> 2. I found that using the now() function - and arbitrary interval will
> produce a different execution plan that using a specific date. For example:
> assuming the current time is 16:00:
> a) where start_date > now() - interval '4 hours' scans all child tables.
> b) where start_date >
My post might have been a little premature - and I apologize for that.
I have figured out what was causing the problem:
1. Constraint exclusion was disabled. I re-enabled.
2. I found that using the now() function - and arbitrary interval will
produce a different execution plan that using a speci
On Jul 21, 2006, at 12:17 PM, Kevin Keith wrote:
I have a case where I am partitioning tables based on a date range
in version 8.1.4. For example:
table_with_millions_of_records
interaction_id char(16) primary key
start_date timestamp (without timezone) - indexed
.. other columns
child_1
I have a case where I am partitioning tables based on a date range in
version 8.1.4. For example:
table_with_millions_of_records
interaction_id char(16) primary key
start_date timestamp (without timezone) - indexed
.. other columns
child_1 start_date >= 2006-07-21 00:00:00
child_2 start_
