From 4c012862ce2c78a50486529b2fcc3e7a3893c6b4 Mon Sep 17 00:00:00 2001 From: wangmm0220 Date: Mon, 10 Jan 2022 19:28:40 +0800 Subject: [PATCH] [TD-12252](connector,query,insert,other,tools,taosAdapter):deal with escape character --- documentation20/cn/12.taos-sql/docs.md | 12 ++++++------ documentation20/en/12.taos-sql/docs.md | 12 ++++++------ 2 files changed, 12 insertions(+), 12 deletions(-) diff --git a/documentation20/cn/12.taos-sql/docs.md b/documentation20/cn/12.taos-sql/docs.md index a626b0f293..71f873c6a1 100755 --- a/documentation20/cn/12.taos-sql/docs.md +++ b/documentation20/cn/12.taos-sql/docs.md @@ -1858,14 +1858,14 @@ TDengine 中的表（列）名命名规则如下： | 字符序列 | **代表的字符** | | :--------: | ------- | - | \' | 单引号' | - | \" | 双引号" | + | `\'` | 单引号' | + | `\"` | 双引号" | | \n | 换行符 | | \r | 回车符 | | \t | tab符 | - | \\ | 斜杠\ | - | \% | % 规则见下 | - | \_ | _ 规则见下 | + | `\\` | 斜杠\ | + | `\%` | % 规则见下 | + | `\_` | _ 规则见下 | - 转义字符使用规则 1. 标识符里有转义字符（数据库名、表名、列名） @@ -1873,4 +1873,4 @@ TDengine 中的表（列）名命名规则如下： 2. 反引号``标识符： 保持原样，不转义 2. 数据里有转义字符 1. 遇到上面定义的转义字符会转义（%和_见下面说明），如果没有匹配的转义字符会忽略掉转义符\。 - 2. 对于%和_，因为在like里这两个字符是通配符，所以在模式匹配like里用\%和\_表示字符里本身的%和_，如果在like模式匹配上下文之外使用\%或\_，则它们的计算结果为字符串\%和\_，而不是%和_。 \ No newline at end of file + 2. 对于%和_，因为在like里这两个字符是通配符，所以在模式匹配like里用`\%`和`\_`表示字符里本身的%和_，如果在like模式匹配上下文之外使用`\%`或`\_`，则它们的计算结果为字符串`\%`和`\_`，而不是%和_。 \ No newline at end of file diff --git a/documentation20/en/12.taos-sql/docs.md b/documentation20/en/12.taos-sql/docs.md index 052a46043b..17af500c7a 100755 --- a/documentation20/en/12.taos-sql/docs.md +++ b/documentation20/en/12.taos-sql/docs.md @@ -1340,14 +1340,14 @@ Is not null supports all types of columns. Non-null expression is < > "" and onl | Escape Sequence | **Character Represented by Sequence** | | :--------: | ------------------- | - | \\' | A single quote (') character | - | \\" | A double quote (") character | + | `\'` | A single quote (') character | + | `\"` | A double quote (") character | | \n | A newline (linefeed) character | | \r | A carriage return character | | \t | A tab character | - | \\\ | A backslash (\) character | - | \\% | A % character; see note following the table | - | \\_ | A _ character; see note following the table | + | `\\` | A backslash (\) character | + | `\%` | A % character; see note following the table | + | `\_` | A _ character; see note following the table | - Escape character usage rules - The escape characters that in a identifier (database name, table name, column name) @@ -1355,4 +1355,4 @@ Is not null supports all types of columns. Non-null expression is < > "" and onl 2. Backquote`` identifier： Keep it as it is. - The escape characters that in a data 3. The escape character defined above will be escaped (% and _ see the description below). If there is no matching escape character, the escape character will be ignored. - 4. The \% and \_ sequences are used to search for literal instances of % and _ in pattern-matching contexts where they would otherwise be interpreted as wildcard characters.If you use \% or \_ outside of pattern-matching contexts, they evaluate to the strings \% and \_, not to % and _. \ No newline at end of file + 4. The `\%` and `\_` sequences are used to search for literal instances of % and _ in pattern-matching contexts where they would otherwise be interpreted as wildcard characters.If you use `\%` or `\_` outside of pattern-matching contexts, they evaluate to the strings `\%` and `\_`, not to % and _. \ No newline at end of file -- GitLab