Adding upstream version 1:10.11.6.upstream/1%10.11.6

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 2503 insertions, 0 deletions

diff --git a/storage/maria/ma_write.c b/storage/maria/ma_write.c
new file mode 100644
index 00000000..95cc1203
--- /dev/null
+++ b/storage/maria/ma_write.c
@@ -0,0 +1,2503 @@
+/* Copyright (C) 2004-2008 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   Copyright (C) 2008-2009 Sun Microsystems, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; version 2 of the License.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
+
+/* Write a row to a MARIA table */
+
+#include "ma_fulltext.h"
+#include "ma_rt_index.h"
+#include "trnman.h"
+#include "ma_key_recover.h"
+#include "ma_blockrec.h"
+
+	/* Functions declared in this file */
+
+static int w_search(MARIA_HA *info, uint32 comp_flag,
+                    MARIA_KEY *key, my_off_t page,
+		    MARIA_PAGE *father_page, uchar *father_keypos,
+		    my_bool insert_last);
+static int _ma_balance_page(MARIA_HA *info, MARIA_KEYDEF *keyinfo,
+			    MARIA_KEY *key, MARIA_PAGE *curr_page,
+                            MARIA_PAGE *father_page,
+                            uchar *father_key_pos, MARIA_KEY_PARAM *s_temp);
+static uchar *_ma_find_last_pos(MARIA_KEY *int_key,
+                                MARIA_PAGE *page, uchar **after_key);
+static my_bool _ma_ck_write_tree(register MARIA_HA *info, MARIA_KEY *key);
+static my_bool _ma_ck_write_btree(register MARIA_HA *info, MARIA_KEY *key);
+static my_bool _ma_ck_write_btree_with_log(MARIA_HA *, MARIA_KEY *, my_off_t *,
+                                           uint32);
+static my_bool _ma_log_split(MARIA_PAGE *page, uint org_length,
+                             uint new_length,
+                             const uchar *key_pos,
+                             uint key_length, int move_length,
+                             enum en_key_op prefix_or_suffix,
+                             const uchar *data, uint data_length,
+                             uint changed_length);
+static my_bool _ma_log_del_prefix(MARIA_PAGE *page,
+                                  uint org_length, uint new_length,
+                                  const uchar *key_pos, uint key_length,
+                                  int move_length);
+static my_bool _ma_log_key_middle(MARIA_PAGE *page,
+                                  uint new_length,
+                                  uint data_added_first,
+                                  uint data_changed_first,
+                                  uint data_deleted_last,
+                                  const uchar *key_pos,
+                                  uint key_length, int move_length);
+
+/*
+  @brief Default handler for returing position to new row
+
+  @note
+    This is only called for non transactional tables and not for block format
+    which is why we use info->state here.
+*/
+
+MARIA_RECORD_POS _ma_write_init_default(MARIA_HA *info,
+                                        const uchar *record
+                                        __attribute__((unused)))
+{
+  return ((info->s->state.dellink != HA_OFFSET_ERROR &&
+           !info->append_insert_at_end) ?
+          info->s->state.dellink :
+          info->state->data_file_length);
+}
+
+my_bool _ma_write_abort_default(MARIA_HA *info __attribute__((unused)))
+{
+  return 0;
+}
+
+
+/* Write new record to a table */
+
+int maria_write(MARIA_HA *info, const uchar *record)
+{
+  MARIA_SHARE *share= info->s;
+  uint i;
+  int save_errno;
+  MARIA_RECORD_POS filepos, oldpos= info->cur_row.lastpos;
+  uchar *buff;
+  my_bool lock_tree= share->lock_key_trees;
+  my_bool fatal_error;
+  MARIA_KEYDEF *keyinfo;
+  DBUG_ENTER("maria_write");
+  DBUG_PRINT("enter",("index_file: %d  data_file: %d",
+                      share->kfile.file, info->dfile.file));
+
+  DBUG_EXECUTE_IF("maria_pretend_crashed_table_on_usage",
+                  _ma_print_error(info, HA_ERR_CRASHED, 0);
+                  DBUG_RETURN(my_errno= HA_ERR_CRASHED););
+  if (share->options & HA_OPTION_READ_ONLY_DATA)
+  {
+    DBUG_RETURN(my_errno=EACCES);
+  }
+  if (_ma_readinfo(info,F_WRLCK,1))
+    DBUG_RETURN(my_errno);
+
+  if ((share->state.changed & STATE_DATA_FILE_FULL) ||
+      (share->base.reloc == (ha_rows) 1 &&
+       share->base.records == (ha_rows) 1 &&
+       share->state.state.records == (ha_rows) 1))
+  {						/* System file */
+    my_errno=HA_ERR_RECORD_FILE_FULL;
+    goto err2;
+  }
+  if (share->state.state.key_file_length >= share->base.margin_key_file_length)
+  {
+    my_errno=HA_ERR_INDEX_FILE_FULL;
+    goto err2;
+  }
+  if (_ma_mark_file_changed(share))
+    goto err2;
+
+  /* Calculate and check all unique constraints */
+
+  if (share->state.header.uniques)
+  {
+    for (i=0 ; i < share->state.header.uniques ; i++)
+    {
+      MARIA_UNIQUEDEF *def= share->uniqueinfo + i;
+      ha_checksum unique_hash= _ma_unique_hash(share->uniqueinfo+i,record);
+      if (maria_is_key_active(share->state.key_map, def->key))
+      {
+        if (_ma_check_unique(info, def, record,
+                             unique_hash, HA_OFFSET_ERROR))
+          goto err2;
+      }
+      else
+        maria_unique_store(record+ share->keyinfo[def->key].seg->start,
+                           unique_hash);
+    }
+  }
+
+  /* Ensure we don't try to restore auto_increment if it doesn't change */
+  info->last_auto_increment= ~(ulonglong) 0;
+
+  if ((info->opt_flag & OPT_NO_ROWS))
+    filepos= HA_OFFSET_ERROR;
+  else
+  {
+    /*
+      This may either calculate a record or, or write the record and return
+      the record id
+    */
+    if ((filepos= (*share->write_record_init)(info, record)) ==
+        HA_OFFSET_ERROR)
+      goto err2;
+  }
+
+  /* Write all keys to indextree */
+  buff= info->lastkey_buff2;
+  for (i=0, keyinfo= share->keyinfo ; i < share->base.keys ; i++, keyinfo++)
+  {
+    MARIA_KEY int_key;
