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Selection of index for CLUSTER

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Hello everyone,

Is there some guideline for selection of index to use for CLUSTER? This is rather important as physical table is reorganized according to that index I gather? The docs are mute on this.

The docs recommend running ANALYZE on the table.

hrs=# ANALYZE VERBOSE hosts;
INFO:  analyzing "public.hosts"
INFO: "hosts": scanned 47 of 47 pages, containing 765 live rows and 13 dead rows; 765 rows in sample, 765 estimated total rows
ANALYZE

Doh. Not much help here.

Regards,
mk

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