Set safe schema on some functions

scripts-available/CDB_AnalysisCheck.sql

@@ -6,8 +6,11 @@ $$
 BEGIN
   RETURN @extschema@.CDB_Conf_GetConf('analysis_quota_factor')::text::float8;
 END;
-$$
-LANGUAGE 'plpgsql' STABLE PARALLEL SAFE SECURITY DEFINER;
+$$  LANGUAGE 'plpgsql'
+    STABLE
+    PARALLEL SAFE
+    SECURITY DEFINER
+    SET search_path = pg_temp;
 
 
 -- Get the factor (fraction of the quota) for Camshaft cached analysis tables

scripts-available/CDB_EstimateRowCount.sql

@@ -12,7 +12,12 @@ BEGIN
     EXECUTE Format('ANALYZE %s;', reloid);
   END IF;
 END
-$$ LANGUAGE 'plpgsql' VOLATILE STRICT PARALLEL UNSAFE SECURITY DEFINER;
+$$  LANGUAGE 'plpgsql'
+    VOLATILE
+    STRICT
+    PARALLEL UNSAFE
+    SECURITY DEFINER
+    SET search_path = pg_temp;
 
 -- Return a row count estimate of the result of a query using statistics
 CREATE OR REPLACE FUNCTION @extschema@.CDB_EstimateRowCount(query text)

scripts-available/CDB_Overviews.sql

@@ -318,7 +318,7 @@ $$ LANGUAGE PLPGSQL VOLATILE PARALLEL UNSAFE;
 -- This function is declared SECURITY DEFINER so it executes with the privileges
 -- of the function creator to have a chance to alter the privileges of the
 -- overview table to match those of the dataset. It will only perform any change
--- if the overview table belgons to the same scheme as the dataset and it
+-- if the overview table belongs to the same scheme as the dataset and it
 -- matches the scheme naming for overview tables.
 CREATE OR REPLACE FUNCTION @extschema@._CDB_Register_Overview(dataset REGCLASS, overview_table REGCLASS, overview_z INTEGER)
 RETURNS VOID
@@ -362,7 +362,11 @@ AS $$
       -- it should be done here (CDB_Overviews would consume such metadata)
     END IF;
   END
-$$ LANGUAGE PLPGSQL VOLATILE PARALLEL UNSAFE SECURITY DEFINER;
+$$  LANGUAGE PLPGSQL
+    VOLATILE
+    PARALLEL UNSAFE
+    SECURITY DEFINER
+    SET search_path = pg_temp;
 
 -- Dataset attributes (column names other than the
 -- CartoDB primary key and geometry columns) which should be aggregated