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https://issues.apache.org/jira/browse/HIVE-18632?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
shiva updated HIVE-18632:
-------------------------
Component/s: Clients
> TYPE CASTING ERROR: CONVERTING FORM INT TO STRING
> -------------------------------------------------
>
> Key: HIVE-18632
> URL: https://issues.apache.org/jira/browse/HIVE-18632
> Project: Hive
> Issue Type: Bug
> Components: Clients, Database/Schema
> Affects Versions: 1.1.0
> Reporter: shiva
> Priority: Critical
> Labels: AVRO
>
> HI,
> AVRO source file field data type have int but we want to load the data using
> the string,
> we have created the AVSC schema for that field has string.
> getting error while doing the select * from table name;
> 1 >> Created a table in Hive with AVRO data.
> CREATE EXTERNAL TABLE tweets (username string, tweet string, timestamp bigint)
> COMMENT 'A table backed by Avro data with the Avro schema stored in HDFS'
> ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.avro.AvroSerDe'
> STORED AS
> INPUTFORMAT 'org.apache.hadoop.hive.ql.io.avro.AvroContainerInputFormat'
> OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.avro.AvroContainerOutputFormat'
> LOCATION '/home/neha/test_data/avro_create_data'
> TBLPROPERTIES
> ('avro.schema.literal'='{"namespace":"com.miguno.avro","name":"Tweet","type":"record","fields":[
> {"name" : "username","type" : "string","doc" : "Name of the user account on
> Twitter.com"}
> ,
> {"name" : "tweet","type":"string","doc" : "The content of the Twitter
> message"}
> ,
> {"name" : "timestamp", "type" : "long", "doc" : "Unix epoch time in seconds"}
> ]}');
> 2 >> Altered type of a column (to a compatible type) using ALTER TABLE. In
> this example, altered type for column "timestamp" from "long" to "int".
> ALTER TABLE tweets SET TBLPROPERTIES
> ('avro.schema.literal'='{"namespace":"com.miguno.avro","name":"Tweet","type":"record","fields":[
> {"name" : "username","type" : "string","doc" : "Name of the user account on
> Twitter.com"}
> ,
> {"name" : "tweet","type":"string","doc" : "The content of the Twitter
> message"}
> ,
> {"name" : "timestamp", "type" : "int", "doc" : "Unix epoch time in seconds"}
> ]}');
> 3 >> Now, a select query on this table fails with following error.
> hive> select * from tweets;
> OK
> Failed with exception java.io.IOException:org.apache.avro.AvroTypeException:
> Found "long", expecting "int"
> Time taken: 4.514 seconds
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