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Add TiCDC TSO acquisition in sync-diff-inspector doc (#10904) #10927

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ti-chi-bot merged 1 commit into from
Oct 20, 2022
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Add TiCDC TSO acquisition in sync-diff-inspector doc (#10904) #10927

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4 changes: 2 additions & 2 deletions sync-diff-inspector/upstream-downstream-diff.md
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Expand Up @@ -26,14 +26,14 @@ sync-point-retention = "1h"

## Step 1: obtain `ts-map`

To obtain `ts-map`, execute the following SQL statement in the downstream TiDB cluster:
You can execute the following SQL statement in the downstream TiDB cluster to obtain the upstream TSO (`primary_ts`) and downstream TSO (`secondary_ts`):

```sql
select * from tidb_cdc.syncpoint_v1;
+------------------+----------------+--------------------+--------------------+---------------------+
| ticdc_cluster_id | changefeed | primary_ts | secondary_ts | created_at |
+------------------+----------------+--------------------+--------------------+---------------------+
| default | default_test-2 | 435953225454059520 | 435953235516456963 | 2022-09-13 08:40:15 |
| default | test-2 | 435953225454059520 | 435953235516456963 | 2022-09-13 08:40:15 |
+------------------+----------------+--------------------+--------------------+---------------------+
```

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