On 9/12/16 1:05 PM, phb07 wrote:
The drawback is the overhead of this added ANALYZE statement. With a
heavy processing like in this test case, it is worth to be done. But for
common cases, it's a little bit expensive.

You could always look at the number of rows affected by a command and make a decision on whether to ANALYZE based on that, possibly by looking at pg_stat_all_tables.n_mod_since_analyze.
Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX
Experts in Analytics, Data Architecture and PostgreSQL
Data in Trouble? Get it in Treble! http://BlueTreble.com
855-TREBLE2 (855-873-2532)   mobile: 512-569-9461

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