6d470211e5
The inh field of RangeTblEntry was doubly confusingly documented. Some parts of the code insisted that it was only valid for RTE_RELATION entries, other parts said the field was valid for all entries. Neither was quite correct. More correctly, the field is valid for RTE_RELATION entries but is also used in the planner for RTE_SUBQUERY entries. So it makes more sense to group it with other fields that are primarily for RTE_RELATION but borrowed by RTE_SUBQUERY. (The exact position was chosen so that it is next to relkind for better struct packing, and next to relid, since relid and inh are sort of the input fields and the others are filled in later.) Also add documentation for the planner's use at the struct definition. Discussion: https://www.postgresql.org/message-id/6c1fbccc-85c8-40d3-b08b-4f47f2093711@eisentraut.org
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/.