Explain EXPLAIN SYNTAX (children 1)
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Asterisk
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier t1
    Function or (children 1)
     ExpressionList (children 3)
      Function and (children 1)
       ExpressionList (children 2)
        Function equals (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 2)
            Identifier a
            Identifier b
          Literal Tuple_(UInt64_1, UInt64_2)
        Function equals (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 3)
            Identifier c
            Identifier d
            Identifier a
          Literal Tuple_(UInt64_3, UInt64_4, UInt64_5)
      Function equals (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 3)
          Identifier a
          Identifier b
          Literal UInt64_1000
        Function tuple (children 1)
         ExpressionList (children 3)
          Identifier c
          Literal UInt64_10
          Identifier d
      Function equals (children 1)
       ExpressionList (children 2)
        Function tuple (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 2)
            Identifier a
            Identifier b
          Literal UInt64_1000
        Function tuple (children 1)
         ExpressionList (children 2)
          Function tuple (children 1)
           ExpressionList (children 2)
            Identifier c
            Literal UInt64_10
          Identifier d
