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doc: Fix typos

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Author: Justin Pryzby <pryzby@telsasoft.com>
This commit is contained in:
Peter Eisentraut 2018-07-05 22:51:56 +02:00
parent aba2184bed
commit d5176fa1e3
1 changed files with 2 additions and 2 deletions
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doc/src/sgml/ddl.sgml
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@ -3431,7 +3431,7 @@ ALTER TABLE measurement ATTACH PARTITION measurement_y2008m02
define any check constraints on this table, unless you intend them
to be applied equally to all partitions. There is no point in
defining any indexes or unique constraints on it, either. For our
example, master table is the <structname>measurement</structname>
example, the master table is the <structname>measurement</structname>
table as originally defined.
</para>
</listitem>
@ -3943,7 +3943,7 @@ EXPLAIN SELECT count(*) FROM measurement WHERE logdate &gt;= DATE '2008-01-01';
Constraint exclusion works in a very similar way to partition
pruning, except that it uses each table's <literal>CHECK</literal>
constraints &mdash; which gives it its name &mdash; whereas partition
pruning uses the table's partition bounds, which exists only in the
pruning uses the table's partition bounds, which exist only in the
case of declarative partitioning. Another difference is that
constraint exclusion is only applied at plan time; there is no attempt
to remove partitions at execution time.