I'm getting duplicate nodes in a a view I've created in Drupal. It appears the issue is related to the way the join is done in views for the node_access table.
Using devel, I see the following query:
SELECT node.nid AS nid,
node.language AS node_language,
node_data_field_weekend.field_weekend_value AS node_data_field_weekend_field_weekend_value,
node_data_field_weekend.field_weekend_value2 AS node_data_field_weekend_field_weekend_value2,
node.type AS node_type,
node.vid AS node_vid,
node_data_field_weekend.field_weekend_loc_nid AS node_data_field_weekend_field_weekend_loc_nid
FROM node node
LEFT JOIN content_type_wwme_weekends node_data_field_weekend ON node.vid = node_data_field_weekend.vid
INNER JOIN node_access na ON na.nid = node.nid
WHERE (na.grant_view >= 1 AND
(
(na.gid = 0 AND na.realm = 'all') OR
(na.gid = 0 AND na.realm = 'domain_site') OR
(na.gid = 0 AND na.realm = 'domain_id'))) AND
(
(
(node.type IN ('wwme_weekends')) AND
(node.status <> 0 OR
(node.uid = 0 AND 0 <> 0) OR 0 = 1)) AND
(DATE_FORMAT(STR_TO_DATE(node_data_field_weekend.field_weekend_value, '%Y-%m-%dT%T'), '%Y-%m-%d') > '2010-01-10') )
ORDER BY node_data_field_weekend_field_weekend_value ASC LIMIT 0, 5
The join to the node_access table is causing the other records to duplicate because there are multiple node_access records to a node, one with the realm of domain_site and one record with the realm of domain_id.
The data sort of looks like this (with some columns cut for brevity):
nid gid realm grant_view grant_update grant_delete
73 0 domain_id 1 1 1
73 0 domain_site 1 0 0
988 0 domain_id 1 1 1
988 0 domain_site 1 0 0
90 0 domain_id 1 1 1
What purpose does the realm fit? How are these records populated, and most importantly, how can I fix this? Is the SQL right?