merge.

checkpoint.
does not compile.

1 files changed, 381 insertions, 427 deletions

diff --git a/storage/myisam/myisamdef.h b/storage/myisam/myisamdef.h
index c7f0cb27a40..304150601d7 100644
--- a/storage/myisam/myisamdef.h
+++ b/storage/myisam/myisamdef.h
@@ -15,8 +15,8 @@
 
 /* This file is included by all internal myisam files */
 
-#include "myisam.h"			/* Structs & some defines */
-#include "myisampack.h"			/* packing of keys */
+#include "myisam.h"                     /* Structs & some defines */
+#include "myisampack.h"                 /* packing of keys */
 #include <my_tree.h>
 #ifdef THREAD
 #include <my_pthread.h>
@@ -33,10 +33,10 @@
 
 typedef struct st_mi_status_info
 {
-  ha_rows records;			/* Rows in table */
-  ha_rows del;				/* Removed rows */
-  my_off_t empty;			/* lost space in datafile */
-  my_off_t key_empty;			/* lost space in indexfile */
+  ha_rows records;                      /* Rows in table */
+  ha_rows del;                          /* Removed rows */
+  my_off_t empty;                       /* lost space in datafile */
+  my_off_t key_empty;                   /* lost space in indexfile */
   my_off_t key_file_length;
   my_off_t data_file_length;
   ha_checksum checksum;
@@ -45,116 +45,119 @@ typedef struct st_mi_status_info
 
 typedef struct st_mi_state_info
 {
-  struct {				/* Fileheader */
+  struct
+  {                                     /* Fileheader */
     uchar file_version[4];
     uchar options[2];
     uchar header_length[2];
     uchar state_info_length[2];
     uchar base_info_length[2];
     uchar base_pos[2];
-    uchar key_parts[2];			/* Key parts */
-    uchar unique_key_parts[2];		/* Key parts + unique parts */
-    uchar keys;				/* number of keys in file */
-    uchar uniques;			/* number of UNIQUE definitions */
-    uchar language;			/* Language for indexes */
-    uchar max_block_size_index;		/* max keyblock size */
+    uchar key_parts[2];                 /* Key parts */
+    uchar unique_key_parts[2];          /* Key parts + unique parts */
+    uchar keys;                         /* number of keys in file */
+    uchar uniques;                      /* number of UNIQUE definitions */
+    uchar language;                     /* Language for indexes */
+    uchar max_block_size_index;         /* max keyblock size */
     uchar fulltext_keys;
     uchar not_used;                     /* To align to 8 */
   } header;
 
   MI_STATUS_INFO state;
-  ha_rows split;			/* number of split blocks */
-  my_off_t dellink;			/* Link to next removed block */
+  ha_rows split;                        /* number of split blocks */
+  my_off_t dellink;                     /* Link to next removed block */
   ulonglong auto_increment;
-  ulong process;			/* process that updated table last */
-  ulong unique;				/* Unique number for this process */
-  ulong update_count;			/* Updated for each write lock */
+  ulong process;                        /* process that updated table last */
+  ulong unique;                         /* Unique number for this process */
+  ulong update_count;                   /* Updated for each write lock */
   ulong status;
   ulong *rec_per_key_part;
-  my_off_t *key_root;			/* Start of key trees */
-  my_off_t *key_del;			/* delete links for trees */
-  my_off_t rec_per_key_rows;		/* Rows when calculating rec_per_key */
-
-  ulong sec_index_changed;		/* Updated when new sec_index */
-  ulong sec_index_used;			/* which extra index are in use */
-  ulonglong key_map;			/* Which keys are in use */
   ha_checksum checksum;                 /* Table checksum */
-  ulong version;			/* timestamp of create */
-  time_t create_time;			/* Time when created database */
-  time_t recover_time;			/* Time for last recover */
-  time_t check_time;			/* Time for last check */
-  uint	sortkey;			/* sorted by this key  (not used) */
+  my_off_t *key_root;                   /* Start of key trees */
+  my_off_t *key_del;                    /* delete links for trees */
+  my_off_t rec_per_key_rows;            /* Rows when calculating rec_per_key */
+
+  ulong sec_index_changed;              /* Updated when new sec_index */
+  ulong sec_index_used;                 /* which extra index are in use */
+  ulonglong key_map;                    /* Which keys are in use */
+  ulong version;                        /* timestamp of create */
+  time_t create_time;                   /* Time when created database */
+  time_t recover_time;                  /* Time for last recover */
+  time_t check_time;                    /* Time for last check */
+  uint sortkey;                         /* sorted by this key (not used) */
   uint open_count;
-  uint8 changed;			/* Changed since myisamchk */
+  uint8 changed;                        /* Changed since myisamchk */
 
   /* the following isn't saved on disk */
-  uint state_diff_length;		/* Should be 0 */
-  uint	state_length;			/* Length of state header in file */
+  uint state_diff_length;               /* Should be 0 */
+  uint state_length;                    /* Length of state header in file */
   ulong *key_info;
 } MI_STATE_INFO;
 
-#define MI_STATE_INFO_SIZE	(24+14*8+7*4+2*2+8)
-#define MI_STATE_KEY_SIZE	8
+#define MI_STATE_INFO_SIZE      (24+14*8+7*4+2*2+8)
+#define MI_STATE_KEY_SIZE       8
 #define MI_STATE_KEYBLOCK_SIZE  8
-#define MI_STATE_KEYSEG_SIZE	4
-#define MI_STATE_EXTRA_SIZE ((MI_MAX_KEY+MI_MAX_KEY_BLOCK_SIZE)*MI_STATE_KEY_SIZE + MI_MAX_KEY*MI_MAX_KEY_SEG*MI_STATE_KEYSEG_SIZE)
-#define MI_KEYDEF_SIZE		(2+ 5*2)
-#define MI_UNIQUEDEF_SIZE	(2+1+1)
-#define HA_KEYSEG_SIZE		(6+ 2*2 + 4*2)
-#define MI_COLUMNDEF_SIZE	(2*3+1)
-#define MI_BASE_INFO_SIZE	(5*8 + 8*4 + 4 + 4*2 + 16)
-#define MI_INDEX_BLOCK_MARGIN	16	/* Safety margin for .MYI tables */
+#define MI_STATE_KEYSEG_SIZE    4
+#define MI_STATE_EXTRA_SIZE ((MI_MAX_KEY+MI_MAX_KEY_BLOCK_SIZE)*MI_STATE_KEY_SIZE + MI_MAX_KEY*HA_MAX_KEY_SEG*MI_STATE_KEYSEG_SIZE)
+#define MI_KEYDEF_SIZE          (2+ 5*2)
+#define MI_UNIQUEDEF_SIZE       (2+1+1)
+#define HA_KEYSEG_SIZE          (6+ 2*2 + 4*2)
+#define MI_COLUMNDEF_SIZE       (2*3+1)
+#define MI_BASE_INFO_SIZE       (5*8 + 8*4 + 4 + 4*2 + 16)
+#define MI_INDEX_BLOCK_MARGIN   16      /* Safety margin for .MYI tables */
 
