Hi Rémi
Hey sorry if my answer is stupid,
but there is an extension for array, even if it is limited to int (but
int could be indexes of row)
It's named http://www.postgresql.org/docs/9.3/static/intarray.html
It provides essential function, although lacking some (I
re-implemented union of array with disjoint result).
I think this extension uses indexes
Thanks for your answer. If there were a similar strarray, it would be
top nice :-)
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