Herman Chen created IMPALA-8335:
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Summary: Avro support requires all lowercase fields
Key: IMPALA-8335
URL: https://issues.apache.org/jira/browse/IMPALA-8335
Project: IMPALA
Issue Type: Question
Components: Catalog, Docs
Reporter: Herman Chen
I am using external tables where the data resides in S3 in avro format. My avdl
contains fields such as:
string id;
string sql;
string templateId;
union \{ null, string } pool;
union \{ null, string } user;
string startTime;
string endTime;
However, Impala is able to read the all-lowerfields like "id" and "sql", but
for any field containing uppercase like "templateId" or "startTime", Impala
shows them all as NULL. I believe this is due to how Impala treats all
identifier as lowercase, including column name. Is it so? Is there any way to
work around it? If not it poses a major roadblock for working with pre-existing
avro data.
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