如何在postgres前端COPY中指定选项卡

Question

我想使用psql"\ copy"命令将制表符分隔文件中的数据提取到Postgres中.我正在使用此命令:

\copy cm_state from 'state.data' with delimiter '\t' null as ;

但是我收到了这个警告(表格实际加载正常):

WARNING:  nonstandard use of escape in a string literal
LINE 1: COPY cm_state FROM STDIN DELIMITER '\t' NULL AS ';'
HINT:  Use the escape string syntax for escapes, e.g., E'\r\n'.

如果'\ t'不正确,如何指定标签？

Answer 1

使用E'\t'在那儿告诉PostgreSQL的有可能被转义字符:

\copy cm_state from 'state.data' with delimiter E'\t' null as ;

Answer 2

you can do this copy cm_state from stdin with (format 'text')