CreateQuery test_mv_00609 (children 3)
 Identifier test_mv_00609
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier a
     Function toDate (alias date) (children 1)
      ExpressionList (children 1)
       Literal \'2000-01-01\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier test_00609
 ViewTargets (children 1)
  Storage definition (children 1)
   Function MergeTree (children 1)
    ExpressionList (children 3)
     Identifier date
     Identifier a
     Literal UInt64_8192
