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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 21:23:48 +01:00
parent 91ff29f036
commit 93f6c6328d
1 changed files with 3 additions and 1 deletions
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doc/src/sgml/func.sgml
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@ -17519,7 +17519,9 @@ SELECT currval(pg_get_serial_sequence('sometable', 'id'));
</row> </row>
<row> <row>
<entry><literal>backward_scan</literal></entry> <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> </entry>
</row> </row>
</tbody> </tbody>