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 Index Name  | 
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The index name uniquely identifies each range index.
The name must be in the following format:
Consist of 1-32 alphanumeric or underscore characters.
Must not contain any blanks, tabs or punctuation.
Must not begin with a numeric value.
Must be unique from any other package defined.
Examples
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 Correct  | 
 Incorrect  | 
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 _NAME_key1  | 
 1_key_NAME  | 
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 _NAME_key_NUMBER1  | 
 _NAME_key_(NUMBER1)  | 
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 _NAME_key_NUMBER2  | 
 _NAME key NUMBER2  | 
| 
 _NAME_key  | 
 _NAME_key;  |