Jin>In ReflectiveSchema, Statistics of FieldTable is given as UNKNOWN[1][2].
Please check[CALCITE-3661] Derive rowCount statistics for tables in
ReflectiveSchema that are based on arrays/collections
and [CALCITE-3680] Add ability to express unique constraints in
ReflectiveSchema
commits in
Hi, Vladimir ~
In ReflectiveSchema, Statistics of FieldTable is given as UNKNOWN[1][2].
When reading a table's row count, if no statistics given, a default value
of 100 will be returned [3] -- this is relatively a bigger value compared
with the fields defined in HRFKUKSchema.
When a materialized
Hi,
It looks like MaterializationTest heavily relies on inaccurate statistics
for hr.emps and hr.depts tables.
I was trying to improve statistic estimation for better join planning (see
https://github.com/apache/calcite/pull/1712 ),
and it looks like better estimates open the eyes of the