+    if (maria_is_key_active(share->state.key_map, i))
+    {
+      my_bool local_lock_tree= (lock_tree &&
+                                !(info->bulk_insert &&
+                                  is_tree_inited(&info->bulk_insert[i])));
+      if (local_lock_tree)
+      {
+	mysql_rwlock_wrlock(&keyinfo->root_lock);
+	keyinfo->version++;
+      }
+      if (keyinfo->flag & HA_FULLTEXT )
+      {
+        if (_ma_ft_add(info,i, buff,record,filepos))
+        {
+	  if (local_lock_tree)
+	    mysql_rwlock_unlock(&keyinfo->root_lock);
+          DBUG_PRINT("error",("Got error: %d on write",my_errno));
+          goto err;
+        }
+      }
+      else
+      {
+        while (keyinfo->ck_insert(info,
+                                  (*keyinfo->make_key)(info, &int_key, i,
+                                                       buff, record, filepos,
+                                                       info->trn->trid)))
+        {
+          TRN *blocker;
+          DBUG_PRINT("error",("Got error: %d on write",my_errno));
+          /*
+            explicit check to filter out temp tables, they aren't
+            transactional and don't have a proper TRN so the code
+            below doesn't work for them.
+            Also, filter out non-thread maria use, and table modified in
+            the same transaction.
+            At last, filter out non-dup-unique errors.
+          */
+          if (!local_lock_tree)
+            goto err;
+          if (info->dup_key_trid == info->trn->trid ||
+              my_errno != HA_ERR_FOUND_DUPP_KEY)
+          {
+	    mysql_rwlock_unlock(&keyinfo->root_lock);
+            goto err;
+          }
+          /* Different TrIDs: table must be transactional */
+          DBUG_ASSERT(share->base.born_transactional);
+          /*
+            If transactions are disabled, and dup_key_trid is different from
+            our TrID, it must be ALTER TABLE with dup_key_trid==0 (no
+            transaction). ALTER TABLE does have MARIA_HA::TRN not dummy but
+            puts TrID=0 in rows/keys.
+          */
+          DBUG_ASSERT(share->now_transactional ||
+                      (info->dup_key_trid == 0));
+          blocker= trnman_trid_to_trn(info->trn, info->dup_key_trid);
+          /*
+            if blocker TRN was not found, it means that the conflicting
+            transaction was committed long time ago. It could not be
+            aborted, as it would have to wait on the key tree lock
+            to remove the conflicting key it has inserted.
+          */
+          if (!blocker || blocker->commit_trid != ~(TrID)0)
+          { /* committed */
+            if (blocker)
+              mysql_mutex_unlock(& blocker->state_lock);
+            mysql_rwlock_unlock(&keyinfo->root_lock);
+            goto err;
+          }
+          mysql_rwlock_unlock(&keyinfo->root_lock);
+          {
+            /* running. now we wait */
+            WT_RESOURCE_ID rc;
+            int res;
+            PSI_stage_info old_stage_info;
+
+            rc.type= &ma_rc_dup_unique;
+            /* TODO savepoint id when we'll have them */
+            rc.value= (intptr)blocker;
+            res= wt_thd_will_wait_for(info->trn->wt, blocker->wt, & rc);
+            if (res != WT_OK)
+            {
+              mysql_mutex_unlock(& blocker->state_lock);
+              my_errno= HA_ERR_LOCK_DEADLOCK;
+              goto err;
+            }
+            proc_info_hook(0, &stage_waiting_for_a_resource, &old_stage_info,
+                           __func__, __FILE__, __LINE__);
+            res= wt_thd_cond_timedwait(info->trn->wt, & blocker->state_lock);
+            proc_info_hook(0, &old_stage_info, 0, __func__, __FILE__, __LINE__);
+
+            mysql_mutex_unlock(& blocker->state_lock);
+            if (res != WT_OK)
+            {
+              my_errno= res == WT_TIMEOUT ? HA_ERR_LOCK_WAIT_TIMEOUT
+                                          : HA_ERR_LOCK_DEADLOCK;
+              goto err;
+            }
+          }
+          mysql_rwlock_wrlock(&keyinfo->root_lock);
+#ifndef MARIA_CANNOT_ROLLBACK
+          keyinfo->version++;
+#endif
+        }
+      }
+
+      /* The above changed info->lastkey2. Inform maria_rnext_same(). */
+      info->update&= ~HA_STATE_RNEXT_SAME;
+
+      if (local_lock_tree)
+        mysql_rwlock_unlock(&keyinfo->root_lock);
+    }
+  }
+  if (share->calc_write_checksum)
+    info->cur_row.checksum= (*share->calc_write_checksum)(info,record);
+  if (filepos != HA_OFFSET_ERROR)
+  {
+    if ((*share->write_record)(info,record))
+      goto err;
+    info->state->checksum+= info->cur_row.checksum;
+  }
+  if (!share->now_transactional)
+  {
+    if (share->base.auto_key != 0)
+    {
+      const HA_KEYSEG *keyseg= share->keyinfo[share->base.auto_key-1].seg;
+      const uchar *key= record + keyseg->start;
+      set_if_bigger(share->state.auto_increment,
+                    ma_retrieve_auto_increment(key, keyseg->type));
+    }
+  }
+  info->state->records++;
+  info->update= (HA_STATE_CHANGED | HA_STATE_AKTIV | HA_STATE_WRITTEN |
+		 HA_STATE_ROW_CHANGED);
+  info->row_changes++;
+  share->state.changed|= STATE_NOT_MOVABLE | STATE_NOT_ZEROFILLED;
+  info->state->changed= 1;
+
+  info->cur_row.lastpos= oldpos;
+  _ma_writeinfo(info, WRITEINFO_UPDATE_KEYFILE);
+  if (info->invalidator != 0)
+  {
+    DBUG_PRINT("info", ("invalidator... '%s' (update)",
+                        share->open_file_name.str));
+    (*info->invalidator)(share->open_file_name.str);
+    info->invalidator=0;
+  }
+
+  /*
+    Update status of the table. We need to do so after each row write
+    for the log tables, as we want the new row to become visible to
+    other threads as soon as possible. We don't lock mutex here
+    (as it is required by pthread memory visibility rules) as (1) it's
+    not critical to use outdated share->is_log_table value (2) locking
+    mutex here for every write is too expensive.
