CreateQuery visits_null (children 3)
 Identifier visits_null
 Columns definition (children 1)
  ExpressionList (children 4)
   ColumnDeclaration CounterID (children 1)
    DataType UInt32
   ColumnDeclaration StartDate (children 1)
    DataType Date
   ColumnDeclaration Sign (children 1)
    DataType Int8
   ColumnDeclaration UserID (children 1)
    DataType UInt64
 Storage definition (children 1)
  Function Null