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What’s new with Oracle database 18.11 versus 18.12

This blogpost takes a look at the technical differences between Oracle database 18 RU 11 (july 2020) and RU 12 (october 2020). This gives technical specialists an idea of the differences, and gives them the ability to assess if the RU impacts anything.

Functions


code symbol names unique in version 18.11 versus 18.12 -- so removed functions in RU 12.

NAME                                                         RESOLVE                                                      ANNOTATION                                                                                 ARCHIVE_OBJECT
------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------
Java_sun_java2d_pipe_ShapeSpanIterator_appendCubic           (Java_sun_java2d_pipe_ShapeSpanIterator_)appendCubic         java classes sun. java2d. pipe. ShapeSpanIterator. ??
Java_sun_java2d_pipe_ShapeSpanIterator_appendLine            (Java_sun_java2d_pipe_ShapeSpanIterator_)appendLine          java classes sun. java2d. pipe. ShapeSpanIterator. ??
Java_sun_java2d_pipe_ShapeSpanIterator_appendQuadratic       (Java_sun_java2d_pipe_ShapeSpanIterator_)appendQuadratic     java classes sun. java2d. pipe. ShapeSpanIterator. ??
Java_sun_java2d_pipe_ShapeSpanIterator_beginSubpath          (Java_sun_java2d_pipe_ShapeSpanIterator_)beginSubpath        java classes sun. java2d. pipe. ShapeSpanIterator. ??
Java_sun_java2d_pipe_ShapeSpanIterator_endPath               (Java_sun_java2d_pipe_ShapeSpanIterator_)endPath             java classes sun. java2d. pipe. ShapeSpanIterator. ??
Java_sun_java2d_pipe_ShapeSpanIterator_getCPathConsumer      (Java_sun_java2d_pipe_ShapeSpanIterator_)getCPathConsumer    java classes sun. java2d. pipe. ShapeSpanIterator. ??
kkdlpGetObjn                                                 (kkdl)pGetObjn                                               kernel compile dictionary lookup ??
kxttSCNGet                                                   (kxtt)SCNGet                                                 kernel execution temporary table operations ??
kxttSCNGetBoth                                               (kxtt)SCNGetBoth                                             kernel execution temporary table operations ??
kzpRoleEnabled                                               (kzp)RoleEnabled                                             kernel security privileges ??
qkspmTravInit                                                (qkspm)TravInit                                              query kernel sql plan management ??
skgpgprocstat                                                (skg)pgprocstat                                              operating system dependent kernel generic ??
skgpgthrstat                                                 (skg)pgthrstat                                               operating system dependent kernel generic ??

code symbol names unique in version 18.11 versus 18.12 (top 11) -- so added in the RU 12.

NAME                                               RESOLVE                                            ANNOTATION                                                                       ARCHIVE_OBJECT                                                 COUNT(*)
-------------------------------------------------- -------------------------------------------------- -------------------------------------------------------------------------------- ------------------------------------------------------------ ----------
ECGr                                               (EC)Gr                                             elleptic curve cryptography ??                                                   libjavavm18.a:ecl.o                                                   7
Java                                               Java                                               java classes                                                                     libjavavm18.a:ShapeSpanIterator.o                                     7
ec_G                                               (ec_)G                                             elleptic curve cryptography ??                                                   libjavavm18.a:ecp_jac.o                                               7
mp_c                                               (mp_)c                                             multiple precision cryptography ??                                               libjavavm18.a:mpi.o                                                   7
mp_i                                               (mp_)i                                             multiple precision cryptography ??                                               libjavavm18.a:mpi.o                                                   7
mp_t                                               (mp_)t                                             multiple precision cryptography ??                                               libjavavm18.a:mpi.o                                                   7
mp_b                                               (mp_)b                                             multiple precision cryptography ??                                               libjavavm18.a:mp_gf2m.o                                               8
mp_s                                               (mp_)s                                             multiple precision cryptography ??                                               libjavavm18.a:mpi.o                                                  11
kewr                                               kewr                                               kernel event AWR repository                                                      libserver18.a:kewr.o                                                 14
ec_G                                               (ec_)G                                             elleptic curve cryptography ??                                                   libjavavm18.a:ecl_gf.o                                               21
s_mp                                               s_mp                                               cryptography multiple precision                                                  libjavavm18.a:mpi.o                                                  49

This is a poor, yet one of the only ways to understand what is going on inside the oracle executable.
There aren’t that many thing removed, which is understandable. Therefore I listed all the functions that were removed, not a as a grouped overview. The archive:object annotation is not there, I started doing that for the latest RU.
For the functions that were added, the vast majority comes from libjavavm18, and seem to be cryptographic related functions.

The only group that might show something is kewr (AWR), however I cannot see something in general that is changed, the names seem random:

NAME                                                         RESOLVE                                                      ANNOTATION                                                                                 ARCHIVE_OBJECT
------------------------------------------------------------ ------------------------------------------------------------ ------------------------------------------------------------------------------------------ ------------------------------------------------------------
kewramcs_app_map_condbid_str                                 (kewr)amcs_app_map_condbid_str                               kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewramvn_append_mdb_vvwname                                  (kewr)amvn_append_mdb_vvwname                                kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewraxc_attribute_xcb                                        (kewr)axc_attribute_xcb                                      kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrbtsg_build_topseg                                        (kewr)btsg_build_topseg                                      kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrccsq_collect_csql                                        (kewr)ccsq_collect_csql                                      kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrgcfes_get_cacheid_from_enum_str                          (kewr)gcfes_get_cacheid_from_enum_str                        kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrmplvl_map_snap_level                                     (kewr)mplvl_map_snap_level                                   kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrpfbue_pdb_from_buffer_entry                              (kewr)pfbue_pdb_from_buffer_entry                            kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrptsq_prep_topsql                                         (kewr)ptsq_prep_topsql                                       kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrrdsi_rank_dstat_item                                     (kewr)rdsi_rank_dstat_item                                   kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrrtsq_rank_topsql                                         (kewr)rtsq_rank_topsql                                       kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrsaobn_set_all_objnames                                   (kewr)saobn_set_all_objnames                                 kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrsonie_set_object_names_in_entry                          (kewr)sonie_set_object_names_in_entry                        kernel event AWR repository ??                                                             libserver18.a:kewr.o
kewrsqlc_sql_iscolored_cb                                    (kewr)sqlc_sql_iscolored_cb                                  kernel event AWR repository ??                                                             libserver18.a:kewr.o

Outside of code changes, there isn’t anything changed in the data dictionary.