support for expansion of * in the project part of a query

[kant777]

Currently pinot cannot support

select *, device='phone' from pageviews

would be great to support the above syntax.

[PrachiPrakash]

@xiangfu0 is this still a required feature, was playing around with the code would like to give it a try

[shauryachats]

@kant777 you could try using

select *, 'phone' device from pageviews

which should do the same thing effectively.

[Jackie-Jiang]

Expansion of * is supported in #7959