在 Athena AWS 中重命名列名

Question

I have tried several ways to rename some column name in athena table.

after reading the following article

https://docs.aws.amazon.com/athena/latest/ug/alter-table-replace-columns.html

But I have get a no luck on it.

I tried

ALTER TABLE "users_data"."values_portions" REPLACE COLUMNS ('username/teradata' 'String', 'username_teradata' 'String') 

Got error

no viable alternative at input 'alter table "users_data"."values_portions" replace' (service: amazonathena; status code: 400; error code: invalidrequestexception; request id: 23232ssdds.....; proxy: null)

Answer 1

You can refer to this document which talks about renaming columns. The query that you are trying to run will replace all the columns in the existing table with provided column list.

One strategy for renaming columns is to create a new table based on the same underlying data, but using new column names. The example mentioned in the link creates a new orders_parquet table called orders_parquet_column_renamed. The example changes the column o_totalprice name to o_total_price and then runs a query in Athena.

Another way of changing the column name is by simply going to AWS Glue -> Select database -> select table -> edit schema -> double click on column name -> type in new name -> save .