InfluxDB: SQL Support (#72167)

* Add influxdbSqlSupport feature toggle

* Add SQL option to the config page

* Add SQL backend

* Add metadata support in config page

* Implement unified querying

* Fix healthcheck query

* fsql tests

* secure grpc by default

* code cleanup

* Query handing for sql mode

* Implement a placeholder sql editor

* Fix query language dropdown

* go mod updates

* make lint-go

* more make lint-go

* remove unused runQuery

* switch statements with default case

* linting again

pkg/tsdb/influxdb/models/datasource_info.go

@@ -6,8 +6,9 @@ import (
 
 type DatasourceInfo struct {
 	HTTPClient *http.Client
-	Token      string
-	URL        string
+
+	Token string
+	URL   string
 
 	DbName        string `json:"dbName"`
 	Version       string `json:"version"`
@@ -16,4 +17,9 @@ type DatasourceInfo struct {
 	DefaultBucket string `json:"defaultBucket"`
 	Organization  string `json:"organization"`
 	MaxSeries     int    `json:"maxSeries"`
+
+	// Flight SQL metadata
+	Metadata []map[string]string `json:"metadata"`
+	// FlightSQL grpc connection
+	SecureGrpc bool `json:"secureGrpc"`
 }