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Doc: specify aclitem syntax more clearly. 

The previous wording here relied solely on an example to explain
aclitem output format.  Add an actual syntax synopsis and
explanation of the elements to make it clearer.

David Johnston and Tom Lane, per gripe from Eugen Konkov.

Discussion: https://postgr.es/m/170326116972.1876499.18357820037829248593@wrigleys.postgresql.org
This commit is contained in:
Tom Lane 2023-12-27 13:52:01 -05:00
parent 3f1fd41631
commit 6c361d323b
1 changed files with 10 additions and 3 deletions
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13
doc/src/sgml/ddl.sgml
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@ -2318,9 +2318,16 @@ REVOKE ALL ON accounts FROM PUBLIC;
<primary><type>aclitem</type></primary>
</indexterm>
The privileges that have been granted for a particular object are
displayed as a list of <type>aclitem</type> entries, where each
<type>aclitem</type> describes the permissions of one grantee that
have been granted by a particular grantor. For example,
displayed as a list of <type>aclitem</type> entries, each having the
format:
<synopsis>
<replaceable>grantee</replaceable><literal>=</literal><replaceable>privilege-abbreviation</replaceable><optional><literal>*</literal></optional>...<literal>/</literal><replaceable>grantor</replaceable>
</synopsis>
Each <type>aclitem</type> lists all the permissions of one grantee that
have been granted by a particular grantor. Specific privileges are
represented by one-letter abbreviations from
<xref linkend="privilege-abbrevs-table"/>, with <literal>*</literal>
appended if the privilege was granted with grant option. For example,
<literal>calvin=r*w/hobbes</literal> specifies that the role
<literal>calvin</literal> has the privilege
<literal>SELECT</literal> (<literal>r</literal>) with grant option