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1. Directly reading interp->result is deprecated in Tcl 8.0 and later; you're supposed to use Tcl_GetStringResult. This code finally broke with Tcl 8.5, because Tcl_GetVar can now have side-effects on interp->result even though it preserves the logical state of the result. (There's arguably a Tcl issue here, because Tcl_GetVar could invalidate the pointer result of a just-preceding Tcl_GetStringResult, but I doubt the Tcl guys will see it as a bug.) 2. We were being sloppy about the encoding of the result: some places would push database-encoding data into the Tcl result, which should not happen, and we were assuming that any error result coming back from Tcl was in the database encoding, which is not a good assumption. 3. There were a lot of calls of Tcl_SetResult that uselessly specified TCL_VOLATILE for constant strings. This is only a minor performance issue, but I fixed it in passing since I had to look at all the calls anyway. #2 is a live bug regardless of which Tcl version you are interested in, so back-patch even to branches that are unlikely to be used with Tcl 8.5. I went back as far as 8.0, which is as far as the patch applied easily; 7.4 was using a different error processing scheme that has got its own problems :-( |
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| configure | ||
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| COPYRIGHT | ||
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| README | ||
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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. 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/.