Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_58851 ( "Drug" text, "Mean" real, "Pleasure" real, "Psychological dependence" real, "Physical dependence" real )

### Question ###
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?

### Accurate SQL ###

SELECT MAX("Psychological dependence") FROM table_58851 WHERE "Pleasure" < '2.3' AND "Drug" = 'cannabis' AND "Physical dependence" < '0.8'