dev/core#1434 Fix table alias used in select when ouputting as a chart

[seamuslee001]

Overview

Fixes a DB syntax error when trying to output the click through mailing report as a bar / pie chart

Before

DB Syntax Error

After

No Error

ping @eileenmcnaughton @xurizaemon @demeritcowboy

[civibot]

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[yashodha]

@seamuslee001 tested this, works fine. It looks like a typo that has been corrected by the PR.

[seamuslee001]

Thanks @yashodha

[eileenmcnaughton]

thanks @yashodha !