COPY FROM
copies data from a file or standard input into a table and appends the data to the table contents. COPY
is non-parallel: data is loaded in a single process using the Greenplum master instance. Using COPY
is only recommended for very small data files.
The COPY
source file must be accessible to the master host. Specify the COPY
source file name relative to the master host location.
Greenplum copies data from STDIN
or STDOUT
using the connection between the client and the master server.
Parent topic: Loading and Unloading Data