This adds a new fill mode last (last observation carried forward) for grafana
to the sql datasources. This fill mode will fill in the last seen value in a
series when a timepoint is missing or NULL if no value for that series has
been seen yet.
* modify $__timeGroup macro so it can be used in select clause
* fix $__interval_ms for postgres datasource
* use $__timeGroup macro in documentation
* fix annotation template query
remove title since its no longer used and add tags instead
* change __timeFilter macro to work on postgresql < 8.1 and redshift
* add postgresql datasource
* add rest of files for postgres datasource
* fix timeseries query, remove unused code
* consistent naming, refactoring
* s/mysql/postgres/
* s/mysql/postgres/
* couple more tests
* tests for more datatypes
* fix macros for postgres
* add __timeSec macro
* add frontend for postgres datasource
* adjust documentation
* fix formatting
* add proper plugin description
* merge editor changes from mysql
* port changes from mysql datasource
* set proper defaultQuery for postgres
* add time_sec to timeseries query
accept int for value for timeseries query
* revert allowing time_sec and handle int or float values as unix
timestamp for "time" column
* fix tslint error
* handle decimal values in timeseries query
* allow setting sslmode for postgres datasource
* use type switch for handling data types
* fix value for timeseries query
* refactor timeseries queries to make them more flexible
* remove debug statement from inner loop in type conversion
* use plain for loop in getTypedRowData
* fix timeseries queries
* adjust postgres datasource to tsdb refactoring
* adjust postgres datasource to frontend changes
* update lib/pq to latest version
* move type conversion to getTypedRowData
* handle address types cidr, inet and macaddr
* adjust response parser and docs for annotations
* convert unknown types to string
* add documentation for postgres datasource
* add another example query with metric column
* set more helpful default query
* update help text in query editor
* handle NULL in value column of timeseries query
* add __timeGroup macro
* add test for __timeGroup macro
* document __timeGroup and set proper default query for annotations
* fix typos in docs
* add postgres to list of datasources
* add postgres to builtInPlugins
* mysql: refactoring as prep for merging postgres
Refactors out the initialization of the xorm engine and the query logic
for an sql data source.
* mysql: rename refactoring + test update
* postgres:refactor to use SqlEngine(same as mysql)
Refactored to use a common base class with the MySql data source.
Other changes from the original PR:
- Changed time column to be time_sec to allow other time units in the
future and to be the same as MySQL
- Changed integration test to test the main Query method rather than
the private transformToTable method
- Changed the __timeSec macro name to __timeEpoch
- Renamed PostgresExecutor to PostgresQueryEndpoint
Fixes#9209 (the original PR)
* postgres: encrypt password on config page
With some other cosmetic changes to the config page:
- placeholder texts
- reset button for the password after it has been encrypted.
- default value for the sslmode field.
* postgres: change back col name to time from time_sec
* postgres mysql: remove annotation title
Title has been removed from annotations
* postgres: fix images for docs page
* postgres mysql: fix specs
