foo.json

{
  "type" : "index",
  "spec" : {
    "dataSchema" : {
      "dataSource" : "foo",
      "parser" : {
        "type" : "string",
        "parseSpec":{
          "format" : "tsv",
          "timestampSpec" : {
            "column" : "time"
          },
          "columns" : ["time","gwid","country","purchase","section", "price"],
          "dimensionsSpec" : {
            "dimensions" : ["time","gwid","country","purchase","section"]
          }
        }
      },
      "metricsSpec" : [
        {
          "type" : "count",
          "name" : "count"
        },
        {
          "type" : "doubleSum",
          "name" : "priceSum",
          "fieldName" : "price"
        }
      ],
      "granularitySpec" : {
        "type" : "uniform",
        "segmentGranularity" : "HOUR",
        "queryGranularity" : "NONE",
        "intervals" : [ "2016-01-19/2016-01-30" ]
      }
    },
    "ioConfig" : {
      "type" : "index",
      "firehose" : {
        "type" : "local",
        "baseDir" : "/tmp/test/",
        "filter" : "*"
       }
    },
    "tuningConfig" : {
      "type" : "index",
      "targetPartitionSize" : -1,
      "rowFlushBoundary" : 0,
      "numShards": 1
    }
  }
}