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points where we step right or left to the next page. This should ensure reasonable response time to a query cancel request during an unsuccessful index scan, as seen in recent gripe from Marc Cousin. It's a bit trickier than it might seem at first glance, because CHECK_FOR_INTERRUPTS() is a no-op if executed while holding a buffer lock. So we have to do it just at the point where we've dropped one page lock and not yet acquired the next. Remove CHECK_FOR_INTERRUPTS calls at the top level of btgetbitmap and hashgetbitmap, since they're pointless given the added checks. I think that GIST is okay already --- at least, there's a CHECK_FOR_INTERRUPTS at a plausible-looking place in gistnext(). I don't claim to know GIN well enough to try to poke it for this, if indeed it has a problem at all. This is a pre-existing issue, but in view of the lack of prior complaints I'm not going to risk back-patching. |
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| 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. 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. 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 http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.