[Plugin: Content Aware Sidebars] WordPress database error

I’m getting a wordpress database error:

WordPress database error The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay for query

There is a lot more code, shown below, but it all references content aware sidebars. My site is hosted and I cannot adjust the MAX_JOIN_SIZE.

Is there any way to reduce the demand on the database – reduce the rows?

Full error message:

WordPress database error The SELECT would examine more than MAX_JOIN_SIZE rows; check your WHERE and use SET SQL_BIG_SELECTS=1 or SET MAX_JOIN_SIZE=# if the SELECT is okay for query
SELECT
posts.ID,
handle.meta_value handle,
host.meta_value host,
merge_pos.meta_value merge_pos
FROM wp_posts posts
LEFT JOIN wp_postmeta handle
ON handle.post_id = posts.ID
AND handle.meta_key = ‘_cas_handle’
LEFT JOIN wp_postmeta host
ON host.post_id = posts.ID
AND host.meta_key = ‘_cas_host’
LEFT JOIN wp_postmeta merge_pos
ON merge_pos.post_id = posts.ID
AND merge_pos.meta_key = ‘_cas_merge-pos’
LEFT JOIN wp_postmeta exposure
ON exposure.post_id = posts.ID
AND exposure.meta_key = ‘_cas_exposure’
LEFT JOIN wp_term_relationships term ON term.object_id = posts.ID LEFT JOIN wp_term_taxonomy taxonomy ON taxonomy.term_taxonomy_id = term.term_taxonomy_id LEFT JOIN wp_terms terms ON terms.term_id = taxonomy.term_id LEFT JOIN wp_postmeta post_tax ON post_tax.post_id = posts.ID AND post_tax.meta_key = ‘_cas_taxonomies’LEFT JOIN wp_postmeta post_types ON post_types.post_id = posts.ID AND post_types.meta_key = ‘_cas_post_types’ LEFT JOIN wp_postmeta authors ON authors.post_id = posts.ID AND authors.meta_key = ‘_cas_authors’
WHERE
posts.post_type = ‘sidebar’ AND
(post_tax.meta_value LIKE ‘%category%’ OR terms.slug IN(‘events’,’education’,’volunteers’) ) OR ((post_types.meta_value IS NULL OR (post_types.meta_value LIKE ‘%s:4:”post”;%’ OR post_types.meta_value LIKE ‘%s:4:”2975″;%’)) AND (authors.meta_value IS NULL OR (authors.meta_value LIKE ‘%authors%’ OR authors.meta_value LIKE ‘%s:1:”1″;%’))AND (post_types.meta_value IS NOT NULL OR authors.meta_value IS NOT NULL)) AND exposure.meta_value <= ‘1’ AND posts.post_status = ‘publish’
GROUP BY posts.ID
ORDER BY posts.menu_order ASC, handle.meta_value DESC, posts.post_date DESC
made by require, wp, WP->main, do_action_ref_array, call_user_func_array, ContentAwareSidebars->replace_sidebar, ContentAwareSidebars->get_sidebars

http://wordpress.org/extend/plugins/content-aware-sidebars/