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Hello,
The below Athena UNLOAD query with the WITH clause worked fine for me.
UNLOAD(select * from table)
to 's3://bucket/'
with(format='parquet',compression='snappy')
You can find some examples here
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AWS 官方已更新 3 年前- AWS 官方已更新 1 年前
Thanks for your answer, but I mean the "classic" SQL WITH clause (for aliasing whole queries), not the with clause for adding the UNLOAD options.
Something like:
WITH table1 as (SELECT raw.field1, raw.field2, raw2.field1, raw2.field1 from raw, raw2 ....), table2 as (SELECT raw3.field1, raw3.field2, raw3.field3 from raw3) UNLOAD (SELECT * from table1, table2 ....) to 's3://bucket/' with(format='parquet',compression='snappy')