Make unaliased_identifier return input symbol if it does not contain an alias
Make unaliased_identifier return input symbol if it does not contain an alias

Also, don't create symbols for the returned column value if
it does contain an alias, just use a SQL::QualifiedIdentifier
or SQL::Identifier with the string.

offshore-safety/sequel,beni55/sequel,seeARMS/sequel,davidbegin/sequel,knut2/sequel,beni55/sequel,freshpay/sequel,dennis-d/custom_sequel,reubano/sequel,dennis-d/custom_sequel,reubano/sequel,yazshel/sequel,t-morgan/sequel,offshore-safety/sequel,knut2/sequel,nicohvi/sequel,nicohvi/sequel,nju520/sequel,mpalmer/sequel,uhoh-itsmaciek/sequel,yazshel/sequel,offshore-safety/sequel,gferguson-gd/sequel,uhoh-itsmaciek/sequel,seeARMS/sequel,Marketcircle/sequel,nju520/sequel,gferguson-gd/sequel,freshpay/sequel,mpalmer/sequel,pfarrell/sequel,pfarrell/sequel,davidbegin/sequel,t-morgan/sequel