MAPREDUCE服务 MRS-ADD COLUMNS:示例

时间:2024-11-28 20:08:13

示例

alter table h0 add columns(ext0 string);
alter table h0 add columns(new_col int not null comment 'add new column' after col1);
alter table complex_table add columns(col_struct.col_name string comment 'add new column to a struct col' after col_from_col_struct);
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