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The NFC recomposition incorrectly included TBASE as a valid T syllable, which is incorrect based on the Unicode specification (TBASE is one below the start of the range, range beginning at U+11A8). This would cause the TBASE to be silently swallowed in the normalization, leading to an incorrect result. A couple of regression tests are added to check more patterns with Hangul recomposition and decomposition, on top of a test to check the problem with TBASE. Diego has submitted the code fix, and I have written the tests. Author: Diego Frias <mail@dzfrias.dev> Co-authored-by: Michael Paquier <michael@paquier.xyz> Discussion: https://postgr.es/m/B92ED640-7D4A-4505-B09F-3548F58CBB16@dzfrias.dev Backpatch-through: 14 |
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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/.