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@ -1,4 +1,4 @@ |
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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.60 2001/06/13 22:51:02 momjian Exp $ --> |
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<!-- $Header: /cvsroot/pgsql/doc/src/sgml/func.sgml,v 1.61 2001/06/15 21:03:07 tgl Exp $ --> |
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<chapter id="functions"> |
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<title>Functions and Operators</title> |
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@ -3570,7 +3570,7 @@ SELECT NULLIF(value, '(none)') ... |
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<title>Miscellaneous Functions</> |
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<table> |
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<title>Miscellaneous Functions</> |
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<title>Session Information Functions</> |
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<tgroup cols="3"> |
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<thead> |
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<row><entry>Name</> <entry>Return Type</> <entry>Description</></row> |
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@ -3624,6 +3624,52 @@ SELECT NULLIF(value, '(none)') ... |
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of <function>current_user</>. |
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</para> |
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</note> |
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<table> |
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<title>Access Privilege Inquiry Functions</> |
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<tgroup cols="3"> |
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<thead> |
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<row><entry>Name</> <entry>Return Type</> <entry>Description</></row> |
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</thead> |
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<tbody> |
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<row> |
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<entry>has_table_privilege(<parameter>user</parameter>, |
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<parameter>table</parameter>, |
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<parameter>access</parameter>) |
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</entry> |
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<entry>boolean</> |
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<entry>does user have access to table</> |
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</row> |
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<row> |
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<entry>has_table_privilege(<parameter>table</parameter>, |
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<parameter>access</parameter>) |
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</entry> |
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<entry>boolean</> |
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<entry>does current user have access to table</> |
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</row> |
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</tbody> |
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</tgroup> |
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</table> |
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<indexterm zone="functions-misc"> |
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<primary>has_table_privilege</primary> |
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</indexterm> |
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<para> |
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<function>has_table_privilege</> determines whether a user |
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can access a table in a particular way. The user can be |
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specified by name or by usesysid, or if the argument is omitted |
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<function>current_user</> is assumed. The table can be specified |
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by name or by OID. (Thus, there are actually six variants of |
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<function>has_table_privilege</>, which can be distinguished by |
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the number and types of their arguments.) The desired access type |
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is specified by a text string, which must evaluate to one of the |
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values <literal>SELECT</>, <literal>INSERT</>, <literal>UPDATE</>, |
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<literal>DELETE</>, <literal>RULE</>, <literal>REFERENCES</>, or |
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<literal>TRIGGER</>. (Case of the string is not significant, however.) |
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</para> |
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</sect1> |
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