+  */
+  if (share->is_log_table)
+    _ma_update_status((void*) info);
+
+  DBUG_RETURN(0);
+
+err:
+  save_errno= my_errno;
+  fatal_error= 0;
+  if (my_errno == HA_ERR_FOUND_DUPP_KEY ||
+      my_errno == HA_ERR_RECORD_FILE_FULL ||
+      my_errno == HA_ERR_LOCK_DEADLOCK ||
+      my_errno == HA_ERR_LOCK_WAIT_TIMEOUT ||
+      my_errno == HA_ERR_NULL_IN_SPATIAL ||
+      my_errno == HA_ERR_OUT_OF_MEM)
+  {
+    info->errkey= i < share->base.keys ? (int) i : -1;
+    /*
+      We delete keys in the reverse order of insertion. This is the order that
+      a rollback would do and is important for CLR_ENDs generated by
+      _ma_ft|ck_delete() and write_record_abort() to work (with any other
+      order they would cause wrong jumps in the chain).
+    */
+    while ( i-- > 0)
+    {
+      if (maria_is_key_active(share->state.key_map, i))
+      {
+	my_bool local_lock_tree= (lock_tree &&
+                                  !(info->bulk_insert &&
+                                    is_tree_inited(&info->bulk_insert[i])));
+        keyinfo= share->keyinfo + i;
+	if (local_lock_tree)
+	  mysql_rwlock_wrlock(&keyinfo->root_lock);
+        /**
+           @todo RECOVERY BUG
+           The key deletes below should generate CLR_ENDs
+        */
+	if (keyinfo->flag & HA_FULLTEXT)
+        {
+          if (_ma_ft_del(info,i,buff,record,filepos))
+	  {
+            fatal_error= 1;
+	    if (local_lock_tree)
+	      mysql_rwlock_unlock(&keyinfo->root_lock);
+            break;
+	  }
+        }
+        else
+	{
+	  MARIA_KEY key;
+	  if (keyinfo->ck_delete(info,
+                                 (*keyinfo->make_key)(info, &key, i, buff,
+                                                      record,
+                                                      filepos,
+                                                      info->trn->trid)))
+	  {
+            fatal_error= 1;
+	    if (local_lock_tree)
+	      mysql_rwlock_unlock(&keyinfo->root_lock);
+	    break;
+	  }
+	}
+	if (local_lock_tree)
+	  mysql_rwlock_unlock(&keyinfo->root_lock);
+      }
+    }
+  }
+  else
+    fatal_error= 1;
+
+  if (filepos != HA_OFFSET_ERROR)
+  {
+    if ((*share->write_record_abort)(info))
+      fatal_error= 1;
+  }
+
+  if (info->bulk_insert)
+  {
+    uint j;
+    for (j=0 ; j < share->base.keys ; j++)
+      maria_flush_bulk_insert(info, j);
+  }
+
+  if (fatal_error)
+    _ma_set_fatal_error(info, HA_ERR_CRASHED);
+
+  info->update= (HA_STATE_CHANGED | HA_STATE_WRITTEN | HA_STATE_ROW_CHANGED);
+  my_errno=save_errno;
+err2:
+  save_errno=my_errno;
+  DBUG_ASSERT(save_errno);
+  if (!save_errno)
+    save_errno= HA_ERR_INTERNAL_ERROR;          /* Should never happen */
+  DBUG_PRINT("error", ("got error: %d", save_errno));
+  _ma_writeinfo(info,WRITEINFO_UPDATE_KEYFILE);
+  DBUG_RETURN(my_errno=save_errno);
+} /* maria_write */
+
+
+/*
+  Write one key to btree
+
+  TODO
+    Remove this function and have bulk insert change keyinfo->ck_insert
+    to point to the right function
+*/
+
+my_bool _ma_ck_write(MARIA_HA *info, MARIA_KEY *key)
+{
+  DBUG_ENTER("_ma_ck_write");
+
+  if (info->bulk_insert &&
+      is_tree_inited(&info->bulk_insert[key->keyinfo->key_nr]))
+  {
+    DBUG_RETURN(_ma_ck_write_tree(info, key));
+  }
+  DBUG_RETURN(_ma_ck_write_btree(info, key));
+} /* _ma_ck_write */
+
+
+/**********************************************************************
+  Insert key into btree (normal case)
+**********************************************************************/
+
+static my_bool _ma_ck_write_btree(MARIA_HA *info, MARIA_KEY *key)
+{
+  my_bool error;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  my_off_t  *root= &info->s->state.key_root[keyinfo->key_nr];
+  DBUG_ENTER("_ma_ck_write_btree");
+
+  error= _ma_ck_write_btree_with_log(info, key, root,
+                                     keyinfo->write_comp_flag | key->flag);
+  if (info->ft1_to_ft2)
+  {
+    if (!error)
+      error= _ma_ft_convert_to_ft2(info, key);
+    delete_dynamic(info->ft1_to_ft2);
+    my_free(info->ft1_to_ft2);
+    info->ft1_to_ft2=0;
+  }
+  DBUG_RETURN(error);
+} /* _ma_ck_write_btree */
+
+
+/**
+  @brief Write a key to the b-tree
+
