What’s new with Oracle database 18.8 versus 18.9
For the difference between Oracle database versions 18.8 and 18.9 this too follows the line of a low amount of differences.
As always, there are some parameters that have changed from being undocumented spare to being undocumented with a name.
Also, the DBA and CDB table (DBA|CDB)_REGISTRY_BACKPORTS is back again. The disappearance of this table in 18.8 turned out to be a bug. There is a patch for 18.8 if you need this table.
parameters unique in version 18.8 versus 18.9 NAME -------------------------------------------------- _eighth_spare_parameter _one-hundred-and-forty-eighth_spare_parameter _second_spare_parameter parameters unique in version 18.9 versus 18.8 NAME -------------------------------------------------- _bug29825525_bct_public_dba_buffer_dynresize_delay _enable_ptime_update_for_sys _session_modp_list dba tables unique to 18.8 versus 18.9 dba tables unique to 18.9 versus 18.8 NAME ---------------------------------------------------------------------------------------------------- DBA_REGISTRY_BACKPORTS cdb tables unique to 18.8 versus 18.9 cdb tables unique to 18.9 versus 18.8 NAME ---------------------------------------------------------------------------------------------------- CDB_REGISTRY_BACKPORTS
On the C function side, it becomes apparent that this update is truly an update, roughly the number of functions that have gone and appeared are the same. A large portion of the functions that are removed in 18.9 are functions that have to do with AWR, and some other functions dealing with ASM and others.
The functions that have been added seem to be quite diverse,
code symbol names unique in version 18.8 versus 18.9 NAME RESOLVE ANNOTATION ------------------------------------------------------------ ------------------------------------------------------------ -------------------------------------------------------------------------------- R_CR_entropy_resource_init R_CR_entropy_resource_init ?? kcfis_clear_lob (kcfis)_clear_lob kernel cache file management intelligent storage ?? kds_update_turbo_scan_pivot_statistics (kds)_update_turbo_scan_pivot_statistics kernel data seek/scan ?? kewramcs_app_map_condbid_str (kewr)amcs_app_map_condbid_str kernel event AWR repository ?? kewramvn_append_mdb_vvwname (kewr)amvn_append_mdb_vvwname kernel event AWR repository ?? kewraxc_attribute_xcb (kewr)axc_attribute_xcb kernel event AWR repository ?? kewrbtsg_build_topseg (kewr)btsg_build_topseg kernel event AWR repository ?? kewrccsq_collect_csql (kewr)ccsq_collect_csql kernel event AWR repository ?? kewrgcfes_get_cacheid_from_enum_str (kewr)gcfes_get_cacheid_from_enum_str kernel event AWR repository ?? kewrmplvl_map_snap_level (kewr)mplvl_map_snap_level kernel event AWR repository ?? kewrpfbue_pdb_from_buffer_entry (kewr)pfbue_pdb_from_buffer_entry kernel event AWR repository ?? kewrptsq_prep_topsql (kewr)ptsq_prep_topsql kernel event AWR repository ?? kewrrdsi_rank_dstat_item (kewr)rdsi_rank_dstat_item kernel event AWR repository ?? kewrrtsq_rank_topsql (kewr)rtsq_rank_topsql kernel event AWR repository ?? kewrsaobn_set_all_objnames (kewr)saobn_set_all_objnames kernel event AWR repository ?? kewrsonie_set_object_names_in_entry (kewr)sonie_set_object_names_in_entry kernel event AWR repository ?? kewrsqlc_sql_iscolored_cb (kewr)sqlc_sql_iscolored_cb kernel event AWR repository ?? kfatknHsh (kfa)tknHsh kernel automatic storage management alias operations ?? kfdDskComputeHashForRow (kfd)DskComputeHashForRow kernel automatic storage management disk ?? kfioSrMsgBuf_ack (kfio)SrMsgBuf_ack kernel automatic storage management translation I/O layer ?? kfkcrRefresh (kfk)crRefresh kernel automatic storage management KFK ?? kfnFreeKfnpnmMem (kfn)FreeKfnpnmMem kernel automatic storage management networking subsystem ?? kkqtutlSelItemMatches (kkqt)utlSelItemMatches kernel compile query table ?? kkquIsCorrTransInList (kkqu)IsCorrTransInList kernel compile query subquery unnesting ?? krvxgtf (krvx)gtf kernel redo recovery extract ?? krvxrsr_SkipRedo (krvx)rsr_SkipRedo kernel redo recovery extract ?? ksmg_estimate_sgamax (ksm)g_estimate_sgamax kernel service memory ?? kzagetcid (kza)getcid kernel security audit ?? lxCharsetIsByteUnique (l)xCharsetIsByteUnique core library functions ?? qeroiFirstPart (qeroi)FirstPart query execute