 typedef struct st_mi_base_info
 {
-  my_off_t keystart;			/* Start of keys */
+  my_off_t keystart;                    /* Start of keys */
   my_off_t max_data_file_length;
   my_off_t max_key_file_length;
   my_off_t margin_key_file_length;
-  ha_rows records,reloc;		/* Create information */
-  ulong mean_row_length;		/* Create information */
-  ulong reclength;			/* length of unpacked record */
-  ulong pack_reclength;			/* Length of full packed rec. */
+  ha_rows records, reloc;               /* Create information */
+  ulong mean_row_length;                /* Create information */
+  ulong reclength;                      /* length of unpacked record */
+  ulong pack_reclength;                 /* Length of full packed rec. */
   ulong min_pack_length;
-  ulong max_pack_length;		/* Max possibly length of packed rec.*/
+  ulong max_pack_length;                /* Max possibly length of packed rec.*/
   ulong min_block_length;
-  ulong fields,				/* fields in table */
-       pack_fields;			/* packed fields in table */
-  uint rec_reflength;			/* = 2-8 */
-  uint key_reflength;			/* = 2-8 */
-  uint keys;				/* same as in state.header */
-  uint auto_key;			/* Which key-1 is a auto key */
-  uint blobs;				/* Number of blobs */
-  uint pack_bits;			/* Length of packed bits */
-  uint max_key_block_length;		/* Max block length */
-  uint max_key_length;			/* Max key length */
+  ulong fields,                         /* fields in table */
+    pack_fields;                        /* packed fields in table */
+  uint rec_reflength;                   /* = 2-8 */
+  uint key_reflength;                   /* = 2-8 */
+  uint keys;                            /* same as in state.header */
+  uint auto_key;                        /* Which key-1 is a auto key */
+  uint blobs;                           /* Number of blobs */
+  uint pack_bits;                       /* Length of packed bits */
+  uint max_key_block_length;            /* Max block length */
+  uint max_key_length;                  /* Max key length */
   /* Extra allocation when using dynamic record format */
   uint extra_alloc_bytes;
   uint extra_alloc_procent;
   /* The following are from the header */
-  uint key_parts,all_key_parts;
+  uint key_parts, all_key_parts;
 } MI_BASE_INFO;
 
 
-	/* Structs used intern in database */
+        /* Structs used intern in database */
 
-typedef struct st_mi_blob		/* Info of record */
+typedef struct st_mi_blob               /* Info of record */
 {
-  ulong offset;				/* Offset to blob in record */
-  uint pack_length;			/* Type of packed length */
-  ulong length;				/* Calc:ed for each record */
+  ulong offset;                         /* Offset to blob in record */
+  uint pack_length;                     /* Type of packed length */
+  ulong length;                         /* Calc:ed for each record */
 } MI_BLOB;
 
 
-typedef struct st_mi_isam_pack {
+typedef struct st_mi_isam_pack
+{
   ulong header_length;
   uint ref_length;
   uchar version;
 } MI_PACK;
 
-#define MAX_NONMAPPED_INSERTS 1000      
+#define MAX_NONMAPPED_INSERTS 1000
 
-typedef struct st_mi_isam_share {	/* Shared between opens */
+typedef struct st_mi_isam_share
+{                                       /* Shared between opens */
   MI_STATE_INFO state;
   MI_BASE_INFO base;
   MI_KEYDEF  ft2_keyinfo;		/* Second-level ft-key definition */
@@ -170,26 +173,33 @@ typedef struct st_mi_isam_share {	/* Shared between opens */
         *index_file_name;
   uchar *file_map;			/* mem-map of file if possible */
   KEY_CACHE *key_cache;			/* ref to the current key cache */
+  /* To mark the key cache partitions containing dirty pages for this file */ 
+  ulonglong dirty_part_map;   
   MI_DECODE_TREE *decode_trees;
   uint16 *decode_tables;
-  int (*read_record)(struct st_myisam_info*, my_off_t, uchar*);
-  int (*write_record)(struct st_myisam_info*, const uchar*);
-  int (*update_record)(struct st_myisam_info*, my_off_t, const uchar*);
-  int (*delete_record)(struct st_myisam_info*);
-  int (*read_rnd)(struct st_myisam_info*, uchar*, my_off_t, my_bool);
-  int (*compare_record)(struct st_myisam_info*, const uchar *);
   /* Function to use for a row checksum. */
-  ha_checksum (*calc_checksum)(struct st_myisam_info*, const uchar *);
-  int (*compare_unique)(struct st_myisam_info*, MI_UNIQUEDEF *,
-			const uchar *record, my_off_t pos);
-  size_t (*file_read)(MI_INFO *, uchar *, size_t, my_off_t, myf);
-  size_t (*file_write)(MI_INFO *, const uchar *, size_t, my_off_t, myf);
-  invalidator_by_filename invalidator;  /* query cache invalidator */
-  ulong this_process;			/* processid */
-  ulong last_process;			/* For table-change-check */
-  ulong last_version;			/* Version on start */
-  ulong options;			/* Options used */
-  ulong min_pack_length;		/* Theese are used by packed data */
+  int(*read_record) (struct st_myisam_info *, my_off_t, uchar*);
+  int(*write_record) (struct st_myisam_info *, const uchar*);
+  int(*update_record) (struct st_myisam_info *, my_off_t, const uchar*);
+  int(*delete_record) (struct st_myisam_info *);
+  int(*read_rnd) (struct st_myisam_info *, uchar*, my_off_t, my_bool);
+  int(*compare_record) (struct st_myisam_info *, const uchar*);
+  ha_checksum(*calc_checksum) (struct st_myisam_info *, const uchar*);
+  /* calculate checksum for a row during check table */
+  ha_checksum(*calc_check_checksum)(struct st_myisam_info *, const uchar *);
+  int(*compare_unique) (struct st_myisam_info *, MI_UNIQUEDEF *,
+                        const uchar *record, my_off_t pos);
+    size_t (*file_read) (MI_INFO *, uchar *, size_t, my_off_t, myf);
+    size_t (*file_write) (MI_INFO *, const uchar *, size_t, my_off_t, myf);
+  /* query cache invalidator for merged tables */
+  invalidator_by_filename invalidator;
+  /* query cache invalidator for changing state */
+  invalidator_by_filename chst_invalidator;
+  ulong this_process;                   /* processid */
+  ulong last_process;                   /* For table-change-check */
+  ulong last_version;                   /* Version on start */
+  ulong options;                        /* Options used */
+  ulong min_pack_length;                /* Theese are used by packed data */
   ulong max_pack_length;
   ulong state_diff_length;
   uint	rec_reflength;			/* rec_reflength in use now */
@@ -205,12 +215,14 @@ typedef struct st_mi_isam_share {	/* Shared between opens */
   enum data_file_type data_file_type;
   /* Below flag is needed to make log tables work with concurrent insert */
   my_bool is_log_table;
-
-  my_bool  changed,			/* If changed since lock */
-    global_changed,			/* If changed since open */
-    not_flushed,
-    temporary,delay_key_write,
-    concurrent_insert;
+  /* This is 1 if they table checksum is of old type */
+  my_bool has_null_fields;
+  my_bool has_varchar_fields;
+
+  my_bool changed,                      /* If changed since lock */
+    global_changed,                     /* If changed since open */
+    not_flushed, temporary, delay_key_write, concurrent_insert;
+  my_bool deleting;                     /* we are going to delete this table */
 #ifdef THREAD
   THR_LOCK lock;
   mysql_mutex_t intern_lock;            /* Locking for use with _locking */
@@ -222,23 +234,16 @@ typedef struct st_mi_isam_share {	/* Shared between opens */
   mysql_rwlock_t mmap_lock;
 } MYISAM_SHARE;
 
+typedef ICP_RESULT (*index_cond_func_t)(void *param);
 
