org.apache.iotdb.spark.tsfile.qp

类 QueryProcessor

java.lang.Object

org.apache.iotdb.spark.tsfile.qp.QueryProcessor

public class QueryProcessor
extends Object

This class is used to convert information given by sparkSQL to construct TSFile's query plans. For TSFile's schema differ from SparkSQL's table schema e.g. TSFile's SQL: select s1,s2 from root.car.d1 where s1 = 10 SparkSQL's SQL: select s1,s2 from XXX where delta_object = d1

构造器概要

构造器

构造器和说明
QueryProcessor()

方法概要

限定符和类型	方法和说明
List<TSQueryPlan>	generatePlans(FilterOperator filter, List<String> paths, List<String> columnNames, TsFileSequenceReader in, Long start, Long end)

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

QueryProcessor

public QueryProcessor()

方法详细资料

generatePlans

public List<TSQueryPlan> generatePlans(FilterOperator filter,
                                       List<String> paths,
                                       List<String> columnNames,
                                       TsFileSequenceReader in,
                                       Long start,
                                       Long end)
                                throws QueryProcessorException,
                                       IOException

抛出:

QueryProcessorException

IOException