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Main patch MDEV-27896 Wrong result upon COLLATE latin1_bin CHARACTER SET latin1 on the table or the database level

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Also fixes
MDEV-27782 Wrong columns when using table level `CHARACTER SET utf8mb4 COLLATE DEFAULT`
MDEV-28644 Unexpected error on ALTER TABLE t1 CONVERT TO CHARACTER SET utf8mb3, DEFAULT CHARACTER SET utf8mb4
This commit is contained in:
Alexander Barkov
2022-05-17 12:52:23 +04:00
parent 89adedcb9f
commit 208addf484
25 changed files with 3255 additions and 206 deletions
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25
sql/sql_class.cc
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@@ -56,6 +56,7 @@
#include "sp_rcontext.h"
#include "sp_cache.h"
#include "sql_show.h" // append_identifier
#include "sql_db.h" // get_default_db_collation
#include "transaction.h"
#include "sql_select.h" /* declares create_tmp_table() */
#include "debug_sync.h"
@@ -8296,3 +8297,27 @@ THD_list_iterator *THD_list_iterator::iterator()
{
return &server_threads;
}
Charset_collation_context
THD::charset_collation_context_alter_db(const char *db)
{
return Charset_collation_context(variables.collation_server,
get_default_db_collation(this, db));
}
Charset_collation_context
THD::charset_collation_context_create_table_in_db(const char *db)
{
CHARSET_INFO *cs= get_default_db_collation(this, db);
return Charset_collation_context(cs, cs);
}
Charset_collation_context
THD::charset_collation_context_alter_table(const TABLE_SHARE *s)
{
return Charset_collation_context(get_default_db_collation(this, s->db.str),
s->table_charset);
}