-typedef uint mi_bit_type;
-
-typedef struct st_mi_bit_buff {		/* Used for packing of record */
-  mi_bit_type current_byte;
-  uint bits;
-  uchar *pos,*end,*blob_pos,*blob_end;
-  uint error;
-} MI_BIT_BUFF;
-
-struct st_myisam_info {
-  MYISAM_SHARE *s;			/* Shared between open:s */
-  MI_STATUS_INFO *state,save_state;
-  MI_BLOB     *blobs;			/* Pointer to blobs */
-  MI_BIT_BUFF  bit_buff;
+struct st_myisam_info
+{
+  MYISAM_SHARE *s;                      /* Shared between open:s */
+  MI_STATUS_INFO *state, save_state;
+  MI_BLOB *blobs;                       /* Pointer to blobs */
+  MI_BIT_BUFF bit_buff;
   /* accumulate indexfile changes between write's */
-  TREE	        *bulk_insert;
+  TREE *bulk_insert;
   DYNAMIC_ARRAY *ft1_to_ft2;            /* used only in ft1->ft2 conversion */
   MEM_ROOT      ft_memroot;             /* used by the parser               */
   MYSQL_FTPARSER_PARAM *ftparser_param; /* share info between init/deinit   */
@@ -254,137 +259,89 @@ struct st_myisam_info {
   uint32 int_keytree_version;		/*  -""-  */
   int (*read_record)(struct st_myisam_info*, my_off_t, uchar*);
   invalidator_by_filename invalidator;  /* query cache invalidator */
-  ulong this_unique;			/* uniq filenumber or thread */
-  ulong last_unique;			/* last unique number */
-  ulong this_loop;			/* counter for this open */
-  ulong last_loop;			/* last used counter */
-  my_off_t lastpos,			/* Last record position */
-	nextpos;			/* Position to next record */
+  ulong this_unique;                    /* uniq filenumber or thread */
+  ulong last_unique;                    /* last unique number */
+  ulong this_loop;                      /* counter for this open */
+  ulong last_loop;                      /* last used counter */
+  my_off_t lastpos,                     /* Last record position */
+    nextpos;                            /* Position to next record */
   my_off_t save_lastpos;
-  my_off_t pos;				/* Intern variable */
-  my_off_t last_keypage;		/* Last key page read */
-  my_off_t last_search_keypage;		/* Last keypage when searching */
+  my_off_t pos;                         /* Intern variable */
+  my_off_t last_keypage;                /* Last key page read */
+  my_off_t last_search_keypage;         /* Last keypage when searching */
   my_off_t dupp_key_pos;
   ha_checksum checksum;                 /* Temp storage for row checksum */
-  /* QQ: the folloing two xxx_length fields should be removed,
-     as they are not compatible with parallel repair */
-  ulong packed_length,blob_length;	/* Length of found, packed record */
-  int  dfile;				/* The datafile */
-  uint opt_flag;			/* Optim. for space/speed */
-  uint update;				/* If file changed since open */
-  int	lastinx;			/* Last used index */
-  uint	lastkey_length;			/* Length of key in lastkey */
-  uint	last_rkey_length;		/* Last length in mi_rkey() */
+  /*
+    QQ: the folloing two xxx_length fields should be removed,
+     as they are not compatible with parallel repair
+  */
+  ulong packed_length, blob_length;     /* Length of found, packed record */
+  int dfile;                            /* The datafile */
+  uint open_flag;                       /* Parameters for open */
+  uint opt_flag;                        /* Optim. for space/speed */
+  uint once_flags;                      /* For MYISAMMRG */
+  uint update;                          /* If file changed since open */
+  int lastinx;                          /* Last used index */
+  uint lastkey_length;                  /* Length of key in lastkey */
+  uint last_rkey_length;                /* Last length in mi_rkey() */
   enum ha_rkey_function last_key_func;  /* CONTAIN, OVERLAP, etc */
-  uint  save_lastkey_length;
-  uint  pack_key_length;                /* For MYISAMMRG */
+  uint save_lastkey_length;
+  uint pack_key_length;                 /* For MYISAMMRG */
   uint16 last_used_keyseg;              /* For MyISAMMRG */
-  int	errkey;				/* Got last error on this key */
-  int   lock_type;			/* How database was locked */
-  int   tmp_lock_type;			/* When locked by readinfo */
-  uint	data_changed;			/* Somebody has changed data */
-  uint	save_update;			/* When using KEY_READ */
-  int	save_lastinx;
-  LIST	open_list;
-  IO_CACHE rec_cache;			/* When cacheing records */
-  uint  preload_buff_size;              /* When preloading indexes */
-  myf lock_wait;			/* is 0 or MY_DONT_WAIT */
-  my_bool was_locked;			/* Was locked in panic */
-  my_bool append_insert_at_end;		/* Set if concurrent insert */
+  int errkey;                           /* Got last error on this key */
+  int lock_type;                        /* How database was locked */
+  int tmp_lock_type;                    /* When locked by readinfo */
+  uint data_changed;                    /* Somebody has changed data */
+  uint save_update;                     /* When using KEY_READ */
+  int save_lastinx;
+  LIST open_list;
+  IO_CACHE rec_cache;                   /* When cacheing records */
+  uint preload_buff_size;               /* When preloading indexes */
+  myf lock_wait;                        /* is 0 or MY_SHORT_WAIT */
+  my_bool was_locked;                   /* Was locked in panic */
+  my_bool append_insert_at_end;         /* Set if concurrent insert */
   my_bool quick_mode;
-  my_bool page_changed;		/* If info->buff can't be used for rnext */
-  my_bool buff_used;		/* If info->buff has to be reread for rnext */
-  my_bool once_flags;           /* For MYISAMMRG */
-#ifdef __WIN__
-  my_bool owned_by_merge;                       /* This MyISAM table is part of a merge union */
-#endif
+  /* If info->buff can't be used for rnext */
+  my_bool page_changed;
+  /* If info->buff has to be reread for rnext */
+  my_bool buff_used;
+  index_cond_func_t index_cond_func;   /* Index condition function */
+  void *index_cond_func_arg;           /* parameter for the func */
 #ifdef THREAD
   THR_LOCK_DATA lock;
 #endif
-  uchar  *rtree_recursion_state;	/* For RTREE */
-  int     rtree_recursion_depth;
+  uchar *rtree_recursion_state;         /* For RTREE */
+  int rtree_recursion_depth;
 };
 
-typedef struct st_buffpek {
-  my_off_t file_pos;                    /* Where we are in the sort file */
-  uchar *base,*key;                     /* Key pointers */
-  ha_rows count;                        /* Number of rows in table */
-  ulong mem_count;                      /* numbers of keys in memory */
-  ulong max_keys;                       /* Max keys in buffert */
-} BUFFPEK;
-
-typedef struct st_mi_sort_param
-{
-  pthread_t  thr;
-  IO_CACHE read_cache, tempfile, tempfile_for_exceptions;
-  DYNAMIC_ARRAY buffpek;
-  MI_BIT_BUFF   bit_buff;               /* For parallel repair of packrec. */
-
-  /*
-    The next two are used to collect statistics, see update_key_parts for
-    description.
-  */
-  ulonglong unique[MI_MAX_KEY_SEG+1];
-  ulonglong notnull[MI_MAX_KEY_SEG+1];
-
-  my_off_t pos,max_pos,filepos,start_recpos;
-  uint key, key_length,real_key_length,sortbuff_size;
-  uint maxbuffers, keys, find_length, sort_keys_length;
-  my_bool fix_datafile, master;
-  my_bool calc_checksum;                /* calculate table checksum */
-  MI_KEYDEF *keyinfo;
-  HA_KEYSEG *seg;
-  SORT_INFO *sort_info;
-  uchar **sort_keys;
-  uchar *rec_buff;
-  void *wordlist, *wordptr;
-  MEM_ROOT wordroot;
-  uchar *record;
-  MY_TMPDIR *tmpdir;
-  int (*key_cmp)(struct st_mi_sort_param *, const void *, const void *);
-  int (*key_read)(struct st_mi_sort_param *,void *);
-  int (*key_write)(struct st_mi_sort_param *, const void *);
-  void (*lock_in_memory)(MI_CHECK *);
-  int (*write_keys)(struct st_mi_sort_param *, register uchar **,
-                    uint , struct st_buffpek *, IO_CACHE *);
-  uint (*read_to_buffer)(IO_CACHE *,struct st_buffpek *, uint);
-  int (*write_key)(struct st_mi_sort_param *, IO_CACHE *,uchar *,
-                   uint, uint);
-} MI_SORT_PARAM;
-
-	/* Some defines used by isam-funktions */
-
-#define USE_WHOLE_KEY	MI_MAX_KEY_BUFF*2 /* Use whole key in _mi_search() */
-#define F_EXTRA_LCK	-1
-
-	/* bits in opt_flag */
-#define MEMMAP_USED	32
+#define USE_WHOLE_KEY   HA_MAX_KEY_BUFF*2 /* Use whole key in _mi_search() */
+#define F_EXTRA_LCK     -1
+/* bits in opt_flag */
+#define MEMMAP_USED     32
 #define REMEMBER_OLD_POS 64
 
