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Commitf9fd176

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Add pg_has_role() family of privilege inquiry functions modeled after the
existing ones for object privileges. Update the information_schema forroles --- pg_has_role() makes this a whole lot easier, removing the needfor most of the explicit joins with pg_user. The views should be a tadfaster now, too. Stephen Frost and Tom Lane.
1 parente5d6b91 commitf9fd176

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6 files changed

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-132
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6 files changed

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‎doc/src/sgml/func.sgml‎

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<!--
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.270 2005/07/25 22:12:30 tgl Exp $
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$PostgreSQL: pgsql/doc/src/sgml/func.sgml,v 1.271 2005/07/26 00:04:17 tgl Exp $
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PostgreSQL documentation
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-->
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@@ -8427,6 +8427,21 @@ SET search_path TO <replaceable>schema</> <optional>, <replaceable>schema</>, ..
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<entry><type>boolean</type></entry>
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<entry>does current user have privilege for language</entry>
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</row>
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<row>
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<entry><literal><function>pg_has_role</function>(<parameter>user</parameter>,
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<parameter>role</parameter>,
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<parameter>privilege</parameter>)</literal>
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</entry>
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<entry><type>boolean</type></entry>
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<entry>does user have privilege for role</entry>
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</row>
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<row>
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<entry><literal><function>pg_has_role</function>(<parameter>role</parameter>,
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<parameter>privilege</parameter>)</literal>
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</entry>
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<entry><type>boolean</type></entry>
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<entry>does current user have privilege for role</entry>
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</row>
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<row>
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<entry><literal><function>has_schema_privilege</function>(<parameter>user</parameter>,
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<parameter>schema</parameter>,
@@ -8473,6 +8488,9 @@ SET search_path TO <replaceable>schema</> <optional>, <replaceable>schema</>, ..
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<indexterm zone="functions-info">
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<primary>has_language_privilege</primary>
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</indexterm>
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<indexterm zone="functions-info">
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<primary>pg_has_role</primary>
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</indexterm>
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<indexterm zone="functions-info">
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<primary>has_schema_privilege</primary>
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</indexterm>
@@ -8536,6 +8554,14 @@ SELECT has_function_privilege('joeuser', 'myfunc(int, text)', 'execute');
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<literal>USAGE</literal>.
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</para>
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<para>
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<function>pg_has_role</function> checks whether a user
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can access a role in a particular way. The possibilities for its
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arguments are analogous to <function>has_table_privilege</function>.
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The desired access privilege type must evaluate to
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<literal>MEMBER</literal>.
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</para>
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<para>
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<function>has_schema_privilege</function> checks whether a user
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can access a schema in a particular way. The possibilities for its

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