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5.2 merge

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Sergei Golubchik
2013-04-11 19:35:39 +02:00
parent 5d9e50fc95 61ed0ebe73
commit ea4a417a8d
8 changed files with 156 additions and 88 deletions
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25
include/mysql_com.h
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@@ -31,6 +31,31 @@
#define MYSQL50_TABLE_NAME_PREFIX_LENGTH (sizeof(MYSQL50_TABLE_NAME_PREFIX)-1)
#define SAFE_NAME_LEN (NAME_LEN + MYSQL50_TABLE_NAME_PREFIX_LENGTH)
/*
MDEV-4088
MySQL (and MariaDB 5.x before the fix) was using the first character of the
server version string (as sent in the first handshake protocol packet) to
decide on the replication event formats. And for 10.x the first character
is "1", which the slave thought comes from some ancient 1.x version
(ignoring the fact that the first ever MySQL version was 3.x).
To support replication to these old clients, we fake the version in the
first handshake protocol packet to start from "5.5.5-" (for example,
it might be "5.5.5-10.0.1-MariaDB-debug-log".
On the client side we remove this fake version prefix to restore the
correct server version. The version "5.5.5" did not support
pluggable authentication, so any version starting from "5.5.5-" and
claiming to support pluggable auth, must be using this fake prefix.
*/
#ifdef EMBEDDED_LIBRARY
#define RPL_VERSION_HACK ""
#else
/* this version must be the one that *does not* support pluggable auth */
#define RPL_VERSION_HACK "5.5.5-"
#endif
#define SERVER_VERSION_LENGTH 60
#define SQLSTATE_LENGTH 5
#define LIST_PROCESS_HOST_LEN 64