f26ab219e2
The SIMD path for these commands reads ahead into the input buffer
via CopyLoadInputBuf(), which reports encoding and conversion
errors. The problem is that the errant data might lie beyond the
end-of-copy marker, which we aren't copying and thus needn't error
for. To fix, add a "speculative" parameter to CopyLoadInputBuf()
that defers these errors, and use it in the SIMD path. The errors
are instead reported only if we actually reach the errant data.
Testing indicates this does not meaningfully impact performance.
Oversight in commit e0a3a3fd53.
Reviewed-by: Greg Burd <greg@burd.me>
Reviewed-by: Nazir Bilal Yavuz <byavuz81@gmail.com>
Discussion: https://postgr.es/m/apWOr1kgVSqweBnU%40nathan
Backpatch-through: 19
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/19/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/19/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/.