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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 ','
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Using the \copy command to import data to a table on a PostgreSQL DB instance. The PostgreSQL \copy command is a meta-command available from the psql interactive client tool. You can use \copy to import data into a table on your RDS for PostgreSQL DB instance.
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
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