  commitBatch: 3000


#{
#  "mappings":{
#    "_doc":{
#      "properties":{
#        "id": {
#          "type": "long"
#        },
#        "name": {
#          "type": "text"
#        },
#        "email": {
#          "type": "text"
#        },
#        "order_id": {
#          "type": "long"
#        },
#        "order_serial": {
#          "type": "text"
#        },
#        "order_time": {
#          "type": "date"
#        },
#        "customer_order":{
#          "type":"join",
#          "relations":{
#            "customer":"order"
#          }
#        }
#      }
#    }
#  }
#}