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Commit 4bbf6edfbd5d03743ff82dda2f00c738fb3208f5 added a test case, but it turns out that the test case doesn't reliably test for the bug, and in the context of the regression test suite did not because ANALYZE had not been run. Report and patch by Etsuro Fujita. I added a comment along lines previously suggested by Tom Lane. Discussion: http://postgr.es/m/5A6195D8.8060206@lab.ntt.co.jp
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/.
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