When copying data from a file, you get the count of rows in psql with the "command tag":
db=# COPY t FROM '/var/lib/postgres/test.sql'; COPY 10
I need the number of rows and would like to avoid a redundant
count() on the table.
Is there a way to get this count from
COPY directly in a PL/pgSQL function?
As far as I know there is none, but maybe I am missing something?
For PostgreSQL 9.2. But any option in any version would be of interest.
Not in PG 9.2, but there is in PG 9.3 courtesy of Pavel (E 188.8.131.52):
Allow PL/pgSQL to access the number of rows processed by COPY (Pavel Stehule)
The command is GET DIAGNOSTICS x = ROW_COUNT.