-#define WRITEINFO_UPDATE_KEYFILE	1
-#define WRITEINFO_NO_UNLOCK		2
+#define WRITEINFO_UPDATE_KEYFILE        1
+#define WRITEINFO_NO_UNLOCK             2
 
-        /* once_flags */
+/* once_flags */
 #define USE_PACKED_KEYS         1
 #define RRND_PRESERVE_LASTINX   2
 
-	/* bits in state.changed */
-
-#define STATE_CHANGED		1
-#define STATE_CRASHED		2
+/* bits in state.changed */
+#define STATE_CHANGED           1
+#define STATE_CRASHED           2
 #define STATE_CRASHED_ON_REPAIR 4
-#define STATE_NOT_ANALYZED	8
+#define STATE_NOT_ANALYZED      8
 #define STATE_NOT_OPTIMIZED_KEYS 16
-#define STATE_NOT_SORTED_PAGES	32
+#define STATE_NOT_SORTED_PAGES  32
 
-	/* options to mi_read_cache */
+/* options to mi_read_cache */
+#define READING_NEXT    1
+#define READING_HEADER  2
 
-#define READING_NEXT	1
-#define READING_HEADER	2
-
-#define mi_getint(x)	((uint) mi_uint2korr(x) & 32767)
+#define mi_getint(x)    ((uint) mi_uint2korr(x) & 32767)
 #define mi_putint(x,y,nod) { uint16 boh=(nod ? (uint16) 32768 : 0) + (uint16) (y);\
-			  mi_int2store(x,boh); }
+                          mi_int2store(x,boh); }
 #define mi_test_if_nod(x) (x[0] & 128 ? info->s->base.key_reflength : 0)
 #define mi_report_crashed(A, B) _mi_report_crashed((A), (B), __FILE__, __LINE__)
 #define mi_mark_crashed(x) do{(x)->s->state.changed|= STATE_CRASHED; \
@@ -427,38 +384,38 @@ typedef struct st_mi_sort_param
 
 #define get_pack_length(length) ((length) >= 255 ? 3 : 1)
 
-#define MI_MIN_BLOCK_LENGTH	20	/* Because of delete-link */
-#define MI_EXTEND_BLOCK_LENGTH	20	/* Don't use to small record-blocks */
-#define MI_SPLIT_LENGTH	((MI_EXTEND_BLOCK_LENGTH+4)*2)
-#define MI_MAX_DYN_BLOCK_HEADER	20	/* Max prefix of record-block */
+#define MI_MIN_BLOCK_LENGTH     20      /* Because of delete-link */
+#define MI_EXTEND_BLOCK_LENGTH  20      /* Don't use to small record-blocks */
+#define MI_SPLIT_LENGTH ((MI_EXTEND_BLOCK_LENGTH+4)*2)
+#define MI_MAX_DYN_BLOCK_HEADER 20      /* Max prefix of record-block */
 #define MI_BLOCK_INFO_HEADER_LENGTH 20
-#define MI_DYN_DELETE_BLOCK_HEADER 20	/* length of delete-block-header */
-#define MI_DYN_MAX_BLOCK_LENGTH	((1L << 24)-4L)
-#define MI_DYN_MAX_ROW_LENGTH	(MI_DYN_MAX_BLOCK_LENGTH - MI_SPLIT_LENGTH)
-#define MI_DYN_ALIGN_SIZE	4	/* Align blocks on this */
-#define MI_MAX_DYN_HEADER_BYTE	13	/* max header byte for dynamic rows */
-#define MI_MAX_BLOCK_LENGTH	((((ulong) 1 << 24)-1) & (~ (ulong) (MI_DYN_ALIGN_SIZE-1)))
+#define MI_DYN_DELETE_BLOCK_HEADER 20   /* length of delete-block-header */
+#define MI_DYN_MAX_BLOCK_LENGTH ((1L << 24)-4L)
+#define MI_DYN_MAX_ROW_LENGTH   (MI_DYN_MAX_BLOCK_LENGTH - MI_SPLIT_LENGTH)
+#define MI_DYN_ALIGN_SIZE       4       /* Align blocks on this */
+#define MI_MAX_DYN_HEADER_BYTE  13      /* max header byte for dynamic rows */
+#define MI_MAX_BLOCK_LENGTH     ((((ulong) 1 << 24)-1) & (~ (ulong) (MI_DYN_ALIGN_SIZE-1)))
 #define MI_REC_BUFF_OFFSET      ALIGN_SIZE(MI_DYN_DELETE_BLOCK_HEADER+sizeof(uint32))
 
 
-#define PACK_TYPE_SELECTED	1	/* Bits in field->pack_type */
-#define PACK_TYPE_SPACE_FIELDS	2
-#define PACK_TYPE_ZERO_FILL	4
-#define MI_FOUND_WRONG_KEY 32738	/* Impossible value from ha_key_cmp */
+#define PACK_TYPE_SELECTED      1       /* Bits in field->pack_type */
+#define PACK_TYPE_SPACE_FIELDS  2
+#define PACK_TYPE_ZERO_FILL     4
+#define MI_FOUND_WRONG_KEY 32738        /* Impossible value from ha_key_cmp */
 
-#define MI_MAX_KEY_BLOCK_SIZE	(MI_MAX_KEY_BLOCK_LENGTH/MI_MIN_KEY_BLOCK_LENGTH)
+#define MI_MAX_KEY_BLOCK_SIZE   (MI_MAX_KEY_BLOCK_LENGTH/MI_MIN_KEY_BLOCK_LENGTH)
 #define MI_BLOCK_SIZE(key_length,data_pointer,key_pointer,block_size) (((((key_length)+(data_pointer)+(key_pointer))*4+(key_pointer)+2)/(block_size)+1)*(block_size))
-#define MI_MAX_KEYPTR_SIZE	5        /* For calculating block lengths */
-#define MI_MIN_KEYBLOCK_LENGTH	50         /* When to split delete blocks */
+#define MI_MAX_KEYPTR_SIZE      5       /* For calculating block lengths */
+#define MI_MIN_KEYBLOCK_LENGTH  50      /* When to split delete blocks */
 
-#define MI_MIN_SIZE_BULK_INSERT_TREE 16384             /* this is per key */
+#define MI_MIN_SIZE_BULK_INSERT_TREE 16384 /* this is per key */
 #define MI_MIN_ROWS_TO_USE_BULK_INSERT 100
 #define MI_MIN_ROWS_TO_DISABLE_INDEXES 100
 #define MI_MIN_ROWS_TO_USE_WRITE_CACHE 10
 
 /* The UNIQUE check is done with a hashed long key */
 
-#define MI_UNIQUE_HASH_TYPE	HA_KEYTYPE_ULONG_INT
+#define MI_UNIQUE_HASH_TYPE     HA_KEYTYPE_ULONG_INT
 #define mi_unique_store(A,B)    mi_int4store((A),(B))
 
 #ifdef THREAD
@@ -470,7 +427,7 @@ extern mysql_mutex_t THR_LOCK_myisam;
 #define mysql_rwlock_unlock(A) {}
 #endif
 
