diff options
Diffstat (limited to 'src/backend/regex/regcomp.c')
| -rw-r--r-- | src/backend/regex/regcomp.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/backend/regex/regcomp.c b/src/backend/regex/regcomp.c index eb1f3d57a86..8cd7d56b226 100644 --- a/src/backend/regex/regcomp.c +++ b/src/backend/regex/regcomp.c @@ -1155,7 +1155,10 @@ parseqatom(struct vars *v, /* rest of branch can be strung starting from atom->end */ s2 = atom->end; } - else if (m == 1 && n == 1) + else if (m == 1 && n == 1 && + (qprefer == 0 || + (atom->flags & (LONGER | SHORTER | MIXED)) == 0 || + qprefer == (atom->flags & (LONGER | SHORTER | MIXED)))) { /* no/vacuous quantifier: done */ EMPTYARC(s, atom->begin); /* empty prefix */ |