CreateQuery mt_compact (children 3)
 Identifier mt_compact
 Columns definition (children 1)
  ExpressionList (children 5)
   ColumnDeclaration a (children 1)
    DataType UInt64
   ColumnDeclaration b (children 2)
    DataType UInt64
    Function multiply (children 1)
     ExpressionList (children 2)
      Identifier a
      Identifier a
   ColumnDeclaration s (children 1)
    DataType String
   ColumnDeclaration n (children 1)
    DataType Nested (children 1)
     ExpressionList (children 2)
      NameTypePair x (children 1)
       DataType UInt32
      NameTypePair y (children 1)
       DataType String
   ColumnDeclaration lc (children 1)
    DataType LowCardinality (children 1)
     ExpressionList (children 1)
      DataType String
 Storage definition (children 4)
  Function MergeTree
  Function modulo (children 1)
   ExpressionList (children 2)
    Identifier a
    Literal UInt64_10
  Identifier a
  Set