CreateQuery values_template_nullable (children 3)
 Identifier values_template_nullable
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration d (children 1)
    DataType Date
   ColumnDeclaration s (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType String
   ColumnDeclaration u (children 1)
    DataType Nullable (children 1)
     ExpressionList (children 1)
      DataType UInt8
   ColumnDeclaration a (children 1)
    DataType Array (children 1)
     ExpressionList (children 1)
      DataType Nullable (children 1)
       ExpressionList (children 1)
        DataType Float32
 Storage definition (children 1)
  Function Memory