danch wrote:
Even ignoring the table-lock escalation issue, this is what should
happen. In fact, I'm a little surprised that Oracle doesn't just create
the indices: I believe PostgreSQL does.


I believe it's because they want to allow a DBA to configure the index in a
specific way e.g. in a specific tablespace, with additional columns for
index-only joins, as part of the PK (leading to CMR problems :-( ), and so
on.

I don't think MS-SQL creates an index either (although it's self-tuning
mechanism may add one later).



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