Eelke Klein wrote
> What I noticed is that are no most common values mentioned ofcourse the
> value 1 only occurs once in the column but as all other values are NULL
> you
> could argue it is a common value.
A random sampling is unlikely to choose a record that only appears in 0.1
percent of the t
In a complex query I have query I noticed that the planner made a bad
estimate for a join between two tables in the query (I made sure statistics
were up to date).
The join was on a single column. In the first table are about 985 rows. All
rows except one have a NULL value in the join column the
