366c366
< 		$join = " INNER JOIN $wpdb->term_relationships AS tr ON $wpdb->posts.ID = tr.object_id ";
---
> 		$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id ";
379c379
< 		$posts_in_ex_cats_sql = 'AND ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
---
> 		$posts_in_ex_cats_sql = 'AND p.ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
383,384c383,384
< 	$where = apply_filters( 'get_previous_post_where', "WHERE post_date < '$current_post_date' AND post_type = 'post' AND post_status = 'publish' $posts_in_ex_cats_sql", $in_same_cat, $excluded_categories );
< 	$sort  = apply_filters( 'get_previous_post_sort', 'ORDER BY post_date DESC LIMIT 1' );
---
> 	$where = apply_filters( 'get_previous_post_where', "WHERE p.post_date < '$current_post_date' AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql", $in_same_cat, $excluded_categories );
> 	$sort  = apply_filters( 'get_previous_post_sort', 'ORDER BY p.post_date DESC LIMIT 1' );
386c386
< 	return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join $where $sort");
---
> 	return @$wpdb->get_row("SELECT p.ID, p.post_title FROM $wpdb->posts AS p $join $where $sort");
399c399
< 		$join = " INNER JOIN $wpdb->term_relationships AS tr ON $wpdb->posts.ID = tr.object_id ";
---
> 		$join = " INNER JOIN $wpdb->term_relationships AS tr ON p.ID = tr.object_id ";
412c412
< 		$posts_in_ex_cats_sql = 'AND ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
---
> 		$posts_in_ex_cats_sql = 'AND p.ID NOT IN (' . implode($posts_in_ex_cats, ',') . ')';
416,417c416,417
< 	$where = apply_filters( 'get_next_post_where', "WHERE post_date > '$current_post_date' AND post_type = 'post' AND post_status = 'publish' $posts_in_ex_cats_sql AND ID != $post->ID", $in_same_cat, $excluded_categories );
< 	$sort  = apply_filters( 'get_next_post_sort', 'ORDER BY post_date ASC LIMIT 1' );
---
> 	$where = apply_filters( 'get_next_post_where', "WHERE p.post_date > '$current_post_date' AND p.post_type = 'post' AND p.post_status = 'publish' $posts_in_ex_cats_sql AND p.ID != $post->ID", $in_same_cat, $excluded_categories );
> 	$sort  = apply_filters( 'get_next_post_sort', 'ORDER BY p.post_date ASC LIMIT 1' );
419c419
< 	return @$wpdb->get_row("SELECT ID, post_title FROM $wpdb->posts $join $where $sort");
---
> 	return @$wpdb->get_row("SELECT p.ID, p.post_title FROM $wpdb->posts AS p $join $where $sort");