+  @retval 1   error
+  @retval 0    ok
+*/
+
+static my_bool _ma_ck_write_btree_with_log(MARIA_HA *info, MARIA_KEY *key,
+                                           my_off_t *root, uint32 comp_flag)
+{
+  MARIA_SHARE *share= info->s;
+  LSN lsn= LSN_IMPOSSIBLE;
+  int error;
+  my_off_t new_root= *root;
+  uchar key_buff[MARIA_MAX_KEY_BUFF];
+  MARIA_KEY org_key; /* Set/used when now_transactional=TRUE */
+  my_bool transactional= share->now_transactional;
+  DBUG_ENTER("_ma_ck_write_btree_with_log");
+  
+  LINT_INIT_STRUCT(org_key);
+
+  if (transactional)
+  {
+    /* Save original value as the key may change */
+    org_key= *key;
+    memcpy(key_buff, key->data, key->data_length + key->ref_length);
+  }
+
+  error= _ma_ck_real_write_btree(info, key, &new_root, comp_flag);
+  if (!error && transactional)
+  {
+    /* Log the original value */
+    *key= org_key;
+    key->data= key_buff;
+    error= _ma_write_undo_key_insert(info, key, root, new_root, &lsn);
+  }
+  else
+  {
+    *root= new_root;
+    _ma_fast_unlock_key_del(info);
+  }
+  _ma_unpin_all_pages_and_finalize_row(info, lsn);
+
+  DBUG_RETURN(error != 0);
+} /* _ma_ck_write_btree_with_log */
+
+
+/**
+  @brief Write a key to the b-tree
+
+  @retval 1   error
+  @retval 0    ok
+*/
+
+my_bool _ma_ck_real_write_btree(MARIA_HA *info, MARIA_KEY *key, my_off_t *root,
+                            uint32 comp_flag)
+{
+  int error;
+  DBUG_ENTER("_ma_ck_real_write_btree");
+
+  /* key_length parameter is used only if comp_flag is SEARCH_FIND */
+  if (*root == HA_OFFSET_ERROR ||
+      (error= w_search(info, comp_flag, key, *root, (MARIA_PAGE *) 0,
+                       (uchar*) 0, 1)) > 0)
+    error= _ma_enlarge_root(info, key, root);
+  DBUG_RETURN(error != 0);
+} /* _ma_ck_real_write_btree */
+
+
+/**
+  @brief Make a new root with key as only pointer
+
+  @retval 1   error
+  @retval 0    ok
+*/
+
+my_bool _ma_enlarge_root(MARIA_HA *info, MARIA_KEY *key, my_off_t *root)
+{
+  uint t_length, nod_flag;
+  MARIA_KEY_PARAM s_temp;
+  MARIA_SHARE *share= info->s;
+  MARIA_PINNED_PAGE tmp_page_link, *page_link= &tmp_page_link;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  MARIA_PAGE page;
+  my_bool res= 0;
+  DBUG_ENTER("_ma_enlarge_root");
+
+  page.info=    info;
+  page.keyinfo= keyinfo;
+  page.buff=    info->buff;
+  page.flag=    0;
+
+  nod_flag= (*root != HA_OFFSET_ERROR) ?  share->base.key_reflength : 0;
+  /* Store pointer to prev page if nod */
+  _ma_kpointer(info, page.buff + share->keypage_header, *root);
+  t_length= (*keyinfo->pack_key)(key, nod_flag, (uchar*) 0,
+                                 (uchar*) 0, (uchar*) 0, &s_temp);
+  page.size= share->keypage_header + t_length + nod_flag;
+
+  bzero(page.buff, share->keypage_header);
+  _ma_store_keynr(share, page.buff, keyinfo->key_nr);
+  if (nod_flag)
+    page.flag|= KEYPAGE_FLAG_ISNOD;
+  if (key->flag & (SEARCH_USER_KEY_HAS_TRANSID | SEARCH_PAGE_KEY_HAS_TRANSID))
+    page.flag|= KEYPAGE_FLAG_HAS_TRANSID;
+  (*keyinfo->store_key)(keyinfo, page.buff + share->keypage_header +
+                        nod_flag, &s_temp);
+
+  /* Mark that info->buff was used */
+  info->keyread_buff_used= info->page_changed= 1;
+  if ((page.pos= _ma_new(info, PAGECACHE_PRIORITY_HIGH, &page_link)) ==
+      HA_OFFSET_ERROR)
+    DBUG_RETURN(1);
+  *root= page.pos;
+
+  page_store_info(share, &page);
+
+  /*
+    Clear unitialized part of page to avoid valgrind/purify warnings
+    and to get a clean page that is easier to compress and compare with
+    pages generated with redo
+  */
+  bzero(page.buff + page.size, share->block_size - page.size);
+
+  if (share->now_transactional && _ma_log_new(&page, 1))
+    res= 1;
+
+  if (_ma_write_keypage(&page, page_link->write_lock,
+                        PAGECACHE_PRIORITY_HIGH))
+    res= 1;
+
+  DBUG_RETURN(res);
+} /* _ma_enlarge_root */
+
+
+/*
+  Search after a position for a key and store it there
+
+  TODO:
+  Change this to use pagecache directly instead of creating a copy
+  of the page. To do this, we must however change write-key-on-page
+  algorithm to not overwrite the buffer but instead store any overflow
+  key in a separate buffer.
