mysql - 如果其中至少一个与 MYSQL 中的正则表达式匹配，则返回 bool 值

Question

我有一个名为 fileName 的键，其值为 org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/ProposalRound.java，如果 fileName 与 %/src% 匹配，我想返回一个 bool 值。查询看起来像

SELECT p.id, p_userName,
COUNT(f.id) as NoOfFilesModified, 
sum(f.f_linesInserted) as linesInserted, 
sum(f.f_linesDeleted) as linesDeleted
FROM t_change as c, t_file as f, t_revision as r, t_people as p
WHERE f.f_revisionId = r.id 
AND r.rev_changeId = c.id
AND c.ch_authorAccountId = p.id
GROUP BY p.id, p.p_userName;

得到的结果为

id  p_userName  NoOfFilesModified   linesInserted   linesDeleted
1   spearce     2190                   50102    20117
2   HudsonVoter 397 14272   494

我想添加另一个字段，如果至少有一个文件与 %/src/% 匹配，则返回 1 或 0

提前致谢!

Answer 1

尝试使用子查询，例如

EXISTS(SELECT 1 FROM t_file WHERE f.f_revisionId = r.id AND f.filename REGEXP 'src')

或

EXISTS(SELECT 1 FROM t_file WHERE f.f_revisionId = r.id AND f.filename LIKE '%src%')