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authorunknown <aivanov@mysql.com>2005-12-06 22:02:40 +0300
committerunknown <aivanov@mysql.com>2005-12-06 22:02:40 +0300
commitb83c29766c916c67194c56d12f0b4542402e1e85 (patch)
tree12215ce7c080a1a2ab6d1de62d6cb0dd7957a223 /sql/ha_innodb.cc
parentc9bf8e28a86c6eec53bb20d657e667c5fe1dbe88 (diff)
downloadmariadb-git-b83c29766c916c67194c56d12f0b4542402e1e85.tar.gz
Fix BUG#14747: "Race condition can cause btr_search_drop_page_hash_index()
to crash". Changes from snapshot innodb-5.0-ss52. Note that buf_block_t::index should be protected by btr_search_latch or an s-latch or x-latch on the index page. btr_search_drop_page_hash_index(): Read block->index while holding btr_search_latch and use the cached value in the loop. Remove some redundant assertions. Also fix 13778. When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between foreign key references are compatible. Also added test cases to 9802. innobase/btr/btr0sea.c: Changes from innodb-5.0-ss52 innobase/dict/dict0dict.c: Changes from innodb-5.0-ss52 innobase/dict/dict0load.c: Changes from innodb-5.0-ss52 innobase/include/buf0buf.h: Changes from innodb-5.0-ss52 innobase/include/dict0dict.h: Changes from innodb-5.0-ss52 innobase/include/dict0load.h: Changes from innodb-5.0-ss52 innobase/include/rem0cmp.h: Changes from innodb-5.0-ss52 innobase/rem/rem0cmp.c: Changes from innodb-5.0-ss52 innobase/row/row0mysql.c: Changes from innodb-5.0-ss52 mysql-test/r/innodb.result: Changes from innodb-5.0-ss52 mysql-test/t/innodb.test: Changes from innodb-5.0-ss52 sql/ha_innodb.cc: Changes from innodb-5.0-ss52 sql/ha_innodb.h: Changes from innodb-5.0-ss52
Diffstat (limited to 'sql/ha_innodb.cc')
-rw-r--r--sql/ha_innodb.cc9
1 files changed, 9 insertions, 0 deletions
diff --git a/sql/ha_innodb.cc b/sql/ha_innodb.cc
index 56e5fd8923f..6c8dc9f81f6 100644
--- a/sql/ha_innodb.cc
+++ b/sql/ha_innodb.cc
@@ -2519,6 +2519,12 @@ ha_innobase::open(
DBUG_RETURN(0);
}
+uint
+ha_innobase::max_supported_key_part_length() const
+{
+ return(DICT_MAX_INDEX_COL_LEN - 1);
+}
+
/**********************************************************************
Closes a handle to an InnoDB table. */
@@ -4675,6 +4681,9 @@ create_index(
0, prefix_len);
}
+ /* Even though we've defined max_supported_key_part_length, we
+ still do our own checking using field_lengths to be absolutely
+ sure we don't create too long indexes. */
error = row_create_index_for_mysql(index, trx, field_lengths);
error = convert_error_code_to_mysql(error, NULL);