Very long materialized view refresh when using self-referencing table

Question

hi,
I have the following query, that takes 15 sec. to execute. When building a materialized view for it, the refreshing process doesn't stop for hours. The result of the query are about 500 rows and the tables contain not more than some 1000 rows, so it's a really simple query.
   SELECT a.A,
          b.B,
          c.C
     FROM (SELECT *
             FROM (SELECT a
                     FROM TableA)) a,
          (SELECT b
             FROM TableA
            WHERE type = 3) b,
          (SELECT c
             FROM TableA) c
    WHERE TRIM (a.x) = TRIM (b.y) AND b.z = c.w;I think it has something to do with the fact, that the same table is used 3 times in the query. When I look in the trace I see that the following statement is executed:
INSERT   /*+ BYPASS_RECURSIVE_CHECK */
      INTO                                DM.Test_MV
   SELECT ...What is the + BYPASS_RECURSIVE_CHECK / hint doing? Can I deactivate it somehow?
And why is there any difference between the query execution and the query execution when refreshing the mat view?
Thanks for your help!

Answer 1

5 digit version no? lots of bugs with mviews out there.
theres a specific note (not a bug) on support 1115148.1 that references that hint though, so try dropping and recreating the view before refreshing.