THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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Return Type | Name(Signature) | Description | OSS |
|---|---|---|---|
string | mask(string str[, string upper[, string lower[, string number]]]) | Returns a masked version of str. By default, upper case letters are converted to "X", lower case letters are converted to "x" and numbers are converted to "n". Example: mask("abcd-EFGH-8765-4321") results in xxxx-XXXX-nnnn-nnnn. You can override the characters used in the mask by supplying additional arguments: the second argument controls the mask character for upper case letters, the third argument for lower case letters, and the fourth argument for numbers. For example, mask("abcd-EFGH-8765-4321", "U", "l", "#") results in llll-UUUU-####-####. | |
| string | mask_first_n(string str[, int n]) | Returns a masked version of str with the first n values masked. Upper case letters are converted to "X", lower case letters are converted to "x" and numbers are converted to "n". For example, mask_first_n("1234-5678-8765-4321", 4) results in nnnn-5678-8765-4321. | GenericUDFMaskFirstN |
| string | mask_last_n(string str[, int n]) | Returns a masked version of str with the last n values masked. Upper case letters are converted to "X", lower case letters are converted to "x" and numbers are converted to "n". For example, mask_last_n("1234-5678-8765-4321", 4) results in 1234-5678-8765-nnnn. | GenericUDFMaskLastN |
| string | mask_show_first_n(string str[, int n]) | Returns a masked version of str, showing the first n characters unmasked. Upper case letters are converted to "X", lower case letters are converted to "x" and numbers are converted to "n". For example, mask_show_first_n("1234-5678-8765-4321", 4) results in 1234-nnnn-nnnn-nnnn. | GenericUDFMaskShowFirstN |
| string | mask_show_last_n(string str[, int n]) | Returns a masked version of str, showing the last n characters unmasked. Upper case letters are converted to "X", lower case letters are converted to "x" and numbers are converted to "n". For example, mask_show_last_n("1234-5678-8765-4321", 4) results in nnnn-nnnn-nnnn-4321. | GenericUDFMaskShowLastN |
| string | mask_hash(string|char|varchar str) | Returns a hashed value based on str. The hash is consistent and can be used to join masked values together across tables. This function returns null for non-string types. | GenericUDFMaskHash |
Miscellaneous Functions
In Hive several built-in functions do not belong to any categories above. These are the special functions that Hive has.
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