Coverity complained about the integer handling issue; if we start with an arbitrary non-negative shift value, the loop may decrement it down to something less than zero before exiting. This commit adds an assertion to make sure the 'shift' is always 0 after the loop, and uses 0 as the shift to get the key chunk in the following operation. Introduced by ee1b30f12. Reported-by: Tom Lane as per coverity Reviewed-by: Tom Lane Discussion: https://postgr.es/m/2089517.1711299216%40sss.pgh.pa.us
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.