CreateQuery test (children 3)
 Identifier test
 Columns definition (children 2)
  ExpressionList (children 1)
   ColumnDeclaration a (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier a
    Function tokenbf_v1 (children 1)
     ExpressionList (children 3)
      Literal Float64_0.1
      Literal UInt64_2
      Literal UInt64_0
 Storage definition (children 2)
  Function MergeTree
  Identifier a