-	/* Some extern variables */
+/* Some extern variables */
 
 extern LIST *myisam_open_list;
 extern uchar myisam_file_magic[], myisam_pack_file_magic[];
@@ -479,162 +436,167 @@ extern uint myisam_quick_table_bits;
 extern File myisam_log_file;
 extern ulong myisam_pid;
 
-	/* This is used by _mi_calc_xxx_key_length och _mi_store_key */
+/* This is used by _mi_calc_xxx_key_length och _mi_store_key */
 
 typedef struct st_mi_s_param
 {
-  uint	ref_length,key_length,
-	n_ref_length,
-	n_length,
-	totlength,
-	part_of_prev_key,prev_length,pack_marker;
-  uchar *key, *prev_key,*next_key_pos;
+  uint ref_length, key_length,
+    n_ref_length,
+    n_length, totlength, part_of_prev_key, prev_length, pack_marker;
+  uchar *key, *prev_key, *next_key_pos;
   my_bool store_not_null;
 } MI_KEY_PARAM;
 
-	/* Prototypes for intern functions */
+/* Prototypes for intern functions */
 
-extern int _mi_read_dynamic_record(MI_INFO *info,my_off_t filepos,uchar *buf);
-extern int _mi_write_dynamic_record(MI_INFO*, const uchar*);
-extern int _mi_update_dynamic_record(MI_INFO*, my_off_t, const uchar*);
+extern int _mi_read_dynamic_record(MI_INFO *info, my_off_t filepos, uchar *buf);
+extern int _mi_write_dynamic_record(MI_INFO *, const uchar *);
+extern int _mi_update_dynamic_record(MI_INFO *, my_off_t, const uchar *);
 extern int _mi_delete_dynamic_record(MI_INFO *info);
-extern int _mi_cmp_dynamic_record(MI_INFO *info,const uchar *record);
-extern int _mi_read_rnd_dynamic_record(MI_INFO *, uchar *,my_off_t, my_bool);
-extern int _mi_write_blob_record(MI_INFO*, const uchar*);
-extern int _mi_update_blob_record(MI_INFO*, my_off_t, const uchar*);
-extern int _mi_read_static_record(MI_INFO *info, my_off_t filepos,uchar *buf);
-extern int _mi_write_static_record(MI_INFO*, const uchar*);
-extern int _mi_update_static_record(MI_INFO*, my_off_t, const uchar*);
+extern int _mi_cmp_dynamic_record(MI_INFO *info, const uchar *record);
+extern int _mi_read_rnd_dynamic_record(MI_INFO *, uchar *, my_off_t, my_bool);
+extern int _mi_write_blob_record(MI_INFO *, const uchar *);
+extern int _mi_update_blob_record(MI_INFO *, my_off_t, const uchar *);
+extern int _mi_read_static_record(MI_INFO *info, my_off_t filepos, uchar *buf);
+extern int _mi_write_static_record(MI_INFO *, const uchar *);
+extern int _mi_update_static_record(MI_INFO *, my_off_t, const uchar *);
 extern int _mi_delete_static_record(MI_INFO *info);
-extern int _mi_cmp_static_record(MI_INFO *info,const uchar *record);
-extern int _mi_read_rnd_static_record(MI_INFO*, uchar *,my_off_t, my_bool);
-extern int _mi_ck_write(MI_INFO *info,uint keynr,uchar *key,uint length);
+extern int _mi_cmp_static_record(MI_INFO *info, const uchar *record);
+extern int _mi_read_rnd_static_record(MI_INFO *, uchar *, my_off_t, my_bool);
+extern int _mi_ck_write(MI_INFO *info, uint keynr, uchar *key, uint length);
 extern int _mi_ck_real_write_btree(MI_INFO *info, MI_KEYDEF *keyinfo,
                                    uchar *key, uint key_length,
                                    my_off_t *root, uint comp_flag);
-extern int _mi_enlarge_root(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key, my_off_t *root);
-extern int _mi_insert(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key,
-		      uchar *anc_buff,uchar *key_pos,uchar *key_buff,
-		      uchar *father_buff, uchar *father_keypos,
-		      my_off_t father_page, my_bool insert_last);
-extern int _mi_split_page(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key,
-			  uchar *buff,uchar *key_buff, my_bool insert_last);
-extern uchar *_mi_find_half_pos(uint nod_flag,MI_KEYDEF *keyinfo,uchar *page,
-				uchar *key,uint *return_key_length,
-				uchar **after_key);
-extern int _mi_calc_static_key_length(MI_KEYDEF *keyinfo,uint nod_flag,
-				      uchar *key_pos, uchar *org_key,
-				      uchar *key_buff,
-				      uchar *key, MI_KEY_PARAM *s_temp);
-extern int _mi_calc_var_key_length(MI_KEYDEF *keyinfo,uint nod_flag,
-				   uchar *key_pos, uchar *org_key,
-				   uchar *key_buff,
-				   uchar *key, MI_KEY_PARAM *s_temp);
-extern int _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,
-					uchar *key_pos, uchar *org_key,
-					uchar *prev_key,
-					uchar *key, MI_KEY_PARAM *s_temp);
-extern int _mi_calc_bin_pack_key_length(MI_KEYDEF *keyinfo,uint nod_flag,
-					uchar *key_pos,uchar *org_key,
-					uchar *prev_key,
-					uchar *key, MI_KEY_PARAM *s_temp);
-void _mi_store_static_key(MI_KEYDEF *keyinfo,  uchar *key_pos,
-			   MI_KEY_PARAM *s_temp);
-void _mi_store_var_pack_key(MI_KEYDEF *keyinfo,  uchar *key_pos,
-			     MI_KEY_PARAM *s_temp);
-void _mi_store_bin_pack_key(MI_KEYDEF *keyinfo,  uchar *key_pos,
-			    MI_KEY_PARAM *s_temp);
-
-extern int _mi_ck_delete(MI_INFO *info,uint keynr,uchar *key,uint key_length);
-extern int _mi_readinfo(MI_INFO *info,int lock_flag,int check_keybuffer);
-extern int _mi_writeinfo(MI_INFO *info,uint options);
+extern int _mi_enlarge_root(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
+                            my_off_t *root);
+extern int _mi_insert(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
+                      uchar *anc_buff, uchar *key_pos, uchar *key_buff,
+                      uchar *father_buff, uchar *father_keypos,
+                      my_off_t father_page, my_bool insert_last);
+extern int _mi_split_page(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
+                          uchar *buff, uchar *key_buff, my_bool insert_last);
+extern uchar *_mi_find_half_pos(uint nod_flag, MI_KEYDEF *keyinfo,
+                                uchar *page, uchar *key,
+                                uint *return_key_length, uchar ** after_key);
+extern int _mi_calc_static_key_length(MI_KEYDEF *keyinfo, uint nod_flag,
+                                      uchar *key_pos, uchar *org_key,
+                                      uchar *key_buff, uchar *key,
+                                      MI_KEY_PARAM *s_temp);
+extern int _mi_calc_var_key_length(MI_KEYDEF *keyinfo, uint nod_flag,
+                                   uchar *key_pos, uchar *org_key,
+                                   uchar *key_buff, uchar *key,
+                                   MI_KEY_PARAM *s_temp);
+extern int _mi_calc_var_pack_key_length(MI_KEYDEF *keyinfo, uint nod_flag,
+                                        uchar *key_pos, uchar *org_key,
+                                        uchar *prev_key, uchar *key,
+                                        MI_KEY_PARAM *s_temp);
+extern int _mi_calc_bin_pack_key_length(MI_KEYDEF *keyinfo, uint nod_flag,
+                                        uchar *key_pos, uchar *org_key,
+                                        uchar *prev_key, uchar *key,
+                                        MI_KEY_PARAM *s_temp);
+void _mi_store_static_key(MI_KEYDEF *keyinfo, uchar *key_pos,
+                          MI_KEY_PARAM *s_temp);
+void _mi_store_var_pack_key(MI_KEYDEF *keyinfo, uchar *key_pos,
+                            MI_KEY_PARAM *s_temp);
+void _mi_store_bin_pack_key(MI_KEYDEF *keyinfo, uchar *key_pos,
+                            MI_KEY_PARAM *s_temp);
+
+extern int _mi_ck_delete(MI_INFO *info, uint keynr, uchar *key,
