unified-storage: move rvmanager into its own package (#115445)

* unified-storage: move rvmanager into its own package so it can be reused with sqlkv later

pkg/storage/unified/sql/rvmanager/queries.go

@@ -0,0 +1,84 @@
+package rvmanager
+
+import (
+	"github.com/grafana/grafana/pkg/storage/unified/sql/sqltemplate"
+)
+
+type SqlResourceUpdateRVRequest struct {
+	sqltemplate.SQLTemplate
+	GUIDToRV          map[string]int64
+	GUIDToSnowflakeRV map[string]int64
+}
+
+func (r SqlResourceUpdateRVRequest) Validate() error {
+	return nil // TODO
+}
+
+func (r SqlResourceUpdateRVRequest) SlashFunc() string {
+	if r.DialectName() == "postgres" {
+		return "CHR(47)"
+	}
+
+	return "CHAR(47)"
+}
+
+func (r SqlResourceUpdateRVRequest) TildeFunc() string {
+	if r.DialectName() == "postgres" {
+		return "CHR(126)"
+	}
+
+	return "CHAR(126)"
+}
+
+type ResourceVersionResponse struct {
+	ResourceVersion int64
+	CurrentEpoch    int64
+}
+
+func (r *ResourceVersionResponse) Results() (*ResourceVersionResponse, error) {
+	return r, nil
+}
+
+type sqlResourceVersionGetRequest struct {
+	sqltemplate.SQLTemplate
+	Group, Resource string
+	ReadOnly        bool
+	Response        *ResourceVersionResponse
+}
+
+func (r sqlResourceVersionGetRequest) Validate() error {
+	return nil // TODO
+}
+func (r sqlResourceVersionGetRequest) Results() (*ResourceVersionResponse, error) {
+	return &ResourceVersionResponse{
+		ResourceVersion: r.Response.ResourceVersion,
+		CurrentEpoch:    r.Response.CurrentEpoch,
+	}, nil
+}
+
+type SqlResourceVersionUpsertRequest struct {
+	sqltemplate.SQLTemplate
+	Group, Resource string
+	ResourceVersion int64
+}
+
+func (r SqlResourceVersionUpsertRequest) Validate() error {
+	return nil // TODO
+}
+
+type SqlResourceVersionGetRequest struct {
+	sqltemplate.SQLTemplate
+	Group, Resource string
+	ReadOnly        bool
+	Response        *ResourceVersionResponse
+}
+
+func (r SqlResourceVersionGetRequest) Validate() error {
+	return nil // TODO
+}
+func (r SqlResourceVersionGetRequest) Results() (*ResourceVersionResponse, error) {
+	return &ResourceVersionResponse{
+		ResourceVersion: r.Response.ResourceVersion,
+		CurrentEpoch:    r.Response.CurrentEpoch,
+	}, nil
+}