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修改字段类型

最近更新时间: 2025-02-18 16:02:00

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postgres=# alter table tbase alter column age type float8;    
ALTER TABLE
postgres=#  \d+ tbase
                                                   Table "public.tbase"
  Column  |       Type       |                   Modifiers                    | Storage  | Stats target |   Description   
----------+------------------+------------------------------------------------+----------+--------------+-----------------
 id       | integer          | not null default nextval('t_id_seq'::regclass) | plain    |              | 
 nickname | text             |                                                | extended |              | TDSQL PG呢称是大象
 age      | double precision |                                                | plain    |              | 
Has OIDs: no
Distribute By SHARD(id)
        Location Nodes: ALL DATANODES