From 9773bb25f961083c89d9911724ed404eda8ad558 Mon Sep 17 00:00:00 2001 From: shenglian-zhou Date: Fri, 4 Aug 2023 09:55:08 +0800 Subject: [PATCH 1/2] Update 06-select.md --- docs/zh/12-taos-sql/06-select.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/zh/12-taos-sql/06-select.md b/docs/zh/12-taos-sql/06-select.md index 5bc67755f0..9560c3c4df 100644 --- a/docs/zh/12-taos-sql/06-select.md +++ b/docs/zh/12-taos-sql/06-select.md @@ -315,7 +315,7 @@ WHERE (column|tbname) match/MATCH/nmatch/NMATCH _regex_ ### 使用限制 -只能针对表名（即 tbname 筛选）、binary/nchar 类型标签值进行正则表达式过滤，不支持普通列的过滤。 +只能针对表名（即 tbname 筛选）、binary/nchar 类型值进行正则表达式过滤。 正则匹配字符串长度不能超过 128 字节。可以通过参数 _maxRegexStringLen_ 设置和调整最大允许的正则匹配字符串，该参数是客户端配置参数，需要重启才能生效。 From f3133f4c909382c97cd267d5f9a60dc9997d0241 Mon Sep 17 00:00:00 2001 From: slzhou Date: Fri, 4 Aug 2023 10:01:11 +0800 Subject: [PATCH 2/2] fix: modify english version --- docs/en/12-taos-sql/16-operators.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/en/12-taos-sql/16-operators.md b/docs/en/12-taos-sql/16-operators.md index 9328d1688a..6b7adb4a3d 100644 --- a/docs/en/12-taos-sql/16-operators.md +++ b/docs/en/12-taos-sql/16-operators.md @@ -54,7 +54,7 @@ LIKE is used together with wildcards to match strings. Its usage is described as MATCH and NMATCH are used together with regular expressions to match strings. Their usage is described as follows: - Use POSIX regular expression syntax. For more information, see Regular Expressions. -- Regular expression can be used against only table names, i.e. `tbname`, and tags of binary/nchar types, but can't be used against data columns. +- Regular expression can be used against only table names, i.e. `tbname`, and tags/columns of binary/nchar types. - The maximum length of regular expression string is 128 bytes. Configuration parameter `maxRegexStringLen` can be used to set the maximum allowed regular expression. It's a configuration parameter on the client side, and will take effect after restarting the client. ## Logical Operators