pg_builder 2.1.0 released with support for Postgres 15 syntax

I'm pleased to announce the release of [pg_builder PHP package](https://github.com/sad-spirit/pg-builder) updated for Postgres 15 syntax.

# pg_builder 2.1.0

pg_builder is a query builder for Postgres backed by a partial PHP reimplementation of PostgreSQL's own SQL parser. It supports almost all syntax available in Postgres 15 for `SELECT` (and `VALUES`), `INSERT`, `UPDATE`, `DELETE`, and `MERGE` queries.

With pg_builder it is possible to start with a manually written query, parse it into an Abstract Syntax Tree, add query parts (either as `Node` objects or as strings) to this tree or remove them, and finally convert the tree back to an SQL string.

Main changes in the new release

* Allow parsing and building `MERGE` statements.
* Reject numeric literals and positional parameters with trailing non-digits: previously `SELECT 123abc` was parsed as `SELECT 123 AS abc`, now it will throw an exception.

[Full release notes](https://github.com/sad-spirit/pg-builder/blob/v2.1.0/Changelog.md)

The package can be [downloaded from Github](https://github.com/sad-spirit/pg-builder/releases/tag/v2.1.0) or installed with Composer:

`$ composer require sad_spirit/pg_builder`

pg_builder can be used on its own, using it together with [pg_wrapper](https://github.com/sad-spirit/pg-wrapper) allows to run the built queries with transparent conversion of query parameters to Postgres types.