rowsource extensibel indexing query component ?? qkspmTravInit (qkspm)TravInit query kernel sql plan management ?? ri_entcb_cmd_func ri_entcb_cmd_func ?? zt_yield_entropy_source_cb (zt)_yield_entropy_source_cb security encryption ?? code symbol names unique in version 18.9 versus 18.8 NAME RESOLVE ANNOTATION ------------------------------------------------------------ ------------------------------------------------------------ -------------------------------------------------------------------------------- apagwnrn (apa)gwnrn SQL Access Path Analysis ?? apagwnrnprd (apa)gwnrnprd SQL Access Path Analysis ?? apatwnrn (apa)twnrn SQL Access Path Analysis ?? kafcpy_one_row (kaf)cpy_one_row kernel access fetch ?? kcbz_eff_bsz (kcbz)_eff_bsz kernel cache buffers subroutines for kcb ?? kdilm_row_diskcompress_policy_type (kdil)m_row_diskcompress_policy_type kernel data index load ?? kdsReadAheadSafe (kds)ReadAheadSafe kernel data seek/scan ?? kewrcc_bind_cb (kewr)cc_bind_cb kernel event AWR repository ?? kewrcc_check_columns (kewr)cc_check_columns kernel event AWR repository ?? kewrcc_fetch_cb (kewr)cc_fetch_cb kernel event AWR repository ?? kfdp_getNormalFgCnt (kfdp)_getNormalFgCnt kernel automatic storage management disk PST ?? kfkIsAFDLoaded (kfk)IsAFDLoaded kernel automatic storage management KFK ?? kgskltyp (kgsk)ltyp kernel generic service resource manager ?? kjcts_syncseq_incident_dump (kjc)ts_syncseq_incident_dump kernel lock management communication ?? kkoRowNumLimit_Int (kko)RowNumLimit_Int kernel compile optimizer ?? kkoWnRowNumLimit (kko)WnRowNumLimit kernel compile optimizer ?? kkqljpUpdateXplAnn (kkq)ljpUpdateXplAnn kernel compile query ?? kkqoreAndDriver (kkqore)AndDriver kernel compile query or-expansion ?? kpcxdrBindReorderInfo (kp)cxdrBindReorderInfo kernel programmatic interface ?? kpdbCheckCommonprofileCbk (kpdb)CheckCommonprofileCbk kernel programmatic interface pluggable database ?? kpdbSyncCreateProfile (kpdbSync)CreateProfile kernel programmatic interface pluggable database DBMS_PDB.KPDBSYNC SYNC_PDB ?? kpossGetEncNonTemplateOverflow (kpo)ssGetEncNonTemplateOverflow kernel programmatic interface oracle ?? kpossSetEncNonTemplateOverflow (kpo)ssSetEncNonTemplateOverflow kernel programmatic interface oracle ?? kpossTemplateMatch_ (kpo)ssTemplateMatch_ kernel programmatic interface oracle ?? kpossTemplateSet (kpo)ssTemplateSet kernel programmatic interface oracle ?? kpussTemplateSend (kpu)ssTemplateSend kernel programmatic interface user ?? kpuxcSessionSignatureRecv (kpuxc)SessionSignatureRecv kernel programmatic interface user db replay? ?? kpuxcSessionTemplateSend (kpuxc)SessionTemplateSend kernel programmatic interface user db replay? ?? kpuxcSessionTemplatesFree (kpuxc)SessionTemplatesFree kernel programmatic interface user db replay? ?? krvxdsr (krvx)dsr kernel redo recovery extract ?? ksmg_estimate_nonimc_sga_size (ksm)g_estimate_nonimc_sga_size kernel service memory ?? ksp_init_modp_send (ksp)_init_modp_send kernel service parameter ?? ksp_modp_get_enckeyvals (ksp)_modp_get_enckeyvals kernel service parameter ?? ksp_modp_get_keyvals (ksp)_modp_get_keyvals kernel service parameter ?? ksp_modp_set_enckeyvals (ksp)_modp_set_enckeyvals kernel service parameter ?? ksp_modp_set_keyvals (ksp)_modp_set_keyvals kernel service parameter ?? ksp_modp_update_sign (ksp)_modp_update_sign kernel service parameter ?? kspdecbuf (ksp)decbuf kernel service parameter ?? kspencbuf (ksp)encbuf kernel service parameter ?? qergiSetFirstPartFlag (qergi)SetFirstPartFlag query execute rowsource granule iterator (partitioning? or PX granules?) ?? qeroiFindGranuleIter (qeroi)FindGranuleIter query execute rowsource extensibel indexing query component ?? qjsnIsDollarOnly (qjsn)IsDollarOnly query json ?? qjsnJsonSerialize_optim (qjsn)JsonSerialize_optim query json ?? qkaIsRTRIMRequiredForViewCol (qka)IsRTRIMRequiredForViewCol query kernel allocation ?? qksopCheckConstOrOptWithBindInAndChains (qksop)CheckConstOrOptWithBindInAndChains query kernel sql operand processing ??
(disclaimer: I can’t look at the sourcecode, which means I look at the oracle executable with normal, modern tools. This also means that there’s a of stuff that I don’t see, for example if functionality has been added inside an existing function, then that’s totally invisible to me)
Frits Hoogland Weblog 