8ec04c8577
AlterDomainStmt.subtype used characters for its subtypes of commands, SET|DROP DEFAULT|NOT NULL and ADD|DROP|VALIDATE CONSTRAINT, which were hardcoded in a couple of places of the code. The code is improved by using an enum instead, with the same character values as the original code. Note that the field was documented in parsenodes.h and that it forgot to mention 'V' (VALIDATE CONSTRAINT). Author: Quan Zongliang <quanzongliang@yeah.net> Reviewed-by: Peter Eisentraut <peter@eisentraut.org> Reviewed-by: wenhui qiu <qiuwenhuifx@gmail.com> Reviewed-by: Tender Wang <tndrwang@gmail.com> Discussion: https://postgr.es/m/41ff310b-16bd-44b9-a3ef-97e20f14b709@yeah.net
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/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/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/.