+
+  @return
+  @retval -1   error
+  @retval 0    ok
+  @retval > 0  Key should be stored in higher tree
+*/
+
+static int w_search(register MARIA_HA *info, uint32 comp_flag, MARIA_KEY *key,
+                    my_off_t page_pos,
+                    MARIA_PAGE *father_page, uchar *father_keypos,
+		    my_bool insert_last)
+{
+  int error,flag;
+  uchar *temp_buff,*keypos,*keybuff;
+  my_bool was_last_key, buff_alloced;
+  my_off_t next_page, dup_key_pos;
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  MARIA_PAGE page;
+  DBUG_ENTER("w_search");
+  DBUG_PRINT("enter", ("page: %lu", (ulong) (page_pos/keyinfo->block_length)));
+
+  alloc_on_stack(*info->stack_end_ptr, temp_buff, buff_alloced,
+                 (keyinfo->block_length + keyinfo->max_store_length*3));
+  if (!temp_buff)
+    DBUG_RETURN(1);
+
+  keybuff= temp_buff + (keyinfo->block_length + keyinfo->max_store_length*2);
+
+  if (_ma_fetch_keypage(&page, info, keyinfo, page_pos, PAGECACHE_LOCK_WRITE,
+                        DFLT_INIT_HITS, temp_buff, 0))
+    goto err;
+
+  flag= (*keyinfo->bin_search)(key, &page, comp_flag, &keypos,
+                               keybuff, &was_last_key);
+  if (flag == 0)
+  {
+    MARIA_KEY tmp_key;
+    /* get position to record with duplicated key */
+
+    tmp_key.keyinfo= keyinfo;
+    tmp_key.data= keybuff;
+
+    if ((*keyinfo->get_key)(&tmp_key, page.flag, page.node, &keypos))
+      dup_key_pos= _ma_row_pos_from_key(&tmp_key);
+    else
+      dup_key_pos= HA_OFFSET_ERROR;
+
+    if (keyinfo->flag & HA_FULLTEXT)
+    {
+      uint off;
+      int  subkeys;
+
+      get_key_full_length_rdonly(off, keybuff);
+      subkeys=ft_sintXkorr(keybuff+off);
+      comp_flag=SEARCH_SAME;
+      if (subkeys >= 0)
+      {
+        /* normal word, one-level tree structure */
+        flag=(*keyinfo->bin_search)(key, &page, comp_flag,
+                                    &keypos, keybuff, &was_last_key);
+      }
+      else
+      {
+        /* popular word. two-level tree. going down */
+        my_off_t root= dup_key_pos;
+        MARIA_KEY subkey;
+        get_key_full_length_rdonly(off, key->data);
+        subkey.keyinfo= keyinfo= &share->ft2_keyinfo;
+        subkey.data= key->data + off;
+        subkey.data_length= key->data_length - off;
+        subkey.ref_length= key->ref_length;
+        subkey.flag= key->flag;
+
+        /* we'll modify key entry 'in vivo' */
+        keypos-= keyinfo->keylength + page.node;
+        error= _ma_ck_real_write_btree(info, &subkey, &root, comp_flag);
+        _ma_dpointer(share, keypos+HA_FT_WLEN, root);
+        subkeys--; /* should there be underflow protection ? */
+        DBUG_ASSERT(subkeys < 0);
+        ft_intXstore(keypos, subkeys);
+        if (!error)
+        {
+          page_mark_changed(info, &page);
+          if (_ma_write_keypage(&page, PAGECACHE_LOCK_LEFT_WRITELOCKED,
+                                DFLT_INIT_HITS))
+            goto err;
+        }
+        stack_alloc_free(temp_buff, buff_alloced);
+        DBUG_RETURN(error);
+      }
+    }
+    else /* not HA_FULLTEXT, normal HA_NOSAME key */
+    {
+      /*
+        TODO
+        When the index will support true versioning - with multiple
+        identical values in the UNIQUE index, invisible to each other -
+        the following should be changed to "continue inserting keys, at the
+        end (of the row or statement) wait". We need to wait on *all*
+        unique conflicts at once, not one-at-a-time, because we need to
+        know all blockers in advance, otherwise we'll have incomplete wait-for
+        graph.
+      */
+      /*
+        transaction that has inserted the conflicting key may be in progress.
+        the caller will wait for it to be committed or aborted.
+      */
+      info->dup_key_trid= _ma_trid_from_key(&tmp_key);
+      info->dup_key_pos= dup_key_pos;
+      my_errno= HA_ERR_FOUND_DUPP_KEY;
+      DBUG_PRINT("warning",
+                 ("Duplicate key. dup_key_trid: %lu  pos %lu  visible: %d",
+                  (ulong) info->dup_key_trid,
+                  (ulong) info->dup_key_pos,
+                  info->trn ? trnman_can_read_from(info->trn,
+                                                   info->dup_key_trid) : 2));
+      goto err;
+    }
+  }
+  if (flag == MARIA_FOUND_WRONG_KEY)
+  {
+    my_errno= HA_ERR_CRASHED;
+    goto err;
+  }
+  if (!was_last_key)
+    insert_last=0;
+  next_page= _ma_kpos(page.node, keypos);
+  if (next_page == HA_OFFSET_ERROR ||
+      (error= w_search(info, comp_flag, key, next_page,
+                       &page, keypos, insert_last)) > 0)
+  {
+    error= _ma_insert(info, key, &page, keypos, keybuff,
+                      father_page, father_keypos, insert_last);
+    if (error < 0)
+      goto err;
+    page_mark_changed(info, &page);
+    if (_ma_write_keypage(&page, PAGECACHE_LOCK_LEFT_WRITELOCKED,
+                          DFLT_INIT_HITS))
+      goto err;
+  }
+  stack_alloc_free(temp_buff, buff_alloced);
+  DBUG_RETURN(error);
+err:
+  stack_alloc_free(temp_buff, buff_alloced);
+  DBUG_PRINT("exit",("Error: %d",my_errno));
+  DBUG_RETURN(-1);
+} /* w_search */
+
+
+/*
+  Insert new key.
