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doc: fix description of backward_scan

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The description of the index property backward_scan was incorrect and
misleading; rectify.

Backpatch to 9.6 where the amutils functionality was introduced.
This commit is contained in:
Andrew Gierth 2018-05-17 21:19:57 +01:00
parent ace3c7cc05
commit 4a9b44d3c0
1 changed files with 3 additions and 1 deletions
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4
doc/src/sgml/func.sgml
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@ -16840,7 +16840,9 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
</row>
<row>
<entry><literal>backward_scan</literal></entry>
<entry>Can the index be scanned backwards?
<entry>Can the scan direction be changed in mid-scan (to
support <literal>FETCH BACKWARD</literal> on a cursor without
needing materialization)?
</entry>
</row>
</tbody>