Re: pg_stat_statements fingerprinting logic and ArrayExpr

On 2013-12-10 14:30:36 -0800, Peter Geoghegan wrote:
> Did you really find pg_stat_statements to be almost useless in such
> situations? That seems worse than I thought.

It's very hard to see where you should spend efforts when every "logical
query" is split into hundreds of pg_stat_statement entries. Suddenly
it's important whether a certain counts of parameters are more frequent
than others because in the equally distributed cases they fall out of
p_s_s again pretty soon. I think that's probably a worse than average
case, but certainly not something only I could have the bad fortune of
looking at.

Greetings,

Andres Freund

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