Pengcheng Xiong created HIVE-13299:
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Summary: Column Names trimmed of leading and trailing spaces
Key: HIVE-13299
URL: https://issues.apache.org/jira/browse/HIVE-13299
Project: Hive
Issue Type: Bug
Reporter: Pengcheng Xiong
Assignee: Pengcheng Xiong
PROBLEM:
As per the Hive Language DDL:
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL
In Hive 0.12 and earlier, only alphanumeric and underscore characters are
allowed in table and column names.
In Hive 0.13 and later, column names can contain any Unicode character (see
HIVE-6013). Any column name that is specified within backticks (`) is treated
literally.
However column names
{code}
` left` resulted in `left`
` middle ` resulted in `middle`
`right ` resulted in `right`
`middle space` resulted in `middle space`
` middle space ` resulted in `middle space`
{code}
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