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If RAW_EXPRESSION_COVERAGE_TEST is defined, do a no-op tree walk over every basic DML statement submitted to parse analysis. If we'd had this in place earlier, bug #14153 would have been caught by buildfarm testing. The difficulty is that raw_expression_tree_walker() is only used in limited cases involving CTEs (particularly recursive ones), so it's very easy for an oversight in it to not be noticed during testing of a seemingly-unrelated feature. The type of error we can expect to catch with this is complete omission of a node type from raw_expression_tree_walker(), and perhaps also recursion into a field that doesn't contain a node tree, though that would be an unlikely mistake. It won't catch failure to add new fields that need to be recursed into, unfortunately. I'll go enable this on one or two of my own buildfarm animals once bug #14153 is dealt with. Discussion: <27861.1464040417@sss.pgh.pa.us> |
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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/.