Apache SeaTunnel 究竟是什么？

env {
 job.mode = "BATCH"
}
source {
 FakeSource {
 result_table_name = "fake"
 row.num = 100
 schema = {
 fields {
 name = "string"
 age = "int"
 card = "int"
 }
 }
 }
}
transform {
 Filter {
 source_table_name = "fake"
 result_table_name = "fake1"
 fields = [name, card]
 }
}
sink {
 Clickhouse {
 host = "clickhouse:8123"
 database = "default"
 table = "seatunnel_console"
 fields = ["name", "card"]
 username = "default"
 password = ""
 source_table_name = "fake1"
 }
}