[TESTS] SQL with black list

sql/cooc_blacklist_sum.sql

+SELECT 
+177 as node_id, x.ngram_id as ngramX_id, y.ngram_id as ngramY_id, COUNT(*) AS score
+
+FROM
+node_node_ngram AS x
+
+INNER JOIN 
+node_node_ngram AS y 
+
+ON x.node_id = y.node_id
+
+
+WHERE
+x.id NOT IN (SELECT id FROM node_node_ngram WHERE node_id = 174 )
+AND
+y.id NOT IN (SELECT id from node_node_ngram WHERE node_id = 174 )
+
+AND
+x.ngram_id <> y.ngram_id
+
+GROUP BY
+x.ngram_id, y.ngram_id
+
+LIMIT 10