+
+  SYNOPSIS
+    _ma_insert()
+    info                        Open table information.
+    keyinfo                     Key definition information.
+    key                         New key
+    anc_page                    Key page (beginning)
+    key_pos                     Position in key page where to insert.
+    key_buff                    Copy of previous key if keys where packed.
+    father_page                 position of parent key page in file.
+    father_key_pos              position in parent key page for balancing.
+    insert_last                 If to append at end of page.
+
+  DESCRIPTION
+    Insert new key at right of key_pos.
+    Note that caller must save anc_buff
+
+    This function writes log records for all changed pages
+    (Including anc_buff and father page)
+
+  RETURN
+    < 0         Error.
+    0           OK
+    1           If key contains key to upper level (from balance page)
+    2           If key contains key to upper level (from split space)
+*/
+
+int _ma_insert(register MARIA_HA *info, MARIA_KEY *key,
+               MARIA_PAGE *anc_page, uchar *key_pos, uchar *key_buff,
+               MARIA_PAGE *father_page, uchar *father_key_pos,
+               my_bool insert_last)
+{
+  uint a_length, nod_flag, org_anc_length;
+  int t_length;
+  uchar *endpos, *prev_key, *anc_buff;
+  MARIA_KEY_PARAM s_temp;
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  DBUG_ENTER("_ma_insert");
+  DBUG_PRINT("enter",("key_pos:%p", key_pos));
+  DBUG_EXECUTE("key", _ma_print_key(DBUG_FILE, key););
+
+  /*
+    Note that anc_page->size can be bigger then block_size in case of
+    delete key that caused increase of page length
+  */
+  org_anc_length= a_length= anc_page->size;
+  nod_flag= anc_page->node;
+
+  anc_buff= anc_page->buff;
+  endpos= anc_buff+ a_length;
+  prev_key= (key_pos == anc_buff + share->keypage_header + nod_flag ?
+             (uchar*) 0 : key_buff);
+  t_length= (*keyinfo->pack_key)(key, nod_flag,
+                                 (key_pos == endpos ? (uchar*) 0 : key_pos),
+                                 prev_key, prev_key, &s_temp);
+#ifndef DBUG_OFF
+  if (prev_key && (keyinfo->flag & (HA_BINARY_PACK_KEY | HA_PACK_KEY)))
+  {
+    DBUG_DUMP("prev_key", prev_key, _ma_keylength(keyinfo,prev_key));
+  }
+  if (keyinfo->flag & HA_PACK_KEY)
+  {
+    DBUG_PRINT("test",("t_length: %d  ref_len: %d",
+		       t_length,s_temp.ref_length));
+    DBUG_PRINT("test",("n_ref_len: %d  n_length: %d  key_pos: %p",
+		       s_temp.n_ref_length, s_temp.n_length, s_temp.key));
+  }
+#endif
+  if (t_length > 0)
+  {
+    if (t_length >= keyinfo->maxlength*2+MARIA_INDEX_OVERHEAD_SIZE)
+    {
+      _ma_set_fatal_error(info, HA_ERR_CRASHED);
+      DBUG_RETURN(-1);
+    }
+    bmove_upp(endpos+t_length, endpos, (uint) (endpos-key_pos));
+  }
+  else
+  {
+    if (-t_length >= keyinfo->maxlength*2+MARIA_INDEX_OVERHEAD_SIZE)
+    {
+      _ma_set_fatal_error(info, HA_ERR_CRASHED);
+      DBUG_RETURN(-1);
+    }
+    bmove(key_pos,key_pos-t_length,(uint) (endpos-key_pos)+t_length);
+  }
+  (*keyinfo->store_key)(keyinfo,key_pos,&s_temp);
+  a_length+=t_length;
+
+  if (key->flag & (SEARCH_USER_KEY_HAS_TRANSID | SEARCH_PAGE_KEY_HAS_TRANSID))
+    _ma_mark_page_with_transid(share, anc_page);
+
+  anc_page->size= a_length;
+  page_store_size(share, anc_page);
+
+  /*
+    Check if the new key fits totally into the the page
+    (anc_buff is big enough to contain a full page + one key)
+  */
+  if (a_length <= share->max_index_block_size)
+  {
+    if (share->max_index_block_size - a_length < 32 &&
+        (keyinfo->flag & HA_FULLTEXT) && key_pos == endpos &&
+        share->base.key_reflength <= share->rec_reflength &&
+        share->options & (HA_OPTION_PACK_RECORD | HA_OPTION_COMPRESS_RECORD))
+    {
+      /*
+        Normal word. One-level tree. Page is almost full.
+        Let's consider converting.
+        We'll compare 'key' and the first key at anc_buff
+      */
+      const uchar *a= key->data;
+      const uchar *b= anc_buff + share->keypage_header + nod_flag;
+      uint alen, blen, ft2len= share->ft2_keyinfo.keylength;
+      /* the very first key on the page is always unpacked */
+      DBUG_ASSERT((*b & 128) == 0);
+#if HA_FT_MAXLEN >= 127
+      blen= mi_uint2korr(b); b+=2;
+      When you enable this code, as part of the MyISAM->Maria merge of
+ChangeSet@1.2562, 2008-04-09 07:41:40+02:00, serg@janus.mylan +9 -0
+  restore ft2 functionality, fix bugs.
+      Then this will enable two-level fulltext index, which is not totally
+      recoverable yet.
+      So remove this text and inform Guilhem so that he fixes the issue.
