HASH_EXTERNAL_TOKEN

Returns a hash of a string token, for use with HADOOP_IMPERSONATION_CONFIG_CHECK. Call HASH_EXTERNAL_TOKEN with the delegation token you expect Vertica to use and compare it to the hash in the output of HADOOP_IMPERSONATION_CONFIG_CHECK.

This is a meta-function. You must call meta-functions in a top-level SELECT statement.

Behavior type

Syntax

HASH_EXTERNAL_TOKEN( 'token' )

Arguments

token

A string specifying the token to hash. The token is configured in the HadoopImpersonationConfig parameter.

Privileges

This function does not require privileges.

Examples

The following query tests the expected value shown in the example on the HADOOP_IMPERSONATION_CONFIG_CHECK reference page.

=> SELECT HASH_EXTERNAL_TOKEN('RANDOM-TOKEN-STRING');
hash_external_token
---------------------
b3dd9e71cd695d91
(1 row)