+                         uint key_length);
+extern int _mi_readinfo(MI_INFO *info, int lock_flag, int check_keybuffer);
+extern int _mi_writeinfo(MI_INFO *info, uint options);
 extern int _mi_test_if_changed(MI_INFO *info);
 extern int _mi_mark_file_changed(MI_INFO *info);
 extern int _mi_decrement_open_count(MI_INFO *info);
-extern int _mi_check_index(MI_INFO *info,int inx);
-extern int _mi_search(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key,uint key_len,
-		      uint nextflag,my_off_t pos);
-extern int _mi_bin_search(struct st_myisam_info *info,MI_KEYDEF *keyinfo,
-			  uchar *page,uchar *key,uint key_len,uint comp_flag,
-			  uchar * *ret_pos,uchar *buff, my_bool *was_last_key);
-extern int _mi_seq_search(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *page,
-			  uchar *key,uint key_len,uint comp_flag,
-			  uchar **ret_pos,uchar *buff, my_bool *was_last_key);
-extern int _mi_prefix_search(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *page,
-			  uchar *key,uint key_len,uint comp_flag,
-			  uchar **ret_pos,uchar *buff, my_bool *was_last_key);
-extern my_off_t _mi_kpos(uint nod_flag,uchar *after_key);
-extern void _mi_kpointer(MI_INFO *info,uchar *buff,my_off_t pos);
-extern my_off_t _mi_dpos(MI_INFO *info, uint nod_flag,uchar *after_key);
+extern int _mi_check_index(MI_INFO *info, int inx);
+extern int _mi_search(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
+                      uint key_len, uint nextflag, my_off_t pos);
+extern int _mi_bin_search(struct st_myisam_info *info, MI_KEYDEF *keyinfo,
+                          uchar *page, uchar *key, uint key_len,
+                          uint comp_flag, uchar **ret_pos, uchar *buff,
+                          my_bool *was_last_key);
+extern int _mi_seq_search(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *page,
+                          uchar *key, uint key_len, uint comp_flag,
+                          uchar ** ret_pos, uchar *buff,
+                          my_bool *was_last_key);
+extern int _mi_prefix_search(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *page,
+                             uchar *key, uint key_len, uint comp_flag,
+                             uchar ** ret_pos, uchar *buff,
+                             my_bool *was_last_key);
+extern my_off_t _mi_kpos(uint nod_flag, uchar *after_key);
+extern void _mi_kpointer(MI_INFO *info, uchar *buff, my_off_t pos);
+extern my_off_t _mi_dpos(MI_INFO *info, uint nod_flag, uchar *after_key);
 extern my_off_t _mi_rec_pos(MYISAM_SHARE *info, uchar *ptr);
-extern void _mi_dpointer(MI_INFO *info, uchar *buff,my_off_t pos);
-extern int ha_key_cmp(HA_KEYSEG *keyseg, uchar *a,uchar *b,
-		       uint key_length,uint nextflag,uint *diff_length);
-extern uint _mi_get_static_key(MI_KEYDEF *keyinfo,uint nod_flag,uchar * *page,
-			       uchar *key);
-extern uint _mi_get_pack_key(MI_KEYDEF *keyinfo,uint nod_flag,uchar * *page,
-			     uchar *key);
+extern void _mi_dpointer(MI_INFO *info, uchar *buff, my_off_t pos);
+extern uint _mi_get_static_key(MI_KEYDEF *keyinfo, uint nod_flag,
+                               uchar **page, uchar *key);
+extern uint _mi_get_pack_key(MI_KEYDEF *keyinfo, uint nod_flag, uchar **page,
+                             uchar *key);
 extern uint _mi_get_binary_pack_key(MI_KEYDEF *keyinfo, uint nod_flag,
-				    uchar **page_pos, uchar *key);
-extern uchar *_mi_get_last_key(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *keypos,
-			       uchar *lastkey,uchar *endpos,
-			       uint *return_key_length);
+                                    uchar ** page_pos, uchar *key);
+extern uchar *_mi_get_last_key(MI_INFO *info, MI_KEYDEF *keyinfo,
+                               uchar *keypos, uchar *lastkey, uchar *endpos,
+                               uint *return_key_length);
 extern uchar *_mi_get_key(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *page,
-			  uchar *key, uchar *keypos, uint *return_key_length);
-extern uint _mi_keylength(MI_KEYDEF *keyinfo,uchar *key);
+                          uchar *key, uchar *keypos,
+                          uint *return_key_length);
+extern uint _mi_keylength(MI_KEYDEF *keyinfo, uchar *key);
 extern uint _mi_keylength_part(MI_KEYDEF *keyinfo, register uchar *key,
-			       HA_KEYSEG *end);
-extern uchar *_mi_move_key(MI_KEYDEF *keyinfo,uchar *to,uchar *from);
-extern int _mi_search_next(MI_INFO *info,MI_KEYDEF *keyinfo,uchar *key,
-			   uint key_length,uint nextflag,my_off_t pos);
-extern int _mi_search_first(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos);
-extern int _mi_search_last(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos);
-extern uchar *_mi_fetch_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t page,
-				int level,uchar *buff,int return_buffer);
-extern int _mi_write_keypage(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t page,
-			     int level, uchar *buff);
-extern int _mi_dispose(MI_INFO *info,MI_KEYDEF *keyinfo,my_off_t pos,
-                      int level);
-extern my_off_t _mi_new(MI_INFO *info,MI_KEYDEF *keyinfo,int level);
-extern uint _mi_make_key(MI_INFO *info,uint keynr,uchar *key,
-			 const uchar *record,my_off_t filepos);
-extern uint _mi_pack_key(register MI_INFO *info, uint keynr, uchar *key,
+                               HA_KEYSEG *end);
+extern uchar *_mi_move_key(MI_KEYDEF *keyinfo, uchar *to, uchar *from);
+extern int _mi_search_next(MI_INFO *info, MI_KEYDEF *keyinfo, uchar *key,
+                           uint key_length, uint nextflag, my_off_t pos);
+extern int _mi_search_first(MI_INFO *info, MI_KEYDEF *keyinfo, my_off_t pos);
+extern int _mi_search_last(MI_INFO *info, MI_KEYDEF *keyinfo, my_off_t pos);
+extern uchar *_mi_fetch_keypage(MI_INFO *info, MI_KEYDEF *keyinfo,
+                                my_off_t page, int level, uchar *buff,
+                                int return_buffer);
+extern int _mi_write_keypage(MI_INFO *info, MI_KEYDEF *keyinfo, my_off_t page,
+                             int level, uchar *buff);
+extern int _mi_dispose(MI_INFO *info, MI_KEYDEF *keyinfo, my_off_t pos,
+                       int level);
+extern my_off_t _mi_new(MI_INFO *info, MI_KEYDEF *keyinfo, int level);
+extern uint _mi_make_key(MI_INFO *info, uint keynr, uchar *key,
+                         const uchar *record, my_off_t filepos);
+extern uint _mi_pack_key(MI_INFO *info, uint keynr, uchar *key,
                          uchar *old, key_part_map keypart_map,
-                         HA_KEYSEG **last_used_keyseg);
-extern int _mi_read_key_record(MI_INFO *info,my_off_t filepos,uchar *buf);
-extern int _mi_read_cache(IO_CACHE *info,uchar *buff,my_off_t pos,
-			  uint length,int re_read_if_possibly);
-extern ulonglong retrieve_auto_increment(MI_INFO *info,const uchar *record);
+                         HA_KEYSEG ** last_used_keyseg);
+extern int _mi_read_key_record(MI_INFO *info, my_off_t filepos, uchar *buf);
+extern int _mi_read_cache(IO_CACHE *info, uchar *buff, my_off_t pos,
+                          uint length, int re_read_if_possibly);
+extern ulonglong retrieve_auto_increment(MI_INFO *info, const uchar *record);
 
