CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration col1 (children 1)
    DataType Int64
   ColumnDeclaration dt (children 1)
    DataType Date
 Storage definition (children 3)
  Function MergeTree
  Identifier dt
  Function tuple (children 1)
   ExpressionList
