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-rw-r--r--doc/src/sgml/spi.sgml13
1 files changed, 13 insertions, 0 deletions
diff --git a/doc/src/sgml/spi.sgml b/doc/src/sgml/spi.sgml
index 55ca90ad58f..493c74b4e5d 100644
--- a/doc/src/sgml/spi.sgml
+++ b/doc/src/sgml/spi.sgml
@@ -2092,6 +2092,19 @@ Portal SPI_cursor_find(const char * <parameter>name</parameter>)
<symbol>NULL</symbol> if none was found
</para>
</refsect1>
+
+ <refsect1>
+ <title>Notes</title>
+
+ <para>
+ Beware that this function can return a <type>Portal</type> object
+ that does not have cursor-like properties; for example it might not
+ return tuples. If you simply pass the <type>Portal</type> pointer
+ to other SPI functions, they can defend themselves against such
+ cases, but caution is appropriate when directly inspecting
+ the <type>Portal</type>.
+ </para>
+ </refsect1>
</refentry>
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