MAPREDUCE服务 MRS-ADD COLUMNS:示例

时间:2024-11-28 01:44:18

示例

  • ALTER TABLE carbon ADD COLUMNS (a1 INT, b1 STRING);
  • ALTER TABLE carbon ADD COLUMNS (a1 INT, b1 STRING) TBLPROPERTIES('COLUMNPROPERTIES.b1.shared_column'='sharedFolder.b1');
  • ALTER TABLE carbon ADD COLUMNS (a1 INT, b1 STRING) TBLPROPERTIES('DEFAULT.VALUE.a1'='10');
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