Merge mysql.com:/home/mydev/mysql-5.0

into  mysql.com:/home/mydev/mysql-5.0-bug10932


configure.in:
  Auto merged
sql/mysql_priv.h:
  Auto merged
sql/unireg.h:
  Auto merged

config/ac-macros/misc.m4

@@ -693,6 +693,27 @@ dnl ---------------------------------------------------------------------------
 dnl END OF MYSQL_CHECK_BIG_TABLES SECTION
 dnl ---------------------------------------------------------------------------
 
+
+dnl ---------------------------------------------------------------------------
+dnl Macro: MYSQL_CHECK_MAX_INDEXES
+dnl Sets MAX_INDEXES
+dnl ---------------------------------------------------------------------------
+AC_DEFUN([MYSQL_CHECK_MAX_INDEXES], [
+  AC_ARG_WITH([max-indexes],
+              [
+  --with-max-indexes=\#      Sets the maximum number of indexes per table, default 64],
+              [max_indexes="$withval"],
+              [max_indexes=64])
+  AC_MSG_CHECKING([max indexes per table])
+  AC_DEFINE_UNQUOTED([MAX_INDEXES], [$max_indexes],
+                     [Maximum number of indexes per table])
+  AC_MSG_RESULT([$max_indexes])
+])
+dnl ---------------------------------------------------------------------------
+dnl END OF MYSQL_CHECK_MAX_INDEXES SECTION
+dnl ---------------------------------------------------------------------------
+
+
 dnl MYSQL_NEEDS_MYSYS_NEW
 AC_DEFUN([MYSQL_NEEDS_MYSYS_NEW],
 [AC_CACHE_CHECK([needs mysys_new helpers], mysql_use_mysys_new,

configure.in

@@ -2413,6 +2413,7 @@ AC_SUBST(readline_link)
 AC_SUBST(readline_h_ln_cmd)
 
 MYSQL_CHECK_BIG_TABLES
+MYSQL_CHECK_MAX_INDEXES
 MYSQL_CHECK_BDB
 MYSQL_CHECK_INNODB
 MYSQL_CHECK_EXAMPLEDB

include/myisam.h

@@ -33,8 +33,6 @@ extern "C" {
 #endif
 #include "my_handler.h"
 
-	/* defines used by myisam-funktions */
-
 /*
   There is a hard limit for the maximum number of keys as there are only
   8 bits in the index file header for the number of keys in a table.
@@ -45,14 +43,19 @@ extern "C" {
   running myisamchk compiled for 128 keys on a table with 255 keys.
 */
 #define MI_MAX_POSSIBLE_KEY         255             /* For myisam_chk */
+#if MAX_INDEXES > MI_MAX_POSSIBLE_KEY
+#define MI_MAX_KEY                  MI_MAX_POSSIBLE_KEY /* Max allowed keys */
+#else
+#define MI_MAX_KEY                  MAX_INDEXES         /* Max allowed keys */
+#endif
+
 #define MI_MAX_POSSIBLE_KEY_BUFF    (1024+6+6)      /* For myisam_chk */
 /*
   The following defines can be increased if necessary.
-  BUT: MI_MAX_KEY must be <= MI_MAX_POSSIBLE_KEY.
+  But beware the dependency of MI_MAX_POSSIBLE_KEY_BUFF and MI_MAX_KEY_LENGTH.
 */
-#define MI_MAX_KEY                  64              /* Max allowed keys */
+#define MI_MAX_KEY_LENGTH           1000            /* Max length in bytes */
 #define MI_MAX_KEY_SEG              16              /* Max segments for key */
-#define MI_MAX_KEY_LENGTH           1000
 
 #define MI_MAX_KEY_BUFF  (MI_MAX_KEY_LENGTH+MI_MAX_KEY_SEG*6+8+8)
 #define MI_MAX_MSG_BUF      1024 /* used in CHECK TABLE, REPAIR TABLE */

sql/mysql_priv.h

@@ -42,7 +42,11 @@
 
 /* TODO convert all these three maps to Bitmap classes */
 typedef ulonglong table_map;          /* Used for table bits in join */
+#if MAX_INDEXES <= 64
 typedef Bitmap<64>  key_map;          /* Used for finding keys */
+#else
+typedef Bitmap<((MAX_INDEXES+7)/8*8)> key_map; /* Used for finding keys */
+#endif
 typedef ulong key_part_map;           /* Used for finding key parts */
 /*
   Used to identify NESTED_JOIN structures within a join (applicable only to

sql/opt_range.cc

@@ -3172,6 +3172,7 @@ TRP_ROR_INTERSECT *get_best_covering_ror_intersect(PARAM *param,
   trp->is_covering= TRUE;
   trp->read_cost= total_cost;
   trp->records= records;
+  trp->cpk_scan= NULL;
 
   DBUG_PRINT("info",
              ("Returning covering ROR-intersect plan: cost %g, records %lu",

sql/unireg.h

@@ -48,7 +48,7 @@
 #define MAX_ALIAS_NAME 256
 #define MAX_FIELD_NAME 34			/* Max colum name length +2 */
 #define MAX_SYS_VAR_LENGTH 32
-#define MAX_KEY 64				/* Max used keys */
+#define MAX_KEY MAX_INDEXES                     /* Max used keys */
 #define MAX_REF_PARTS 16			/* Max parts used as ref */
 #define MAX_KEY_LENGTH 3072			/* max possible key */
 #if SIZEOF_OFF_T > 4

tests/mysql_client_test.c

@@ -36,7 +36,7 @@
 
 #define VER "2.1"
 #define MAX_TEST_QUERY_LENGTH 300 /* MAX QUERY BUFFER LENGTH */
-#define MAX_KEY 64
+#define MAX_KEY MAX_INDEXES
 #define MAX_SERVER_ARGS 64
 
 /* set default options */