Dear list,
This might be too basic for a question but I just couldn't find the
answer so far.
Does PostgreSQL create an implicit index also for foreign keys? or must
I create it explicitly?
Thank you,
Marc Compte
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on
each of the fields? or is the index created on the composition only?
For instance, in the implementation of a N:M relationship, declaring the
primary as (foreign1, foreign2) will create two indexes? or just one?
Thanks again
Marc Compte
En/na Richard Broersma Jr ha escrit:
Does PostgreSQL
