CreateQuery t0 (children 3)
 Identifier t0
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration c0 (children 1)
    DataType Map (children 1)
     ExpressionList (children 2)
      DataType Int
      DataType Int
   ColumnDeclaration c1 (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType BFloat16
 Storage definition (children 3)
  Function MergeTree (children 1)
   ExpressionList
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier c1
    Identifier c0
  Set