-extern uchar *mi_alloc_rec_buff(MI_INFO *,ulong, uchar**);
+extern uchar *mi_alloc_rec_buff(MI_INFO *, ulong, uchar **);
 #define mi_get_rec_buff_ptr(info,buf)                              \
         ((((info)->s->options & HA_OPTION_PACK_RECORD) && (buf)) ? \
         (buf) - MI_REC_BUFF_OFFSET : (buf))
 #define mi_get_rec_buff_len(info,buf)                              \
         (*((uint32 *)(mi_get_rec_buff_ptr(info,buf))))
 
-extern ulong _mi_rec_unpack(MI_INFO *info,uchar *to,uchar *from,
-			    ulong reclength);
+extern ulong _mi_rec_unpack(MI_INFO *info, uchar *to, uchar *from,
+                            ulong reclength);
 extern my_bool _mi_rec_check(MI_INFO *info,const uchar *record, uchar *packpos,
                              ulong packed_length, my_bool with_checkum);
-extern int _mi_write_part_record(MI_INFO *info,my_off_t filepos,ulong length,
-				 my_off_t next_filepos,uchar **record,
-				 ulong *reclength,int *flag);
-extern void _mi_print_key(FILE *stream,HA_KEYSEG *keyseg,const uchar *key,
-			  uint length);
-extern my_bool _mi_read_pack_info(MI_INFO *info,pbool fix_keys);
-extern int _mi_read_pack_record(MI_INFO *info,my_off_t filepos,uchar *buf);
-extern int _mi_read_rnd_pack_record(MI_INFO*, uchar *,my_off_t, my_bool);
+extern int _mi_write_part_record(MI_INFO *info, my_off_t filepos, ulong length,
+                                 my_off_t next_filepos, uchar ** record,
+                                 ulong *reclength, int *flag);
+extern void _mi_print_key(FILE *stream, HA_KEYSEG *keyseg, const uchar *key,
+                          uint length);
+extern my_bool _mi_read_pack_info(MI_INFO *info, pbool fix_keys);
+extern int _mi_read_pack_record(MI_INFO *info, my_off_t filepos, uchar *buf);
+extern int _mi_read_rnd_pack_record(MI_INFO *, uchar *, my_off_t, my_bool);
 extern int _mi_pack_rec_unpack(MI_INFO *info, MI_BIT_BUFF *bit_buff,
                                uchar *to, uchar *from, ulong reclength);
-extern ulonglong mi_safe_mul(ulonglong a,ulonglong b);
+extern ulonglong mi_safe_mul(ulonglong a, ulonglong b);
 extern int _mi_ft_update(MI_INFO *info, uint keynr, uchar *keybuf,
-			 const uchar *oldrec, const uchar *newrec, my_off_t pos);
+                         const uchar *oldrec, const uchar *newrec,
+                         my_off_t pos);
 
 struct st_sort_info;
 
 
-typedef struct st_mi_block_info {	/* Parameter to _mi_get_block_info */
+typedef struct st_mi_block_info         /* Parameter to _mi_get_block_info */
+{
   uchar header[MI_BLOCK_INFO_HEADER_LENGTH];
   ulong rec_len;
   ulong data_len;
@@ -647,35 +609,37 @@ typedef struct st_mi_block_info {	/* Parameter to _mi_get_block_info */
   uint offset;
 } MI_BLOCK_INFO;
 
-	/* bits in return from _mi_get_block_info */
-
-#define BLOCK_FIRST	1
-#define BLOCK_LAST	2
-#define BLOCK_DELETED	4
-#define BLOCK_ERROR	8	/* Wrong data */
-#define BLOCK_SYNC_ERROR 16	/* Right data at wrong place */
-#define BLOCK_FATAL_ERROR 32	/* hardware-error */
-
-#define NEED_MEM	((uint) 10*4*(IO_SIZE+32)+32) /* Nead for recursion */
-#define MAXERR			20
-#define BUFFERS_WHEN_SORTING	16		/* Alloc for sort-key-tree */
-#define WRITE_COUNT		MY_HOW_OFTEN_TO_WRITE
-#define INDEX_TMP_EXT		".TMM"
-#define DATA_TMP_EXT		".TMD"
-
-#define UPDATE_TIME		1
-#define UPDATE_STAT		2
-#define UPDATE_SORT		4
-#define UPDATE_AUTO_INC		8
-#define UPDATE_OPEN_COUNT	16
-
-#define USE_BUFFER_INIT		(((1024L*512L-MALLOC_OVERHEAD)/IO_SIZE)*IO_SIZE)
-#define READ_BUFFER_INIT	(1024L*256L-MALLOC_OVERHEAD)
-#define SORT_BUFFER_INIT	(2048L*1024L-MALLOC_OVERHEAD)
-#define MIN_SORT_BUFFER		(4096-MALLOC_OVERHEAD)
-
-enum myisam_log_commands {
-  MI_LOG_OPEN,MI_LOG_WRITE,MI_LOG_UPDATE,MI_LOG_DELETE,MI_LOG_CLOSE,MI_LOG_EXTRA,MI_LOG_LOCK,MI_LOG_DELETE_ALL
+        /* bits in return from _mi_get_block_info */
+
+#define BLOCK_FIRST     1
+#define BLOCK_LAST      2
+#define BLOCK_DELETED   4
+#define BLOCK_ERROR     8               /* Wrong data */
+#define BLOCK_SYNC_ERROR 16             /* Right data at wrong place */
+#define BLOCK_FATAL_ERROR 32            /* hardware-error */
+
+#define NEED_MEM        ((uint) 10*4*(IO_SIZE+32)+32) /* Nead for recursion */
+#define MAXERR                  20
+#define BUFFERS_WHEN_SORTING    16      /* Alloc for sort-key-tree */
+#define WRITE_COUNT             MY_HOW_OFTEN_TO_WRITE
+#define INDEX_TMP_EXT           ".TMM"
+#define DATA_TMP_EXT            ".TMD"
+
+#define UPDATE_TIME             1
+#define UPDATE_STAT             2
+#define UPDATE_SORT             4
+#define UPDATE_AUTO_INC         8
+#define UPDATE_OPEN_COUNT       16
+
+#define USE_BUFFER_INIT         (((1024L*512L-MALLOC_OVERHEAD)/IO_SIZE)*IO_SIZE)
+#define READ_BUFFER_INIT        (1024L*256L-MALLOC_OVERHEAD)
+#define SORT_BUFFER_INIT        (2048L*1024L-MALLOC_OVERHEAD)
+#define MIN_SORT_BUFFER         (4096-MALLOC_OVERHEAD)
+
+enum myisam_log_commands
+{
+  MI_LOG_OPEN, MI_LOG_WRITE, MI_LOG_UPDATE, MI_LOG_DELETE, MI_LOG_CLOSE,
+    MI_LOG_EXTRA, MI_LOG_LOCK, MI_LOG_DELETE_ALL
 };
 
 #define myisam_log(a,b,c,d) if (myisam_log_file >= 0) _myisam_log(a,b,c,d)
@@ -685,29 +649,25 @@ enum myisam_log_commands {
 #define fast_mi_writeinfo(INFO) if (!(INFO)->s->tot_locks) (void) _mi_writeinfo((INFO),0)
 #define fast_mi_readinfo(INFO) ((INFO)->lock_type == F_UNLCK) && _mi_readinfo((INFO),F_RDLCK,1)
 
