* materialize PublicChannels table
Introduce triggers for each supported database that automatically maintain a subset of the Channels table corresponding to only public channels. This improves corresponding queries that no longer need to filter out 99% DM channels.
This initial commit modifies the channel store directly for easier code reviewing, but the next wraps an experimental version around it to enable a kill switch in case there are unforeseen performance regressions.
This addresses [MM-11886](https://mattermost.atlassian.net/browse/MM-11886) and [MM-11945](https://mattermost.atlassian.net/browse/MM-11945).
* extract the experimental public channels materialization
Wrap the original channel store with an experimental version that
leverages the materialized public channels, but can be disabled to
fallback to the original implementation.
This addresses MM-11947.
* s/ExperimentalPublicChannelsMaterialization/EnablePublicChannelsMaterialization/
* simplify error handling
* move experimental config listener until after store is initialized
* 8272 added the username and icon as part of the model and persisted the same
* 8272 added the custome icon and name when set to the web hook response
* 8272 changed the infinte loop to timeout after 5 seconds
* 8272 fixed review comments
* Add Purpose as a searchable field
* Add New Index and Remove old for Channels
* Include Purpose in FullTextSearch Clause
* Move removeIndex for Channels into upgrade.go
* Implementing structured logging
* Changes to en.json to allow refactor to run.
* Fixing global logger
* Structured logger initalization.
* Add caller.
* Do some log redirection.
* Auto refactor
* Cleaning up l4g reference and removing dependancy.
* Removing junk.
* Copyright headers.
* Fixing tests
* Revert "Changes to en.json to allow refactor to run."
This reverts commit fd8249e99bcad0231e6ea65cd77c32aae9a54026.
* Fixing some auto refactor strangeness and typo.
* Making keys more human readable.
* unit test TestGet(Search)Replica
This adds partial, testing-focused support for SQLite, as well as removing
some translated log messages that required initializing i18n just for
testing.
* avoid returning master twice when no replicas are configured
* remove duplicate indexes
* unit test GetAllConns
* Add supported timezones into config
Remove Timezone list creation in favor of timezone from configs
Add Timezone field to Users table
Clean up format of SupportedTimezones in config
* Remove unwanted change
* Add test for updating user timezone
* Add empty map[string]string if Timezone is null
* Add EnableTimezoneSelection config
* Revert back to map[string]string for ClientConfig
* Refactor SupportedTimezones into timezones.json
* Include timezones.json in TestConfigFlag
* Add timezone api endpoint
* Bump varchar size to 256 and setMaxSize in user_store
* Refactor LoadConfig to LoadConfig and LoadTimezoneConfig
* Remove unnecessary argument in LoadConfig, mail_test
* Add test for timezone endpoint
* Add license header
* Refactor timezones endpoint to system.go
* Add system base route to timezone endpoint
* db timezone upgrade in db v4.9
* Avoid saving SupportedTimezones to config.json
* Add timezonePath support in config
* Remove EnableTimezoneSelection from config
* Use return statement without return parameter
* Refactor test for SupportedTimezones
* Check for supportedTimezone != nil instead of using len
* Decouple SupportedTimezones out of Config
* Fix failing test
* Add LastTeamIconUpdate back in upgrade.go
* Write timezone config in config_flag_test
* Add code fallback for default timezone support
* Cherry-picking 7b2861de3a to master because enterprise/master has code in it that enterprise/release-4.7 does not, and I don't want enterprise/master to break the next time somebody merges enterprise/release-4.7 to enterprise/master
* Renamed file to match existing scheme
(cherry picked from commit 8c22c5c6c6)
* XYZ-32: Changes type of 'position' column on 'users' table.
* XYZ-32: Uncomment to run on CI and pre-release.
* XYZ-32: Reverts translation changes.
* XYZ-32: Fix for gofmt.
