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Erlang: qlc:info throws an error while qlc:eval does not - why?

root@test # erl

Erlang R14B02 (erts-5.8.3) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]

 

Eshell V5.8.3  (abort with ^G)

1> Tmp = ets:new(test, [bag]), Ref = make_ref(),

1> qlc:eval(qlc:q([Ref1 || Ref1 <- ets:table(Tmp), Ref =:= Ref1])).

[]

2> qlc:info(qlc:q([Ref1 || Ref1 <- ets:table(Tmp), Ref =:= Ref1])).

"ets:table(16400,n          [{traverse,n            {select,n             [{'$1',n               [{'=:=',{const,#Ref<0.0.0.29>},'$1'}],n               ['$1']}]}}])"

3> halt().

       

root@test # erl

Erlang R14B02 (erts-5.8.3) [source] [64-bit] [smp:4:4] [rq:4] [async-threads:0] [kernel-poll:false]

 

Eshell V5.8.3  (abort with ^G)

1> Tmp = ets:new(test, [bag]), Ref = make_ref(),

1> qlc:eval(qlc:q([Ref1 || {Ref1} <- ets:table(Tmp), Ref =:= Ref1])).

[]

2> qlc:info(qlc:q([Ref1 || {Ref1} <- ets:table(Tmp), Ref =:= Ref1])).

** exception error: no match of right hand side value {error,{1,erl_parse,["syntax error before: ",["Ref"]]}}

     in function  qlc:abstract/3

     in call from qlc:abstract/3

     in call from qlc:abstract/4

     in call from qlc:info/2

3> halt().