Add cloud spanner and mssql compact to db specifications (#3105)

semantic_conventions/trace/database.yaml

@@ -19,6 +19,9 @@ groups:
             - id: mssql
               value: 'mssql'
               brief: 'Microsoft SQL Server'
+            - id: mssqlcompact
+              value: 'mssqlcompact'
+              brief: 'Microsoft SQL Server Compact'
             - id: mysql
               value: 'mysql'
               brief: 'MySQL'
@@ -160,6 +163,9 @@ groups:
             - id: clickhouse
               value: 'clickhouse'
               brief: 'ClickHouse'
+            - id: spanner
+              value: 'spanner'
+              brief: 'Cloud Spanner'
       - id: connection_string
         tag: connection-level
         type: string

specification/trace/semantic_conventions/database.md

@@ -70,6 +70,7 @@ Some database systems may allow a connection to switch to a different `db.user`,
 |---|---|
 | `other_sql` | Some other SQL database. Fallback only. See notes. |
 | `mssql` | Microsoft SQL Server |
+| `mssqlcompact` | Microsoft SQL Server Compact |
 | `mysql` | MySQL |
 | `oracle` | Oracle Database |
 | `db2` | IBM Db2 |
@@ -117,6 +118,7 @@ Some database systems may allow a connection to switch to a different `db.user`,
 | `cockroachdb` | CockroachDB |
 | `opensearch` | OpenSearch |
 | `clickhouse` | ClickHouse |
+| `spanner` | Cloud Spanner |
 <!-- endsemconv -->
 
 ### Notes and well-known identifiers for `db.system`