SQL/Blob: Add support for blob storage to SQL backend (#98192)

pkg/storage/unified/sql/data/resource_blob_query.sql

@@ -0,0 +1,17 @@
+SELECT
+  {{ .Ident "uuid" }},
+  {{ .Ident "value" }},
+  {{ .Ident "content_type" }}
+FROM {{ .Ident "resource_blob" }}
+WHERE 1 = 1
+  AND {{ .Ident "namespace" }} = {{ .Arg .Key.Namespace }}
+  AND {{ .Ident "group" }}     = {{ .Arg .Key.Group }}
+  AND {{ .Ident "resource" }}  = {{ .Arg .Key.Resource }}
+  {{ if .Key.Name }}
+  AND {{ .Ident "name" }}      = {{ .Arg .Key.Name }}
+  {{ end }}
+  {{ if .UID }}
+  AND {{ .Ident "uuid" }}      = {{ .Arg .UID }}
+  {{ end }}
+ORDER BY {{ .Ident "created" }} DESC
+LIMIT 1;