SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function trimLeft (alias explain) (children 1)
     ExpressionList (children 1)
      Identifier explain
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 2)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function viewExplain (children 1)
              ExpressionList (children 3)
               Literal \'EXPLAIN\'
               Literal \'indexes = 1\'
               Subquery (children 1)
                SelectWithUnionQuery (children 1)
                 ExpressionList (children 1)
                  SelectQuery (children 4)
                   ExpressionList (children 1)
                    Identifier id
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier tab_f32
                   ExpressionList (children 1)
                    OrderByElement (children 1)
                     Function L2Distance (children 1)
                      ExpressionList (children 2)
                       Identifier vec
                       Function nonConstF32 (children 1)
                        ExpressionList (children 1)
                         Function rand (children 1)
                          ExpressionList
                   Literal UInt64_1
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%vector_similarity%\'
