From c771a6934c25bd9e62024d36d468f8c82b094b6d Mon Sep 17 00:00:00 2001
From: houfaxin <hfxsd@hotmail.com>
Date: Mon, 14 Apr 2025 09:13:58 +0800
Subject: [PATCH] initial trans

---
 sql-statements/sql-statement-add-column.md    | 9 ++++++++-
 sql-statements/sql-statement-change-column.md | 9 ++++++++-
 sql-statements/sql-statement-create-table.md  | 1 +
 sql-statements/sql-statement-modify-column.md | 9 ++++++++-
 4 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/sql-statements/sql-statement-add-column.md b/sql-statements/sql-statement-add-column.md
index 815d9f53a3cf..04c96419696b 100644
--- a/sql-statements/sql-statement-add-column.md
+++ b/sql-statements/sql-statement-add-column.md
@@ -31,7 +31,7 @@ ColumnOption
            | 'AUTO_INCREMENT'
            | 'PRIMARY'? 'KEY' ( 'CLUSTERED' | 'NONCLUSTERED' )? ( 'GLOBAL' | 'LOCAL' )?
            | 'UNIQUE' 'KEY'? ( 'GLOBAL' | 'LOCAL' )?
-           | 'DEFAULT' ( NowSymOptionFraction | SignedLiteral | NextValueForSequence )
+           | 'DEFAULT' DefaultValueExpr
            | 'SERIAL' 'DEFAULT' 'VALUE'
            | 'ON' 'UPDATE' NowSymOptionFraction
            | 'COMMENT' stringLit
@@ -42,6 +42,13 @@ ColumnOption
            | 'COLUMN_FORMAT' ColumnFormat
            | 'STORAGE' StorageMedia
            | 'AUTO_RANDOM' ( '(' LengthNum ')' )?
+
+DefaultValueExpr ::=
+    NowSymOptionFractionParentheses
+|   SignedLiteral
+|   NextValueForSequenceParentheses
+|   BuiltinFunction
+|   '(' SignedLiteral ')'
 ```
 
 ## 示例
diff --git a/sql-statements/sql-statement-change-column.md b/sql-statements/sql-statement-change-column.md
index 12d93928bd9f..192064cc1a67 100644
--- a/sql-statements/sql-statement-change-column.md
+++ b/sql-statements/sql-statement-change-column.md
@@ -34,7 +34,7 @@ ColumnOption
            | 'AUTO_INCREMENT'
            | 'PRIMARY'? 'KEY' ( 'CLUSTERED' | 'NONCLUSTERED' )?
            | 'UNIQUE' 'KEY'?
-           | 'DEFAULT' ( NowSymOptionFraction | SignedLiteral | NextValueForSequence )
+           | 'DEFAULT' DefaultValueExpr
            | 'SERIAL' 'DEFAULT' 'VALUE'
            | 'ON' 'UPDATE' NowSymOptionFraction
            | 'COMMENT' stringLit
@@ -48,6 +48,13 @@ ColumnOption
 
 ColumnName ::=
     Identifier ( '.' Identifier ( '.' Identifier )? )?
+
+DefaultValueExpr ::=
+    NowSymOptionFractionParentheses
+|   SignedLiteral
+|   NextValueForSequenceParentheses
+|   BuiltinFunction
+|   '(' SignedLiteral ')'
 ```
 
 ## 示例
diff --git a/sql-statements/sql-statement-create-table.md b/sql-statements/sql-statement-create-table.md
index a8fd31f9e92b..a654ff0ca294 100644
--- a/sql-statements/sql-statement-create-table.md
+++ b/sql-statements/sql-statement-create-table.md
@@ -132,6 +132,7 @@ DefaultValueExpr ::=
 |   SignedLiteral
 |   NextValueForSequenceParentheses
 |   BuiltinFunction
+|   '(' SignedLiteral ')'
 
 BuiltinFunction ::=
     '(' BuiltinFunction ')'
diff --git a/sql-statements/sql-statement-modify-column.md b/sql-statements/sql-statement-modify-column.md
index 1ee3e64654cf..61f81adc309e 100644
--- a/sql-statements/sql-statement-modify-column.md
+++ b/sql-statements/sql-statement-modify-column.md
@@ -34,7 +34,7 @@ ColumnOption
            | 'AUTO_INCREMENT'
            | 'PRIMARY'? 'KEY' ( 'CLUSTERED' | 'NONCLUSTERED' )?
            | 'UNIQUE' 'KEY'?
-           | 'DEFAULT' ( NowSymOptionFraction | SignedLiteral | NextValueForSequence )
+           | 'DEFAULT' DefaultValueExpr
            | 'SERIAL' 'DEFAULT' 'VALUE'
            | 'ON' 'UPDATE' NowSymOptionFraction
            | 'COMMENT' stringLit
@@ -48,6 +48,13 @@ ColumnOption
 
 ColumnName ::=
     Identifier ( '.' Identifier ( '.' Identifier )? )?
+
+DefaultValueExpr ::=
+    NowSymOptionFractionParentheses
+|   SignedLiteral
+|   NextValueForSequenceParentheses
+|   BuiltinFunction
+|   '(' SignedLiteral ')'
 ```
 
 ## 示例