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@@ -230,7 +230,7 @@ class HiveServer2Dbms(object):
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if new_table_name:
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table_name = new_table_name
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hql += ' RENAME TO `%s`' % table_name
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- elif comment:
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+ elif comment is not None:
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hql += " SET TBLPROPERTIES ('comment' = '%s')" % comment
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elif tblproperties:
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hql += " SET TBLPROPERTIES (%s)" % ' ,'.join("'%s' = '%s'" % (k, v) for k, v in tblproperties.items())
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