Tom Lane [EMAIL PROTECTED] writes:
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
I was planning to use the first and last histogram values for the frame of
reference. It could still produce some weird graphs but those cases are
precisely the cases where users
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
Gregory Stark [EMAIL PROTECTED] writes:
Attached is a patch which implements, as discussed briefly on -hackers, a
. user-visible function to get at the information that convert_to_scalar uses
to
generate selectivity
Tom Lane [EMAIL PROTECTED] writes:
When complaining I hadn't read the pghackers thread in which you
suggested this, and now that I'm caught up on email I remain
unconvinced. What do you need convert_to_scalar for in order to display
the pg_statistic histogram? You've already got the
Tom Lane [EMAIL PROTECTED] writes:
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
When complaining I hadn't read the pghackers thread in which you
suggested this, and now that I'm caught up on email I remain
unconvinced. What do you need convert_to_scalar for in
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
How so? The entries in the histogram are equidistant by definition.
Huh? They have equal number of values between them, they're not equidistant in
the scalar space. So the area of each bar should be the same but the
Tom Lane [EMAIL PROTECTED] writes:
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
How so? The entries in the histogram are equidistant by definition.
Huh? They have equal number of values between them, they're not equidistant
in
the scalar space. So the area
Gregory Stark [EMAIL PROTECTED] writes:
Tom Lane [EMAIL PROTECTED] writes:
You're presuming there exists a linear scalar space to reference the
results to.
I was planning to use the first and last histogram values for the frame of
reference. It could still produce some weird graphs but those
Attached is a patch which implements, as discussed briefly on -hackers, a
user-visible function to get at the information that convert_to_scalar uses to
generate selectivity estimates.
The main use case for this is for tools such as pgadmin which want to make
sense of the histograms, they need
Gregory Stark [EMAIL PROTECTED] writes:
Attached is a patch which implements, as discussed briefly on -hackers, a
user-visible function to get at the information that convert_to_scalar uses to
generate selectivity estimates.
This is an astonishingly bad idea, as it exposes and thereby sets in
Tom Lane [EMAIL PROTECTED] writes:
Gregory Stark [EMAIL PROTECTED] writes:
Attached is a patch which implements, as discussed briefly on -hackers, a
user-visible function to get at the information that convert_to_scalar uses
to
generate selectivity estimates.
This is an astonishingly bad
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