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d8cc1616b5
Avoid allocating never-used entries in stmtCacheEntries[], other than the intentionally-unused zero'th entry. Tie the array size directly to the bucket count and size, rather than having undocumented dependencies between three magic constants. Fix the hash calculation to be platform-independent --- notably, it was sensitive to the signed'ness of "char" before, not to mention having an unnecessary hard-wired dependency on the existence and size of type "long long". (The lack of complaints says it's been a long time since anybody tried to build PG on a compiler without "long long", and certainly with the requirement for C99 this isn't a live bug anymore. But it's still not per project coding style.) Fix ecpg_auto_prepare's new-cache-entry path so that it increments the exec count for the new cache entry not the dummy zero'th entry. The last of those is an actual bug, though one of little consequence; the rest is mostly future-proofing and neatnik-ism. Doesn't seem necessary to back-patch. |
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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: 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/.