Error while creating table

Hi all ,

Following code written to define table .....

table.schemaName = "MYSCHEMA";
table.tableType = COLUMSTORE;
table.description = "table Description";
table.columns= [
{name ="Col1"sqlType =NVARCHAR;nullable = false;length =15 comment = "OrderId";},
{name ="Col2"sqlType =NVARCHAR;nullable = false;length =20 comment = "Order Item";},
{name ="Col3"sqlType =DECIMAL;nullable = false;precision =15;scale =3; comment = "Quantity";},
{name ="Col4"sqlType =NVARCHAR;nullable = false;length = 3; comment = "Quantity unit";}];
table.primarykey.pkcolummns=["Col1","Col2"];

Giving me following error

ERROR workshop/sessiona/00/data/MYTABLE.hdbtable
Repository: CheckObjects failed for at least one object; Parse error for table definition: Syntax error in line 0 and column 0 : unknown name

Please let me know where is bug in my code.

hari