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Frédéric TERRAZZONI updated HIVE-8359: -------------------------------------- Description: Tried write a map<string,string> column in a Parquet file. The table should contain : {code} {"key3":"val3","key4":null} {"key3":"val3","key4":null} {"key1":null,"key2":"val2"} {"key3":"val3","key4":null} {"key3":"val3","key4":null} {code} ... and when you do a query like {code}SELECT * from mytable{code} We can see that the table is corrupted : {code} {"key3":"val3"} {"key4":"val3"} {"key3":"val2"} {"key4":"val3"} {"key1":"val3"} {code} I've not been able to read the Parquet file in our software afterwards, and consequently I suspect it to be corrupted. For those who are interested, I generated this Parquet table from an Avro file. was: Tried write a map<string,string> column in a Parquet file. The table should contain : {code} {"key3":"val3","key4":null} {"key3":"val3","key4":null} {"key1":null,"key2":"val2"} {"key3":"val3","key4":null} {"key3":"val3","key4":null} {code} ... and when you do a query like {code}SELECT * from mytable{code} We can see that the table is corrupted : {code} {"key3":"val3"} {"key4":"val3"} {"key3":"val2"} {"key4":"val3"} {"key1":"val3"} {code} I've not been able to read the Parquet file in our software afterwards, and consequently I suspect it to be corrupted. For those who are interested, I generated this Parquet table from an Avro file. Don't know how to attach it here though ... :) > Map containing null values are not correctly written in Parquet files > --------------------------------------------------------------------- > > Key: HIVE-8359 > URL: https://issues.apache.org/jira/browse/HIVE-8359 > Project: Hive > Issue Type: Bug > Affects Versions: 0.13.1 > Reporter: Frédéric TERRAZZONI > > Tried write a map<string,string> column in a Parquet file. The table should > contain : > {code} > {"key3":"val3","key4":null} > {"key3":"val3","key4":null} > {"key1":null,"key2":"val2"} > {"key3":"val3","key4":null} > {"key3":"val3","key4":null} > {code} > ... and when you do a query like {code}SELECT * from mytable{code} > We can see that the table is corrupted : > {code} > {"key3":"val3"} > {"key4":"val3"} > {"key3":"val2"} > {"key4":"val3"} > {"key1":"val3"} > {code} > I've not been able to read the Parquet file in our software afterwards, and > consequently I suspect it to be corrupted. > For those who are interested, I generated this Parquet table from an Avro > file. -- This message was sent by Atlassian JIRA (v6.3.4#6332)