diff --git a/mysql-test/r/ctype_utf8.result b/mysql-test/r/ctype_utf8.result index 748361d3178..9f2d7eac700 100644 --- a/mysql-test/r/ctype_utf8.result +++ b/mysql-test/r/ctype_utf8.result @@ -955,6 +955,10 @@ char_length(a) length(a) a 2 4 ан drop table t1; set names utf8; +select 'andre%' like 'andreñ%' escape 'ñ'; +'andre%' like 'andreñ%' escape 'ñ' +1 +set names utf8; select 'a\\' like 'a\\'; 'a\\' like 'a\\' 1 diff --git a/mysql-test/t/ctype_utf8.test b/mysql-test/t/ctype_utf8.test index e6342777839..0cdda648899 100644 --- a/mysql-test/t/ctype_utf8.test +++ b/mysql-test/t/ctype_utf8.test @@ -810,6 +810,12 @@ alter table t1 modify a char(2) character set utf8; select char_length(a), length(a), a from t1 order by a; drop table t1; +# +# Bugs#12611 +# ESCAPE + LIKE do not work when the escape char is a multibyte one +# +set names utf8; +select 'andre%' like 'andreñ%' escape 'ñ'; # # Bugs#11754: SET NAMES utf8 followed by SELECT "A\\" LIKE "A\\" returns 0 diff --git a/sql/item_cmpfunc.cc b/sql/item_cmpfunc.cc index 9146b3c3b9e..c869e7f5c65 100644 --- a/sql/item_cmpfunc.cc +++ b/sql/item_cmpfunc.cc @@ -2293,7 +2293,25 @@ bool Item_func_like::fix_fields(THD *thd, TABLE_LIST *tlist, Item ** ref) { /* If we are on execution stage */ String *escape_str= escape_item->val_str(&tmp_value1); - escape= escape_str ? *(escape_str->ptr()) : '\\'; + if (escape_str) + { + CHARSET_INFO *cs= cmp.cmp_collation.collation; + if (use_mb(cs)) + { + my_wc_t wc; + int rc= cs->cset->mb_wc(cs, &wc, + (const uchar*) escape_str->ptr(), + (const uchar*) escape_str->ptr() + + escape_str->length()); + escape= (int) (rc > 0 ? wc : '\\'); + } + else + { + escape= *(escape_str->ptr()); + } + } + else + escape= '\\'; /* We could also do boyer-more for non-const items, but as we would have to