将psql输出保存到csv文件

Question

I have a query written in a file located at /path/to/query. How can I save the output result to a csv file, without using COPY in the query? I tried the following command, but the output file's fields are separated by " | ".

psql -U username -d dbname -f /path/to/query -o /path/to/output/file -F ','

Answer 1

It is not explained in the documentation, but the -F option requires the -A option (unaligned table output) to work:

psql -U username -d dbname -f /path/to/query -o /path/to/output/file -F ',' -A

If you don't wish the headers in your csv, this means, without extra rows at the top and at the bottom, use the -t option too.

psql -U username -d dbname -f /path/to/query -o /path/to/output/file -F ',' -A -t

From the help:

-A, --no-align unaligned table output mode
-F, --field-separator=STRING set field separator (default: "|")
-t, --tuples-only print rows only