SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function trimLeft (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 6)
                   ExpressionList (children 1)
                    Identifier id
                   TablesInSelectQuery (children 1)
                    TablesInSelectQueryElement (children 1)
                     TableExpression (children 1)
                      TableIdentifier tab
                   Function greaterOrEquals (children 1)
                    ExpressionList (children 2)
                     Identifier attr2
                     Literal UInt64_1006
                   ExpressionList (children 1)
                    OrderByElement (children 1)
                     Function L2Distance (children 1)
                      ExpressionList (children 2)
                       Identifier vec
                       Literal Array_[Float64_1, Float64_1]
                   Literal UInt64_2
                   Set
   Function like (children 1)
    ExpressionList (children 2)
     Identifier explain
     Literal \'%vector_similarity%\'