+#else
+      blen= *b++;
+#endif
+      get_key_length(alen,a);
+      DBUG_ASSERT(info->ft1_to_ft2==0);
+      if (alen == blen &&
+          ha_compare_char_varying(keyinfo->seg->charset,
+                                  a, alen,
+                                  b, blen,
+                                  FALSE/*b_is_prefix*/) == 0)
+      {
+        /* Yup. converting */
+        info->ft1_to_ft2=(DYNAMIC_ARRAY *)
+          my_malloc(PSI_INSTRUMENT_ME, sizeof(DYNAMIC_ARRAY), MYF(MY_WME));
+        my_init_dynamic_array(PSI_INSTRUMENT_ME, info->ft1_to_ft2, ft2len, 300,
+                              50, MYF(0));
+
+        /*
+          Now, adding all keys from the page to dynarray
+          if the page is a leaf (if not keys will be deleted later)
+        */
+        if (!nod_flag)
+        {
+          /*
+            Let's leave the first key on the page, though, because
+            we cannot easily dispatch an empty page here
+          */
+          b+=blen+ft2len+2;
+          for (a=anc_buff+a_length ; b < a ; b+=ft2len+2)
+            insert_dynamic(info->ft1_to_ft2, b);
+
+          /* fixing the page's length - it contains only one key now */
+          anc_page->size= share->keypage_header + blen + ft2len + 2;
+          page_store_size(share, anc_page);
+        }
+        /* the rest will be done when we're back from recursion */
+      }
+    }
+    else
+    {
+      if (share->now_transactional && 
+          _ma_log_add(anc_page, org_anc_length,
+                      key_pos, s_temp.changed_length, t_length, 1,
+                      KEY_OP_DEBUG_LOG_ADD_1))
+        DBUG_RETURN(-1);
+    }
+    DBUG_RETURN(0);				/* There is room on page */
+  }
+  /* Page is full */
+  if (nod_flag)
+    insert_last=0;
+  /*
+    TODO:
+    Remove 'born_transactional' here.
+    The only reason for having it here is that the current
+    _ma_balance_page_ can't handle variable length keys.
+  */
+  if (!(keyinfo->flag & (HA_VAR_LENGTH_KEY | HA_BINARY_PACK_KEY)) &&
+      father_page && !insert_last && !info->quick_mode &&
+      !info->s->base.born_transactional)
+  {
+    s_temp.key_pos= key_pos;
+    page_mark_changed(info, father_page);
+    DBUG_RETURN(_ma_balance_page(info, keyinfo, key, anc_page,
+                                 father_page, father_key_pos,
+                                 &s_temp));
+  }
+  DBUG_RETURN(_ma_split_page(info, key, anc_page,
+                             MY_MIN(org_anc_length,
+                                 info->s->max_index_block_size),
+                             key_pos, s_temp.changed_length, t_length,
+                             key_buff, insert_last));
+} /* _ma_insert */
+
+
+/**
+  @brief split a full page in two and assign emerging item to key
+
+  @fn _ma_split_page()
+    info	     Maria handler
+    keyinfo	     Key handler
+    key		     Buffer for middle key
+    split_page       Page that should be split
+    org_split_length Original length of split_page before key was inserted
+    inserted_key_pos Address in buffer where key was inserted
+    changed_length   Number of bytes changed at 'inserted_key_pos'
+    move_length	     Number of bytes buffer was moved when key was inserted
+    key_buff	     Key buffer to use for temporary storage of key
+    insert_last_key  If we are insert key on rightmost key page
+
+  @note
+    split_buff is not stored on disk    (caller has to do this)
+
+  @return
+  @retval 2   ok  (Middle key up from _ma_insert())
+  @retval -1  error
+*/
+
+int _ma_split_page(MARIA_HA *info, MARIA_KEY *key, MARIA_PAGE *split_page,
+                   uint org_split_length,
+                   uchar *inserted_key_pos, uint changed_length,
+                   int move_length,
+                   uchar *key_buff, my_bool insert_last_key)
+{
+  uint keynr;
+  uint length,a_length,key_ref_length,t_length,nod_flag,key_length;
+  uint page_length, split_length, page_flag;
+  uchar *key_pos, *pos, *UNINIT_VAR(after_key);
+  MARIA_KEY_PARAM s_temp;
+  MARIA_PINNED_PAGE tmp_page_link, *page_link= &tmp_page_link;
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  MARIA_KEY tmp_key;
+  MARIA_PAGE new_page;
+  int res;
+  DBUG_ENTER("_ma_split_page");
+
+  DBUG_DUMP("buff", split_page->buff, split_page->size);
+
+  info->page_changed=1;			/* Info->buff is used */
+  info->keyread_buff_used=1;
+  page_flag= split_page->flag;
+  nod_flag=  split_page->node;
+  key_ref_length= share->keypage_header + nod_flag;
+
+  new_page.info= info;
+  new_page.buff= info->buff;
+  new_page.keyinfo= keyinfo;
+
+  tmp_key.data=   key_buff;
+  tmp_key.keyinfo= keyinfo;
+  if (insert_last_key)
+    key_pos= _ma_find_last_pos(&tmp_key, split_page, &after_key);
+  else
+    key_pos= _ma_find_half_pos(&tmp_key, split_page, &after_key);
+  if (!key_pos)
+    DBUG_RETURN(-1);
+
+  key_length= tmp_key.data_length + tmp_key.ref_length;
+  split_length= (uint) (key_pos - split_page->buff);
+  a_length= split_page->size;
+  split_page->size= split_length;
+  page_store_size(share, split_page);
+
+  key_pos=after_key;
+  if (nod_flag)
+  {
+    DBUG_PRINT("test",("Splitting nod"));
+    pos=key_pos-nod_flag;
