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Add rule_number to pg_hba_file_rules and map_number to pg_ident_file_mappings

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These numbers are strictly-monotone identifiers assigned to each rule
of pg_hba_file_rules and each map of pg_ident_file_mappings when loading
the HBA and ident configuration files, indicating the order in which
they are checked at authentication time, until a match is found.

With only one file loaded currently, this is equivalent to the line
numbers assigned to the entries loaded if one wants to know their order,
but this becomes mandatory once the inclusion of external files is
added to the HBA and ident files to be able to know in which order the
rules and/or maps are applied at authentication.  Note that NULL is used
when a HBA or ident entry cannot be parsed or validated, aka when an
error exists, contrary to the line number.

Bump catalog version.

Author: Julien Rouhaud
Discussion: https://postgr.es/m/20220223045959.35ipdsvbxcstrhya@jrouhaud
This commit is contained in:
Michael Paquier
2022-10-26 15:22:15 +09:00
parent 37d264478a
commit c591300a8f
5 changed files with 74 additions and 21 deletions
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21
doc/src/sgml/system-views.sgml
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@ -991,6 +991,17 @@
</thead>
<tbody>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>rule_number</structfield> <type>int4</type>
</para>
<para>
Number of this rule, if valid, otherwise <literal>NULL</literal>.
This indicates the order in which each rule is considered
until a match is found during authentication.
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>line_number</structfield> <type>int4</type>
@ -1131,6 +1142,16 @@
</thead>
<tbody>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>map_number</structfield> <type>int4</type>
</para>
<para>
Number of this map, in priority order, if valid, otherwise
<literal>NULL</literal>
</para></entry>
</row>
<row>
<entry role="catalog_table_entry"><para role="column_definition">
<structfield>line_number</structfield> <type>int4</type>