content: /*
   * 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
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * 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.carbondata.core.stats;
  
  public interface QueryStatisticsConstants {
  
    // driver side
    String SQL_PARSE = "Time taken to parse sql In Driver Side";
  
    String LOAD_META = "Time taken to load meta data In Driver Side";
  
    String LOAD_BLOCKS_DRIVER = "Time taken to load the Block(s) In Driver Side "
        + "with Block count ";
  
    String BLOCK_ALLOCATION = "Total Time taken in block(s) allocation";
  
    String BLOCK_IDENTIFICATION = "Time taken to identify Block(s) to scan";
  
    // executor side
    String EXECUTOR_PART = "Total Time taken to execute the query in executor Side";
  
    String LOAD_BLOCKS_EXECUTOR = "Time taken to load the Block(s) In Executor";
  
    String SCAN_BLOCKS_NUM = "The num of blocks scanned";
  
    String SCAN_BLOCKlET_TIME = "Time taken to scan blocks";
  
    String READ_BLOCKlET_TIME = "Time taken to read blocks";
  
    String LOAD_DICTIONARY = "Time taken to load the Dictionary In Executor";
  
    String PREPARE_RESULT = "Total Time taken to prepare query result";
  
    String RESULT_SIZE = "The size of query result";
  
    String TOTAL_BLOCKLET_NUM = "The num of total blocklet";
  
    String VALID_SCAN_BLOCKLET_NUM = "The num of valid scanned blocklet";
  
    String BLOCKLET_SCANNED_NUM = "The num of blocklet scanned";
  
    String VALID_PAGE_SCANNED = "The number of valid page scanned";
  
    String TOTAL_PAGE_SCANNED = "The number of total page scanned";
  
    String PAGE_SCANNED = "The number of page scanned";
  
    /**
     * measure filling time includes time taken for reading all measures data from a given offset
     * and adding each column data to an array. Includes total time for 1 query result iterator.
     */
    String MEASURE_FILLING_TIME = "measure filling time";
  
    /**
     * key column filling time includes time taken for reading all dimensions data from a given offset
     * and filling each column data to byte array. Includes total time for 1 query result iterator.
     */
    String KEY_COLUMN_FILLING_TIME = "key column filling time";
  
    /**
     * Time taken to uncompress a page data and decode dimensions and measures data in that page
     */
    String PAGE_UNCOMPRESS_TIME = "page uncompress time";
  
    /**
     * total of measure filling time, dimension filling time and page uncompressing time
     */
    String RESULT_PREP_TIME = "result preparation time";
  
    // clear no-use statistics timeout
    long CLEAR_STATISTICS_TIMEOUT = 60 * 1000 * 1000000L;
  
  }
  
  
  