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Make it work more like FDW plans do: instead of assuming that there are expressions in a CustomScan plan node that the core code doesn't know about, insist that all subexpressions that need planner attention be in a "custom_exprs" list in the Plan representation. (Of course, the custom plugin can break the list apart again at executor initialization.) This lets us revert the parts of the patch that exposed setrefs.c and subselect.c processing to the outside world. Also revert the GetSpecialCustomVar stuff in ruleutils.c; that concept may work in future, but it's far from fully baked right now. |
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configure | ||
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COPYRIGHT | ||
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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: http://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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.