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This patch adds a "binary" option to CREATE/ALTER SUBSCRIPTION. When that's set, the publisher will send data using the data type's typsend function if any, rather than typoutput. This is generally faster, if slightly less robust. As committed, we won't try to transfer user-defined array or composite types in binary, for fear that type OIDs won't match at the subscriber. This might be changed later, but it seems like fit material for a follow-on patch. Dave Cramer, reviewed by Daniel Gustafsson, Petr Jelinek, and others; adjusted some by me Discussion: https://postgr.es/m/CADK3HH+R3xMn=8t3Ct+uD+qJ1KD=Hbif5NFMJ+d5DkoCzp6Vgw@mail.gmail.com |
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README.git |
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download/ See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.