Automerge MariaDB 5.1.47 release into main.

1 files changed, 8 insertions, 0 deletions

diff --git a/mysys/charset.c b/mysys/charset.c
index dd27cb45a5f..8d2f68b7bbf 100644
--- a/mysys/charset.c
+++ b/mysys/charset.c
@@ -245,6 +245,8 @@ static int add_collation(CHARSET_INFO *cs)
       if (cs_copy_data(all_charsets[cs->number],cs))
         return MY_XML_ERROR;
 
+      newcs->caseup_multiply= newcs->casedn_multiply= 1;
+
       if (!strcmp(cs->csname,"ucs2") )
       {
 #if defined(HAVE_CHARSET_ucs2) && defined(HAVE_UCA_COLLATIONS)
@@ -403,6 +405,7 @@ static void *cs_alloc(size_t size)
 
 
 static my_pthread_once_t charsets_initialized= MY_PTHREAD_ONCE_INIT;
+static my_pthread_once_t charsets_template= MY_PTHREAD_ONCE_INIT;
 
 static void init_available_charsets(void)
 {
@@ -430,6 +433,11 @@ static void init_available_charsets(void)
 }
 
 
+void free_charsets(void)
+{
+  charsets_initialized= charsets_template;
+}
+
 uint get_collation_number(const char *name)
 {
   my_pthread_once(&charsets_initialized, init_available_charsets);