From d0fbe53b7a02c786a7e4828c568b5b46281fb738 Mon Sep 17 00:00:00 2001
From: Ran <huangran.alex@gmail.com>
Date: Thu, 2 Nov 2023 15:04:38 +0800
Subject: [PATCH 1/3] Add temp.md

---
 temp.md | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 temp.md

diff --git a/temp.md b/temp.md
new file mode 100644
index 0000000000000..af27ff4986a7b
--- /dev/null
+++ b/temp.md
@@ -0,0 +1 @@
+This is a test file.
\ No newline at end of file

From 88fb314b6eeb420d839e6d49d32192adfc5b7433 Mon Sep 17 00:00:00 2001
From: Ran <huangran.alex@gmail.com>
Date: Thu, 2 Nov 2023 15:04:42 +0800
Subject: [PATCH 2/3] Delete temp.md

---
 temp.md | 1 -
 1 file changed, 1 deletion(-)
 delete mode 100644 temp.md

diff --git a/temp.md b/temp.md
deleted file mode 100644
index af27ff4986a7b..0000000000000
--- a/temp.md
+++ /dev/null
@@ -1 +0,0 @@
-This is a test file.
\ No newline at end of file

From 5b3cf0217265f3b22e5d62a5f2ca67a872d60613 Mon Sep 17 00:00:00 2001
From: Ran <huangran.alex@gmail.com>
Date: Thu, 2 Nov 2023 16:03:34 +0800
Subject: [PATCH 3/3] add translation

---
 ticdc/ticdc-changefeed-config.md |  4 ++++
 ticdc/ticdc-ddl.md               | 23 +++++++++++++++++++++++
 2 files changed, 27 insertions(+)

diff --git a/ticdc/ticdc-changefeed-config.md b/ticdc/ticdc-changefeed-config.md
index 19bf4ff648edb..119cb574c2b7e 100644
--- a/ticdc/ticdc-changefeed-config.md
+++ b/ticdc/ticdc-changefeed-config.md
@@ -64,6 +64,10 @@ case-sensitive = true
 # Note: This configuration item only takes effect if the downstream is TiDB.
 # sync-point-retention = "1h"
 
+# Specifies the SQL mode used when parsing DDL statements. Multiple modes are separated by commas.
+# The default value is the same as the default SQL mode of TiDB.
+# sql-mode = "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION"
+
 [mounter]
 # The number of threads with which the mounter decodes KV data. The default value is 16.
 # worker-num = 16
diff --git a/ticdc/ticdc-ddl.md b/ticdc/ticdc-ddl.md
index 91be173ead44d..1d05faf4d2c58 100644
--- a/ticdc/ticdc-ddl.md
+++ b/ticdc/ticdc-ddl.md
@@ -101,3 +101,26 @@ TiCDC processes this type of DDL as follows:
 | `RENAME TABLE test.t1 TO test.ignore1, test.t3 TO test.ignore2` | Replicate | The old database name, the old table names, and the new database name match the filter rule. |
 | `RENAME TABLE test.t1 TO ignore.t1, test.t2 TO test.t22;` | Report an error | The new database name `ignore` does not match the filter rule. |
 | `RENAME TABLE test.t1 TO test.t4, test.t3 TO test.t1, test.t4 TO test.t3;` | Report an error | The `RENAME TABLE` DDL swaps the names of `test.t1` and `test.t3` in one DDL statement, which TiCDC cannot handle correctly. In this case, refer to the error message for handling. |
+
+### SQL mode
+
+By default, TiCDC uses the default SQL mode of TiDB to parse DDL statements. If your upstream TiDB cluster uses a non-default SQL mode, you must specify the SQL mode in the TiCDC configuration file. Otherwise, TiCDC might fail to parse DDL statements correctly. For more information about TiDB SQL mode, see [SQL Mode](/sql-mode.md).
+
+For example, if the upstream TiDB cluster uses the `ANSI_QUOTES` mode, you must specify the SQL mode in the changefeed configuration file as follows:
+
+```toml
+# In the value, "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION" is the default SQL mode of TiDB.
+# "ANSI_QUOTES" is the SQL mode added to your upstream TiDB cluster.
+
+sql-mode = "ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,ANSI_QUOTES"
+```
+
+If the SQL mode is not configured, TiCDC might fail to parse some DDL statements correctly. For example:
+
+```sql
+CREATE TABLE "t1" ("a" int PRIMARY KEY);
+```
+
+Because in the default SQL mode of TiDB, double quotation marks are treated as strings rather than identifiers, TiCDC fails to parse the DDL statement correctly.
+
+Therefore, when creating a replication task, it is recommended that you specify the SQL mode used by the upstream TiDB cluster in the configuration file.