Hello! Is there any example could help in usage of COPY BINARY since I am a little bit discouraged by this part of PG manual == To determine the appropriate binary format for the actual tuple data you should consult the PostgreSQL source, in particular the *send and *recv functions for each column's data type (typically these functions are found in the src/backend/utils/adt/ directory of the source distribution). == I use libpq. And question number 0: how big perfomance difference between TEXT and BINARY formats ? Thanks. -- Best regards Ilja Golshtein ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings