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Improve documentation about usage of FDW validator functions.

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SGML documentation, as well as code comments, failed to note that an FDW's
validator will be applied to foreign-table options for foreign tables using
the FDW.

Etsuro Fujita
This commit is contained in:
Tom Lane
2013-10-28 10:28:35 -04:00
parent 438df52df9
commit c2b51cf190
3 changed files with 19 additions and 13 deletions
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8
doc/src/sgml/ref/create_foreign_data_wrapper.sgml
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@ -80,11 +80,11 @@ CREATE FOREIGN DATA WRAPPER <replaceable class="parameter">name</replaceable>
<varlistentry>
<term><literal>VALIDATOR <replaceable class="parameter">validator_function</replaceable></literal></term>
<listitem>
<para><replaceable class="parameter">validator_function</replaceable> is the
name of a previously registered function that will be called to
<para><replaceable class="parameter">validator_function</replaceable>
is the name of a previously registered function that will be called to
check the generic options given to the foreign-data wrapper, as
well as options for foreign servers and user mappings using the
foreign-data wrapper. If no validator function or <literal>NO
well as options for foreign servers, user mappings and foreign tables
using the foreign-data wrapper. If no validator function or <literal>NO
VALIDATOR</literal> is specified, then options will not be
checked at creation time. (Foreign-data wrappers will possibly
ignore or reject invalid option specifications at run time,