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Text search sometimes failed to find valid matches, for instance '!crew:A'::tsquery might fail to locate 'crew:1B'::tsvector during an index search. The root of the issue is that TS_execute's callback functions were not changed to use ternary (yes/no/maybe) reporting when we made the search logic itself do so. It's somewhat annoying to break that API, but on the other hand we now see that any code using plain boolean logic is almost certainly broken since the addition of phrase search. There seem to be very few outside callers of this code anyway, so we'll just break them intentionally to get them to adapt. This allows removal of tsginidx.c's private re-implementation of TS_execute, since that's now entirely duplicative. It's also no longer necessary to avoid use of CALC_NOT in tsgistidx.c, since the underlying callbacks can now do something reasonable. Back-patch into v13. We can't change this in stable branches, but it seems not quite too late to fix it in v13. Tom Lane and Pavel Borisov Discussion: https://postgr.es/m/CALT9ZEE-aLotzBg-pOp2GFTesGWVYzXA3=mZKzRDa_OKnLF7Mg@mail.gmail.com
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/.