feat: copy into table with columns.

[youngsofun]

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Summary

• support PARQUET and non-PARQUET
• support PARQUET copy with transform

e.g.

copy into test_copy_p3(b, c) from @my_stage FILE_FORMAT = (type = CSV)
copy into test_copy_p3(b, c) from @my_stage FILE_FORMAT = (type = PARQUET)
copy into test_copy_p3(b, c) from (select t.b+1, t.c+1 from @my_stage t) FILE_FORMAT = (type = PARQUET)"

Closes #10582

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Name	Status	Preview	Comments	Updated (UTC)
databend	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	May 11, 2023 0:21am

[BohuTANG]

This is a transform feature during data loading, it would be greate we introduce it in the doc, cc @soyeric128