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   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you under the Apache License, Version 2.0 (the
   * "License"); you may not use this file except in compliance
   * with the License.  You may obtain a copy of the License at
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
 package org.apache.pig.builtin;
 import java.util.List;

MilliSecondsBetween returns the number of milliseconds between two DateTime objects

  • Jodatime:
  • ISO8601 Date Format:

 Example usage:

 ISOin = LOAD 'test.tsv' USING PigStorage('\t') AS (datetime, dt2:datetime);

 ISOin: {dt: datetime,dt2: datetime}



 diffs = FOREACH ISOin GENERATE YearsBetween(dt, dt2) AS years,
 MonthsBetween(dt, dt2) AS months,
 WeeksBetween(dt, dt2) AS weeks,
 DaysBetween(dt, dt2) AS days,
 HoursBetween(dt, dt2) AS hours,
 MinutesBetween(dt, dt2) AS mins,
 SecondsBetween(dt, dt2) AS secs;
 MilliSecondsBetween(dt, dt2) AS millis;

 DESCRIBE diffs;
 diffs: {years: long,months: long,weeks: long,days: long,hours: long,mins: long,secs: long,millis: long}

 DUMP diffs;


 public class MilliSecondsBetween extends EvalFunc<Long> {
     public Long exec(Tuple inputthrows IOException
         if (input == null || input.size() < 2) {
             return null;
         DateTime startDate = (DateTimeinput.get(0);
         DateTime endDate = (DateTimeinput.get(1);
         // Larger date first
         // Subtraction may overflow
         return startDate.getMillis() - endDate.getMillis();
     public Schema outputSchema(Schema input) {
         return new Schema(new Schema.FieldSchema(getSchemaName(this.getClass().getName().toLowerCase(), input), .));
     public List<FuncSpecgetArgToFuncMapping() throws FrontendException {
         List<FuncSpecfuncList = new ArrayList<FuncSpec>();
        Schema s = new Schema();
        s.add(new Schema.FieldSchema(null.));
        s.add(new Schema.FieldSchema(null.));
        funcList.add(new FuncSpec(this.getClass().getName(), s));
        return funcList;
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