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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 21:23:01 +01:00
parent aada0a7648
commit ee68541ce6
1 changed files with 3 additions and 1 deletions
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4
doc/src/sgml/func.sgml
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@ -17366,7 +17366,9 @@ SELECT currval(pg_get_serial_sequence('sometable', 'id'));
</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>