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Add some weasel wording about threaded usage of PGresults.

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PGresults used to be read-only from the application's viewpoint, but now
that we've exposed various functions that allow modification of a PGresult,
that sweeping statement is no longer accurate.  Noted by Dmitriy Igrishin.
This commit is contained in:
Tom Lane
2011-12-02 11:33:53 -05:00
parent cfd8cf37d2
commit 1cd1a7c102
1 changed files with 6 additions and 2 deletions
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8
doc/src/sgml/libpq.sgml
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@@ -7161,8 +7161,12 @@ int PQisthreadsafe();
</para>
<para>
<structname>PGresult</> objects are read-only after creation, and so
can be passed around freely between threads.
<structname>PGresult</> objects are normally read-only after creation,
and so can be passed around freely between threads. However, if you use
any of the <structname>PGresult</>-modifying functions described in
<xref linkend="libpq-misc"> or <xref linkend="libpq-events">, it's up
to you to avoid concurrent operations on the same <structname>PGresult</>,
too.
</para>
<para>