CreateQuery t (children 3)
 Identifier t
 Columns definition (children 2)
  ExpressionList (children 3)
   ColumnDeclaration key1 (children 1)
    DataType UInt64
   ColumnDeclaration value1 (children 1)
    DataType String
   ColumnDeclaration value2 (children 1)
    DataType String
  ExpressionList (children 1)
   Index (children 2)
    Identifier value1
    Function set (children 1)
     ExpressionList (children 1)
      Literal UInt64_10
 Storage definition (children 3)
  Function MergeTree
  Identifier key1
  Set
