CreateQuery partitions (children 3)
 Identifier partitions
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration EventDate (children 1)
    DataType Date
   ColumnDeclaration CounterID (children 1)
    DataType UInt32
 Storage definition (children 1)
  Function MergeTree (children 1)
   ExpressionList (children 3)
    Identifier EventDate
    Identifier CounterID
    Literal UInt64_8192