diff --git a/tso.md b/tso.md
index 897006c0120e1..3d55849f20d9e 100644
--- a/tso.md
+++ b/tso.md
@@ -26,10 +26,7 @@ SELECT @ts;
 
 Note that this is done in a transaction with `BEGIN; ...; ROLLBACK` because TSO timestamps are assigned per transaction.
 
-The TSO timestamp you get from the preceding example is a decimal number. You can use the following SQL functions to parse the timestamp:
-
-- [`TIDB_PARSE_TSO()`](/functions-and-operators/tidb-functions.md#tidb_parse_tso)
-- [`TIDB_PARSE_TSO_LOGICAL()`](/functions-and-operators/tidb-functions.md)
+The TSO timestamp you get from the preceding example is a decimal number. You can use the SQL function [`TIDB_PARSE_TSO()`](/functions-and-operators/tidb-functions.md#tidb_parse_tso) to parse the timestamp:
 
 ```sql
 SELECT TIDB_PARSE_TSO(443852055297916932);
@@ -41,16 +38,6 @@ SELECT TIDB_PARSE_TSO(443852055297916932);
 1 row in set (0.00 sec)
 ```
 
-```sql
-SELECT TIDB_PARSE_TSO_LOGICAL(443852055297916932);
-+--------------------------------------------+
-| TIDB_PARSE_TSO_LOGICAL(443852055297916932) |
-+--------------------------------------------+
-|                                          4 |
-+--------------------------------------------+
-1 row in set (0.00 sec)
-```
-
 The following example shows what a TSO timestamp looks like in binary:
 
 ```shell