ec8719ccbf
The hex_encode() and hex_decode() functions serve as the workhorses for hexadecimal data for bytea's text format conversion functions, and some workloads are sensitive to their performance. This commit adds new implementations that use routines from port/simd.h, which testing indicates are much faster for larger inputs. For small or invalid inputs, we fall back on the existing scalar versions. Since we are using port/simd.h, these optimizations apply to both x86-64 and AArch64. Author: Nathan Bossart <nathandbossart@gmail.com> Co-authored-by: Chiranmoy Bhattacharya <chiranmoy.bhattacharya@fujitsu.com> Co-authored-by: Susmitha Devanga <devanga.susmitha@fujitsu.com> Reviewed-by: John Naylor <johncnaylorls@gmail.com> Discussion: https://postgr.es/m/aLhVWTRy0QPbW2tl%40nathan |
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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.
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/.