Guru Prabhakar Reddy Marthala created SPARK-20592:
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Summary: Alter table concatenate is not working as expected.
Key: SPARK-20592
URL: https://issues.apache.org/jira/browse/SPARK-20592
Project: Spark
Issue Type: Bug
Components: PySpark
Affects Versions: 2.1.0
Reporter: Guru Prabhakar Reddy Marthala
Created a table using CTAS from csv to parquet.Parquet table generated numerous
small files.tried alter table concatenate but it's not working as expected.
spark.sql("CREATE TABLE flight.flight_data(year INT, month INT, day INT,
day_of_week INT, dep_time INT, crs_dep_time INT, arr_time INT,
crs_arr_time INT, unique_carrier STRING, flight_num INT, tail_num STRING,
actual_elapsed_time INT, crs_elapsed_time INT, air_time INT, arr_delay
INT, dep_delay INT, origin STRING, dest STRING, distance INT, taxi_in
INT, taxi_out INT, cancelled INT, cancellation_code STRING, diverted
INT, carrier_delay STRING, weather_delay STRING, nas_delay STRING,
security_delay STRING, late_aircraft_delay STRING) ROW FORMAT DELIMITED
FIELDS TERMINATED BY ',' stored as textfile")
spark.sql("load data local INPATH 'i:/2008/2008.csv' INTO TABLE
flight.flight_data")
spark.sql("create table flight.flight_data_pq stored as parquet as select *
from flight.flight_data")
spark.sql("create table flight.flight_data_orc stored as orc as select * from
flight.flight_data")
pyspark.sql.utils.ParseException: u'\nOperation not allowed: alter table
concatenate(line 1, pos 0)\n\n== SQL ==\nalter table flight_data.flight_data_pq
concatenate\n^^^\n'
Tried on both orc and parquet format.It's not working.
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