CreateQuery largestTriangleThreeBucketsTestFloat64Float64 (children 3)
 Identifier largestTriangleThreeBucketsTestFloat64Float64
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration x (children 1)
    DataType Float64
   ColumnDeclaration y (children 1)
    DataType Float64
 Storage definition (children 2)
  Function MergeTree
  Function tuple (children 1)
   ExpressionList (children 2)
    Identifier y
    Identifier x
