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March 14, 2017 15:32
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This Pig Script is used to load the Pig Relation with input.csv file and with the defined schema in the AS block
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| --We use LOAD command to load data into a PIG Relation | |
| --The keyword "AS" indicates the Pig Relation creation with a defined schema | |
| data_with_schema = LOAD '/hdpcd/input/post11/input.csv' USING PigStorage(',') AS (station_name:chararray, year:int, month:int, dayofmonth:int, precipitation:int, maxtemp:int, mintemp:int); | |
| --Dumping the structure of the Pig Relation "data_with_schema" created in the above line | |
| DESCRIBE data_with_schema; | |
| --Dumping the actual data stored in Pig Relation "data_with_schema" | |
| DUMP data_with_schema; |
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