Description:
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When using a prepared SELECT query of the form "SELECT table_a.column_id, table_a.column_some_string FROM table_a LEFT OUTER JOIN table_b ON (table_a.column_id = table_b.foreign_key_id)" - which executes successfully - there is a problem fetching the results.

Using fetchAll( PDO::FETCH_ASSOC ) returns the rows with the strings intact but the column_id (integer) as NULL.  PDO::FETCH_BOTH shows that numerically indexed rows have the column_id as expected but the error still present when indexed by the column name.

The same query performed via pgadmin3 returns the expected results, and is the same as PDO::FETCH_NUM so there is definitely a problem with PDO::FETCH_ASSOC.

Other SELECT queries work as expected, it seems to be related to the "LEFT OUTER JOIN".

It can be coded around but is nonetheless a curious error.

Expected result:
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For the PDO::FETCH_ASSOC to return the same data as PDO::FETCH_NUM.