5a7d36973a
to copy the whole plan tree before invoking adjust_plan_varnos(); else if there is any multiply-linked substructure, the latter might increment some Var's varno twice. Previously there were some retail copyObject calls inside adjust_plan_varnos, but it seems a lot safer to just dup the whole tree first. Also, set_inner_join_references was trying to avoid work by not recursing if a BitmapHeapScan's bitmapqualorig contained no outer references; which was OK at the time the code was written, I think, but now that create_bitmap_scan_plan removes duplicate clauses from bitmapqualorig it is possible for that field to be NULL while outer references still remain in the qpqual and/or contained indexscan nodes. For safety, always recurse even if the BitmapHeapScan looks to be outer reference free. Per reports from Michael Fuhr and Oleg Bartunov. |
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config | ||
contrib | ||
doc | ||
src | ||
aclocal.m4 | ||
configure | ||
configure.in | ||
COPYRIGHT | ||
GNUmakefile.in | ||
Makefile | ||
README | ||
README.CVS |
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. The JDBC, ODBC, C++, Python, and Tcl interfaces have been moved to the PostgreSQL Projects Web Site at http://gborg.postgresql.org for separate maintenance. A Perl DBI/DBD driver is available from CPAN. 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. Changes between all PostgreSQL releases are recorded in the file HISTORY. 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 ftp://ftp.postgresql.org/pub/. For more information look at our web site located at http://www.postgresql.org/.