SQL Expressions: Re-implement feature using go-mysql-server (#99521)

* Under feature flag `sqlExpressions` and is experimental
* Excluded from arm32
* Will not work with the Query Service yet
* Does not have limits in place yet
* Does not working with alerting yet
* Currently requires "prepare time series" Transform for time series viz
 
---------

Co-authored-by: Sam Jewell <sam.jewell@grafana.com>

pkg/services/featuremgmt/codeowners.go

@@ -29,4 +29,5 @@ const (
 	grafanaDatabasesFrontend                    codeowner = "@grafana/databases-frontend"
 	grafanaOSSBigTent                           codeowner = "@grafana/oss-big-tent"
 	growthAndOnboarding                         codeowner = "@grafana/growth-and-onboarding"
+	grafanaDatasourcesCoreServicesSquad         codeowner = "@grafana/grafana-datasources-core-services"
 )

pkg/services/featuremgmt/registry.go

@@ -1054,7 +1054,7 @@ var (
 			Description:  "Enables using SQL and DuckDB functions as Expressions.",
 			Stage:        FeatureStageExperimental,
 			FrontendOnly: false,
-			Owner:        grafanaAppPlatformSquad,
+			Owner:        grafanaDatasourcesCoreServicesSquad,
 		},
 		{
 			Name:         "nodeGraphDotLayout",

pkg/services/featuremgmt/toggles_gen.csv

@@ -138,7 +138,7 @@ alertingSaveStateCompressed,experimental,@grafana/alerting-squad,false,false,fal
 scopeApi,experimental,@grafana/grafana-app-platform-squad,false,false,false
 promQLScope,GA,@grafana/oss-big-tent,false,false,false
 logQLScope,privatePreview,@grafana/observability-logs,false,false,false
-sqlExpressions,experimental,@grafana/grafana-app-platform-squad,false,false,false
+sqlExpressions,experimental,@grafana/grafana-datasources-core-services,false,false,false
 nodeGraphDotLayout,experimental,@grafana/observability-traces-and-profiling,false,false,true
 groupToNestedTableTransformation,GA,@grafana/dataviz-squad,false,false,true
 newPDFRendering,GA,@grafana/sharing-squad,false,false,false

pkg/services/featuremgmt/toggles_gen.json

@@ -3658,13 +3658,16 @@
     {
       "metadata": {
         "name": "sqlExpressions",
-        "resourceVersion": "1718727528075",
-        "creationTimestamp": "2024-02-27T21:16:00Z"
+        "resourceVersion": "1738589190784",
+        "creationTimestamp": "2024-02-27T21:16:00Z",
+        "annotations": {
+          "grafana.app/updatedTimestamp": "2025-02-03 13:26:30.784245615 +0000 UTC"
+        }
       },
       "spec": {
         "description": "Enables using SQL and DuckDB functions as Expressions.",
         "stage": "experimental",
-        "codeowner": "@grafana/grafana-app-platform-squad"
+        "codeowner": "@grafana/grafana-datasources-core-services"
       }
     },
     {