You can check the statistics Information with the session command of the CSQL Interpreter.
csql> ;info stats <table_name>
The following example shows how to display the statistics Information of the t1 table in the CSQL Interpreter.
CREATE TABLE t1 (code INT);
INSERT INTO t1 VALUES(1),(2),(3),(4),(5);
CREATE INDEX ON t1(code);
UPDATE STATISTICS ON t1;
;info stats t1
CLASS STATISTICS
****************
Class name: t1 Timestamp: Mon Mar 14 16:26:40 2011
Total pages in class heap: 1
Total objects: 5
Number of attributes: 1
Atrribute: code
id: 0
Type: DB_TYPE_INTEGER
Mininum value: 1
Maxinum value: 5
B+tree statistics:
BTID: { 0 , 1049 }
Cardinality: 5 (5) , Total pages: 2 , Leaf pages: 1 , Height: 2