CREATE TABLE table_58851 ("Drug" TEXT, "Mean" FLOAT, "Pleasure" FLOAT, "Psychological dependence" FLOAT, "Physical dependence" FLOAT)

What is the highest Psychological Dependence, when Pleasure is less than 2.3, when Drug is 'Cannabis', and when Physical Dependence is less than 0.8?
SELECT MAX("Psychological dependence") FROM table_58851 WHERE "Pleasure" < '2.3' AND "Drug" = 'cannabis' AND "Physical dependence" < '0.8'
SELECT MAX("Psychological dependence") FROM "table_58851" WHERE "Drug" = 'cannabis' AND "Physical dependence" < '0.8' AND "Pleasure" < '2.3'