CreateQuery mv_dst (children 4)
 Identifier mv_dst
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration key (children 1)
    DataType Int64
   ColumnDeclaration value (children 1)
    DataType String
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Literal UInt64_0 (alias key)
     Identifier value (alias value)
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier dst
 ViewTargets (children 1)
  Storage definition (children 3)
   Function MergeTree
   Function tuple (children 1)
    ExpressionList
   Set
