Add a parameter `schedule_interval` to retention and
compression policies to allow users to define the schedule
interval. Fall back to previous default if no value is
specified.
Fixes#3806
This patch locks down search_path in extension install and update
scripts to only contain pg_catalog, this requires that any reference
in those scripts is fully qualified. Additionally we add explicit
create commands to all update scripts for objects added to the
public schema. This change will make update scripts fail if a
function with identical signature already exists when installing
or upgrading instead reusing the existing object.
Renaming the parameter `hypertable_or_cagg` in functions `drop_chunks`
and `show_chunks` to `relation` and changing parameter name from
`main_table` to `hypertable` or `relation` depending on context.
This moves the SQL definitions for policy and job APIs to their
separate files to improve code structure. Previously, all of these
user-visible API functions were located in the `bgw_scheduler.sql`
file, mixing internal and public functions and APIs.
To improved the structure, all API-related functions are now located
in their own distinct SQL files that have the `_api.sql` file
ending. Internal policy functions have been moved to
`policy_internal.sql`.
