[asnr]

In Vertica, CURRENT_TIMESTAMP is a function that accepts one argument, as per the docs. The docs provide this example query demonstrating its usage:

SELECT CURRENT_TIMESTAMP(1) AS time;

Currently, queryparser fails to parse this query. This PR fixes this behaviour.

I've added this example to the tests, but I wasn't sure of where the best place to put it was. Please let me know if it is best placed somewhere else :)

[h4v0kh3l1]

Change looks good, thanks for contributing! I'm guessing sometime after Vertica 7.2 they changed the function arg from optional to required.

If you haven't signed the CLA yet, please do, and I can get this pulled in.

[asnr]

Unfortunately I'm not able to sign the CLA. I will close this PR.

[CLAassistant]

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