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Throw away most of the existing logic for this, as it was very inefficient thanks to expensive sub-selects executed to collect ACL data that we very possibly would have no interest in dumping. Reduce the ACL handling in the initial per-object-type queries to be just collection of the catalog ACL fields, as it was originally. Fetch pg_init_privs data separately in a single scan of that catalog, and do the merging calculations on the client side. Remove the separate code path used for pre-9.6 source servers; there is no good reason to treat them differently from newer servers that happen to have empty pg_init_privs. Discussion: https://postgr.es/m/2273648.1634764485@sss.pgh.pa.us Discussion: https://postgr.es/m/7d7eb6128f40401d81b3b7a898b6b4de@W2012-02.nidsa.loc
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/.