Dear All
We are in the process to upgrade from Oracle 11.2.0.4 to 12.1.0.2.13 ( SBP 12.1.0.2.5 201511 for Exadata).
One open question is the new 12c feature regarding Advanced Index Compression.
In the note
1888485 - Database Parameter for 12.1.0.2
they mentioned the hidden parameter "_advanced_index_compression_options" with the recommend value of 16.
In the referenced note
2138262 - Oracle Database 12c Advanced Compression for SAP Systems
it is mentioned
"...By setting the init.ora parameter _advanced_index_compression_options=16 all newly..."
For me it is not clear if this hidden parameter is recommended always to set or case by case? If it is set then all indexes are compressed.
Does someone has experience with this configuration?
thanks and regards
fabian