-#ifdef	__cplusplus
-extern "C" {
-#endif
-
-extern uint _mi_get_block_info(MI_BLOCK_INFO *,File, my_off_t);
-extern uint _mi_rec_pack(MI_INFO *info,uchar *to,const uchar *from);
+C_MODE_START
+extern uint _mi_get_block_info(MI_BLOCK_INFO *, File, my_off_t);
+extern uint _mi_rec_pack(MI_INFO *info, uchar *to, const uchar *from);
 extern uint _mi_pack_get_block_info(MI_INFO *myisam, MI_BIT_BUFF *bit_buff,
                                     MI_BLOCK_INFO *info, uchar **rec_buff_p,
                                     File file, my_off_t filepos);
-extern void _my_store_blob_length(uchar *pos,uint pack_length,uint length);
-extern void _myisam_log(enum myisam_log_commands command,MI_INFO *info,
-		       const uchar *buffert,uint length);
+extern void _mi_store_blob_length(uchar *pos, uint pack_length, uint length);
+extern void _myisam_log(enum myisam_log_commands command, MI_INFO *info,
+                        const uchar *buffert, uint length);
 extern void _myisam_log_command(enum myisam_log_commands command,
-			       MI_INFO *info, const uchar *buffert,
-			       uint length, int result);
-extern void _myisam_log_record(enum myisam_log_commands command,MI_INFO *info,
-			      const uchar *record,my_off_t filepos,
-			      int result);
+                                MI_INFO *info, const uchar *buffert,
+                                uint length, int result);
+extern void _myisam_log_record(enum myisam_log_commands command, MI_INFO *info,
+                               const uchar *record, my_off_t filepos,
+                               int result);
 extern void mi_report_error(int errcode, const char *file_name);
 extern my_bool _mi_memmap_file(MI_INFO *info);
 extern void _mi_unmap_file(MI_INFO *info);
 extern uint save_pack_length(uint version, uchar *block_buff, ulong length);
-extern uint read_pack_length(uint version, const uchar *buf, ulong *length);
 extern uint calc_pack_length(uint version, ulong length);
 extern size_t mi_mmap_pread(MI_INFO *info, uchar *Buffer,
                             size_t Count, my_off_t offset, myf MyFlags);
@@ -722,7 +682,7 @@ uint mi_state_info_write(File file, MI_STATE_INFO *state, uint pWrite);
 uchar *mi_state_info_read(uchar *ptr, MI_STATE_INFO *state);
 uint mi_state_info_read_dsk(File file, MI_STATE_INFO *state, my_bool pRead);
 uint mi_base_info_write(File file, MI_BASE_INFO *base);
-uchar *my_n_base_info_read(uchar *ptr, MI_BASE_INFO *base);
+uchar *mi_n_base_info_read(uchar *ptr, MI_BASE_INFO *base);
 int mi_keyseg_write(File file, const HA_KEYSEG *keyseg);
 uchar *mi_keyseg_read(uchar *ptr, HA_KEYSEG *keyseg);
 uint mi_keydef_write(File file, MI_KEYDEF *keydef);
@@ -734,23 +694,24 @@ uchar *mi_recinfo_read(uchar *ptr, MI_COLUMNDEF *recinfo);
 extern int mi_disable_indexes(MI_INFO *info);
 extern int mi_enable_indexes(MI_INFO *info);
 extern int mi_indexes_are_disabled(MI_INFO *info);
-ulong _my_calc_total_blob_length(MI_INFO *info, const uchar *record);
+ulong _mi_calc_total_blob_length(MI_INFO *info, const uchar *record);
 ha_checksum mi_checksum(MI_INFO *info, const uchar *buf);
 ha_checksum mi_static_checksum(MI_INFO *info, const uchar *buf);
 my_bool mi_check_unique(MI_INFO *info, MI_UNIQUEDEF *def, uchar *record,
-		     ha_checksum unique_hash, my_off_t pos);
+                        ha_checksum unique_hash, my_off_t pos);
 ha_checksum mi_unique_hash(MI_UNIQUEDEF *def, const uchar *buf);
 int _mi_cmp_static_unique(MI_INFO *info, MI_UNIQUEDEF *def,
-			   const uchar *record, my_off_t pos);
+                          const uchar *record, my_off_t pos);
 int _mi_cmp_dynamic_unique(MI_INFO *info, MI_UNIQUEDEF *def,
-			   const uchar *record, my_off_t pos);
+                           const uchar *record, my_off_t pos);
 int mi_unique_comp(MI_UNIQUEDEF *def, const uchar *a, const uchar *b,
-		   my_bool null_are_equal);
-void mi_get_status(void* param, int concurrent_insert);
-void mi_update_status(void* param);
-void mi_restore_status(void* param);
-void mi_copy_status(void* to,void *from);
-my_bool mi_check_status(void* param);
+                   my_bool null_are_equal);
+void mi_get_status(void *param, my_bool concurrent_insert);
+void mi_update_status(void *param);
+void mi_restore_status(void *param);
+void mi_copy_status(void *to, void *from);
+my_bool mi_check_status(void *param);
+void mi_fix_status(MI_INFO *org_table, MI_INFO *new_table);
 void mi_disable_non_unique_index(MI_INFO *info, ha_rows rows);
 
 extern MI_INFO *test_if_reopen(char *filename);
@@ -766,28 +727,21 @@ void mi_remap_file(MI_INFO *info, my_off_t size);
 void _mi_report_crashed(MI_INFO *file, const char *message,
                         const char *sfile, uint sline);
 
+int mi_check_index_cond(register MI_INFO *info, uint keynr, uchar *record);
     /* Functions needed by mi_check */
-volatile int *killed_ptr(MI_CHECK *param);
-void mi_check_print_error(MI_CHECK *param, const char *fmt,...);
-void mi_check_print_warning(MI_CHECK *param, const char *fmt,...);
-void mi_check_print_info(MI_CHECK *param, const char *fmt,...);
-int flush_pending_blocks(MI_SORT_PARAM *param);
-int sort_ft_buf_flush(MI_SORT_PARAM *sort_param);
-int thr_write_keys(MI_SORT_PARAM *sort_param);
+int killed_ptr(HA_CHECK *param);
+void mi_check_print_error(HA_CHECK *param, const char *fmt, ...);
+void mi_check_print_warning(HA_CHECK *param, const char *fmt, ...);
+void mi_check_print_info(HA_CHECK *param, const char *fmt, ...);
 #ifdef THREAD
 pthread_handler_t thr_find_all_keys(void *arg);
 #endif
-int flush_blocks(MI_CHECK *param, KEY_CACHE *key_cache, File file);
-
-int sort_write_record(MI_SORT_PARAM *sort_param);
-int _create_index_by_sort(MI_SORT_PARAM *info,my_bool no_messages, ulong);
-
-#ifdef __cplusplus
-}
-#endif
+extern void mi_set_index_cond_func(MI_INFO *info, index_cond_func_t func,
+                                   void *func_arg);
+int flush_blocks(HA_CHECK *param, KEY_CACHE *key_cache, File file,
+                 ulonglong *dirty_part_map);
 
 #ifdef HAVE_PSI_INTERFACE
-C_MODE_START
 extern PSI_mutex_key mi_key_mutex_MYISAM_SHARE_intern_lock,
   mi_key_mutex_MI_SORT_INFO_mutex, mi_key_mutex_MI_CHECK_print_msg;
 
@@ -802,6 +756,6 @@ extern PSI_file_key mi_key_file_datatmp, mi_key_file_dfile, mi_key_file_kfile,
 extern PSI_thread_key mi_key_thread_find_all_keys;
 
 void init_myisam_psi_keys();
-C_MODE_END
 #endif /* HAVE_PSI_INTERFACE */
 
+C_MODE_END