CreateQuery test_a (children 3)
 Identifier test_a
 Columns definition (children 1)
  ExpressionList (children 3)
   ColumnDeclaration id (children 1)
    DataType UInt32
   ColumnDeclaration company (children 1)
    DataType UInt32
   ColumnDeclaration total (children 1)
    DataType UInt64
 Storage definition (children 4)
  Function SummingMergeTree (children 1)
   ExpressionList
  Identifier company
  Identifier id
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier id
    Identifier company
