CreateQuery table_00609 (children 3)
 Identifier table_00609
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration key (children 1)
    DataType UInt64
   ColumnDeclaration val (children 1)
    DataType UInt64
 Storage definition (children 3)
  Function MergeTree
  Identifier key
  Set