mysql - 匹配“foo.bar”（句号/句号）

Question

我可以在/foo中使用 match来搜索行：barcol1col2

SELECT col1, col2
FROM some_table
WHERE MATCH (col1,col2)
      AGAINST ('+foo +bar' IN BOOLEAN MODE);

但是假设我想搜索确切的短语“foo.bar” （中间有句号）。在Boolean Full-Text Searches 的文档页面上，它没有提到句号是运算符，所以我想我可以使用：

AGAINST ('+foo.bar' IN BOOLEAN MODE);

但是，这将返回与以下相同的结果：

AGAINST ('+foo.couldBeAnything' IN BOOLEAN MODE);
AGAINST ('+foo' IN BOOLEAN MODE);
AGAINST ('+foo.*' IN BOOLEAN MODE); #Note you would expect this to look for instances of foo. followed by something, rather than just the same as foo

.

为什么这不像我预期的那样工作？我该如何匹配 for foo.bar？

Answer 1

我没有现成的全文表来测试这一点，但我相信这应该可行：

SELECT col1, col2
FROM some_table
WHERE MATCH (col1,col2)
    AGAINST ('+\"foo.bar\"' IN BOOLEAN MODE);

Answer 2

要完成这项工作，您需要用双引号将您的文字括起来："bar.foo"，因为该点可能等同于or运算符。