Sun Rui created HIVE-7097:
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Summary: The Support for REGEX Column Broken in HIVE 0.13
Key: HIVE-7097
URL: https://issues.apache.org/jira/browse/HIVE-7097
Project: Hive
Issue Type: Bug
Components: Query Processor
Affects Versions: 0.13.0
Reporter: Sun Rui
The Support for REGEX Column is OK in HIVE 0.12, but is broken in HIVE 0.13.
For example:
{code:sql}
select `key.*` from src limit 1;
{code:sql}
will fail in HIVE 0.13 with the following error from SemanticAnalyzer:
{noformat}
FAILED: SemanticException [Error 10004]: Line 1:7 Invalid table alias or column
reference 'key.*': (possible column names are: key, value)
{noformat}
This issue is related to HIVE-6037. When set
"hive.support.quoted.identifiers=none", the issue will be gone.
I am not sure the configuration was intended to break regex column. But at
least the documentation needs to be updated:
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+Select#LanguageManualSelect-REGEXColumnSpecification
I would argue backward compatibility is more important.
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