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Update obsolete text in fdwhandler.sgml.

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Etsuro Fujita, with some wording adjustment by me.
This commit is contained in:
Tom Lane 2012-10-10 13:54:43 -04:00
parent c33d6ef57d
commit 812d6db943
1 changed files with 4 additions and 3 deletions
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doc/src/sgml/fdwhandler.sgml
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@ -537,9 +537,10 @@ GetForeignServerByName(const char *name, bool missing_ok);
<replaceable>local_variable</>. Such clauses will not be found in
<literal>baserel-&gt;baserestrictinfo</> but must be sought in the
relation's join lists. A path using such a clause is called a
<quote>parameterized path</>. It must show the other relation(s) as
<literal>required_outer</> and list the specific join clause(s) in
<literal>param_clauses</>. In <function>GetForeignPlan</>, the
<quote>parameterized path</>. It must identify the other relations
used in the selected join clause(s) with a suitable value of
<literal>param_info</>; use <function>get_baserel_parampathinfo</>
to compute that value. In <function>GetForeignPlan</>, the
<replaceable>local_variable</> portion of the join clause would be added
to <structfield>fdw_exprs</>, and then at run time the case works the
same as for an ordinary restriction clause.