8e3c58e6e4
Letting the caller provide a StringInfo to read into is helpful when the caller needs to merge lines or otherwise modify the data after it's been read. Notably, now the code added by commit 8f8154a50 can use pg_get_line_append() instead of having its own copy of that logic. A follow-on commit will also make use of this. Also, since StringInfo buffers are a minimum of 1KB long, blindly using pg_get_line() in a loop can eat a lot more memory than one would expect. I discovered for instance that commit e0f05cd5b caused initdb to consume circa 10MB to read postgres.bki, even though that's under 1MB worth of data. A less memory-hungry alternative is to re-use the same StringInfo for all lines and pg_strdup the results. Discussion: https://postgr.es/m/1315832.1599345736@sss.pgh.pa.us
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/.