Old patch was using old validation functions, but there are already
validation functions that both read and validate the policy, so using
those. Also removing the old `job_config_check` function since that is
no longer use and instead adding a `job_config_check` that calls the
checking function with the configuration.
Previous pull request #4269 introduced new format for Continuous
Aggregates and we also added regression tests for the `deprecated`
version to make sure it will keep working until we decide to completely
deprecate and remove the old version.
Unfortunately for some deprecated continous aggregates regression tests
we miss to set properly the flag `timescaledb.finalized=false`.
Fixed it by properly setting the `timecaledb.finalized=false` during
the continuous aggregate creation.
Following work started by #4294 to improve performance of Continuous
Aggregates by removing the re-aggregation in the user view.
This PR get rid of `partialize_agg` and `finalize_agg` aggregate
functions and store the finalized aggregated (plain) data in the
materialization hypertable.
Because we're not storing partials anymore and removed the
re-aggregation, now is be possible to create indexes on aggregated
columns in the materialization hypertable in order to improve the
performance even more.
Also removed restrictions on types of aggregates users can perform
with Continuous Aggregates:
* aggregates with DISTINCT
* aggregates with FILTER
* aggregates with FILTER in HAVING clause
* aggregates without combine function
* ordered-set aggregates
* hypothetical-set aggregates
By default new Continuous Aggregates will be created using this new
format, but the previous version (with partials) will be supported.
Users can create the previous style by setting to `false` the storage
paramater named `timescaledb.finalized` during the creation of the
Continuous Aggregate.
Fixes#4233
