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Alphanumeric (a-z,A-Z, 0-9)
- Space
Dash ( - )
Underscore ( _ )
- Round brackets ( () )
Period ( . )
| Note | ||
|---|---|---|
| ||
The order that you determine in a function for a CSV file is not guaranteed. For example, in a Map processor or Amazon S3 forwarder, if you have headers that are a mixture of numeric and alphabetical headers, orders the numeric headings followed by alphabetical headers. |
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