Github user lisakowen commented on a diff in the pull request:
https://github.com/apache/incubator-hawq-docs/pull/39#discussion_r85407620
--- Diff: pxf/HivePXF.html.md.erb ---
@@ -339,21 +601,21 @@ postgres=# CREATE EXTERNAL TABLE pxf_sales_part(
delivery_state TEXT,
delivery_city TEXT
)
-LOCATION ('pxf://namenode_host:51200/sales_part?Profile=Hive')
+LOCATION ('pxf://namenode:51200/sales_part?Profile=Hive')
FORMAT 'custom' (FORMATTER='pxfwritable_import');
postgres=# SELECT * FROM pxf_sales_part;
```
-### <a id="example3"></a>Example
+### <a id="example3"></a>Query Without Pushdown
In the following example, the HAWQ query filters the `delivery_city`
partition `Sacramento`. The filter on `item_name` is not pushed down, since
it is not a partition column. It is performed on the HAWQ side after all the
data on `Sacramento` is transferred for processing.
``` sql
-postgres=# SELECT * FROM pxf_sales_part WHERE delivery_city = 'Sacramento'
AND item_name = 'shirt';
+postgres=# SELECT * FROM pxf_sales_part WHERE delivery_city = 'Sacramento'
AND item_name = 'cube';
```
-### <a id="example4"></a>Example
+### <a id="example4"></a>Query With Pushdown
--- End diff --
yes, this is good info to share with the user! i checked out the code, and
it looks like this GUC is on by default. i will add some text to that effect
in the appropriate section.
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