fix(planner): Fix order by column with invalid table name

[leiysky]

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Summary

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1 Ignored Deployment

Name	Status	Preview	Updated
databend	⬜️ Ignored (Inspect)		Jul 29, 2022 at 10:13AM (UTC)

[BohuTANG]

sqllogic test failed :/

[BohuTANG]

error: needlessly taken reference of both operands
  --> query/src/sql/planner/binder/sort.rs:90:36
   |
90 | ...                   && &ident.name == &item.column_name =>
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: `-D clippy::op-ref` implied by `-D warnings`
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
help: use the values directly
   |
90 |                                 && ident.name == item.column_name =>
   |                                    ~~~~~~~~~~    ~~~~~~~~~~~~~~~~

error: needlessly taken reference of both operands
  --> query/src/sql/planner/binder/sort.rs:96:40
   |
96 | ...                   && &ident.name == &item.column_name =>
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#op_ref
help: use the values directly
   |
96 |                                     && ident.name == item.column_name =>
   |                                        ~~~~~~~~~~    ~~~~~~~~~~~~~~~~