如何在 postgresql 中用词根替换单词？
How can I replace a word with its root in postgresql?
我想做的是
select
"wise, wisdom and wiseness have a common root" as body,
regexp_replace(body,'wis%','wise')
获得
wise --> wise
wisdom --> wise
wiseness --> wise
所以结果是
"wise, wise and wise have a common root"
select
regexp_replace('wise, wisdom and wiseness have a common root','wis[\w]*','wise','g')
- RegExp
wis[\w]* 正在搜索以 wis 开头后跟任意数量的字母和数字的所有单词。如果您只对字母感兴趣，请使用 [A-Za-z] 而不是 [\w]。
- Flag
g 使其适用于所有事件。
我想做的是
select
"wise, wisdom and wiseness have a common root" as body,
regexp_replace(body,'wis%','wise')
获得
wise --> wise
wisdom --> wise
wiseness --> wise
所以结果是 "wise, wise and wise have a common root"
select
regexp_replace('wise, wisdom and wiseness have a common root','wis[\w]*','wise','g')
- RegExp
wis[\w]*正在搜索以 wis 开头后跟任意数量的字母和数字的所有单词。如果您只对字母感兴趣，请使用[A-Za-z]而不是[\w]。 - Flag
g使其适用于所有事件。