3e49556302
When the incremental JSON parser splits a numeric token across chunk boundaries, it accumulates continuation characters into the partial token buffer. The accumulator's switch statement unconditionally accepted '+', '-', '.', 'e', and 'E' as valid numeric continuations regardless of position, which violated JSON number grammar (-? int [frac] [exp]). For example, input "4-" fed in single-byte chunks would accumulate the '-' into the numeric token, producing an invalid token that later triggered an assertion failure during re-lexing. Fix by tracking parser state (seen_dot, seen_exp, prev character) across the existing partial token and incoming bytes, so that each character class is accepted only in its grammatically valid position. Backpatch-through: 17 |
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| .abi-compliance-history | ||
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| .mailmap | ||
| aclocal.m4 | ||
| configure | ||
| configure.ac | ||
| COPYRIGHT | ||
| GNUmakefile.in | ||
| HISTORY | ||
| Makefile | ||
| meson.build | ||
| meson_options.txt | ||
| README.md | ||
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/18/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/18/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/.