+    memcpy(new_page.buff + share->keypage_header, pos, (size_t) nod_flag);
+  }
+
+  /* Move middle item to key and pointer to new page */
+  if ((new_page.pos= _ma_new(info, PAGECACHE_PRIORITY_HIGH, &page_link)) ==
+      HA_OFFSET_ERROR)
+    DBUG_RETURN(-1);
+
+  _ma_copy_key(key, &tmp_key);
+  _ma_kpointer(info, key->data + key_length, new_page.pos);
+
+  /* Store new page */
+  if (!(*keyinfo->get_key)(&tmp_key, page_flag, nod_flag, &key_pos))
+    DBUG_RETURN(-1);
+
+  t_length=(*keyinfo->pack_key)(&tmp_key, nod_flag, (uchar *) 0,
+				(uchar*) 0, (uchar*) 0, &s_temp);
+  length=(uint) ((split_page->buff + a_length) - key_pos);
+  memcpy(new_page.buff + key_ref_length + t_length, key_pos,
+	 (size_t) length);
+  (*keyinfo->store_key)(keyinfo,new_page.buff+key_ref_length,&s_temp);
+  page_length= length + t_length + key_ref_length;
+
+  bzero(new_page.buff, share->keypage_header);
+  /* Copy KEYFLAG_FLAG_ISNODE and KEYPAGE_FLAG_HAS_TRANSID from parent page */
+  new_page.flag= page_flag;
+  new_page.size= page_length;
+  page_store_info(share, &new_page);
+
+  /* Copy key number */
+  keynr= _ma_get_keynr(share, split_page->buff);
+  _ma_store_keynr(share, new_page.buff, keynr);
+
+  res= 2;                                       /* Middle key up */
+  if (share->now_transactional && _ma_log_new(&new_page, 0))
+    res= -1;
+
+  /*
+    Clear unitialized part of page to avoid valgrind/purify warnings
+    and to get a clean page that is easier to compress and compare with
+    pages generated with redo
+  */
+  bzero(new_page.buff + page_length, share->block_size - page_length);
+
+  if (_ma_write_keypage(&new_page, page_link->write_lock,
+                        DFLT_INIT_HITS))
+    res= -1;
+
+  /* Save changes to split pages */
+  if (share->now_transactional &&
+      _ma_log_split(split_page, org_split_length, split_length,
+                    inserted_key_pos, changed_length, move_length,
+                    KEY_OP_NONE, (uchar*) 0, 0, 0))
+    res= -1;
+
+  DBUG_DUMP_KEY("middle_key", key);
+  DBUG_RETURN(res);
+} /* _ma_split_page */
+
+
+/*
+  Calculate how to much to move to split a page in two
+
+  Returns pointer to start of key.
+  key will contain the key.
+  after_key will contain the position to where the next key starts
+*/
+
+uchar *_ma_find_half_pos(MARIA_KEY *key, MARIA_PAGE *ma_page,
+                         uchar **after_key)
+{
+  uint keys, length, key_ref_length, page_flag, nod_flag;
+  uchar *page, *end, *lastpos;
+  MARIA_HA *info= ma_page->info;
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  DBUG_ENTER("_ma_find_half_pos");
+
+  nod_flag= ma_page->node;
+  key_ref_length= share->keypage_header + nod_flag;
+  page_flag= ma_page->flag;
+  length=    ma_page->size - key_ref_length;
+  page=      ma_page->buff+ key_ref_length;        /* Point to first key */
+
+  if (!(keyinfo->flag &
+	(HA_PACK_KEY | HA_SPACE_PACK_USED | HA_VAR_LENGTH_KEY |
+	 HA_BINARY_PACK_KEY)) && !(page_flag & KEYPAGE_FLAG_HAS_TRANSID))
+  {
+    key_ref_length=   keyinfo->keylength+nod_flag;
+    key->data_length= keyinfo->keylength - info->s->rec_reflength;
+    key->ref_length=  info->s->rec_reflength;
+    key->flag= 0;
+    keys=length/(key_ref_length*2);
+    end=page+keys*key_ref_length;
+    *after_key=end+key_ref_length;
+    memcpy(key->data, end, key_ref_length);
+    DBUG_RETURN(end);
+  }
+
+  end=page+length/2-key_ref_length;		/* This is aprox. half */
+  key->data[0]= 0;                               /* Safety */
+  do
+  {
+    lastpos=page;
+    if (!(length= (*keyinfo->get_key)(key, page_flag, nod_flag, &page)))
+      DBUG_RETURN(0);
+  } while (page < end);
+  *after_key= page;
+  DBUG_PRINT("exit",("returns: %p  page: %p  half: %p",
+                     lastpos, page, end));
+  DBUG_RETURN(lastpos);
+} /* _ma_find_half_pos */
+
+
+/**
+  Find second to last key on leaf page
+
+  @notes
+  Used to split buffer at last key.  In this case the next to last
+  key will be moved to parent page and last key will be on it's own page.
+  
+  @TODO
+  Add one argument for 'last key value' to get_key so that one can
+  do the loop without having to copy the found key the whole time
+
+  @return
+  @retval Pointer to the start of the key before the last key
+  @retval int_key will contain the last key
+*/
+
+static uchar *_ma_find_last_pos(MARIA_KEY *int_key, MARIA_PAGE *ma_page,
+                                uchar **after_key)
+{
+  uint keys, length, key_ref_length, page_flag;
+  uchar *page, *end, *lastpos, *prevpos;
+  uchar key_buff[MARIA_MAX_KEY_BUFF];
+  MARIA_HA *info= ma_page->info;
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= int_key->keyinfo;
+  MARIA_KEY tmp_key;
+  DBUG_ENTER("_ma_find_last_pos");
+
+  key_ref_length= share->keypage_header;
+  page_flag= ma_page->flag;
+  length= ma_page->size - key_ref_length;
+  page=   ma_page->buff + key_ref_length;
+
+  if (!(keyinfo->flag &
+	(HA_PACK_KEY | HA_SPACE_PACK_USED | HA_VAR_LENGTH_KEY |
+	 HA_BINARY_PACK_KEY)) && !(page_flag & KEYPAGE_FLAG_HAS_TRANSID))
+  {
+    keys= length / keyinfo->keylength - 2;
+    length= keyinfo->keylength;
+    int_key->data_length= length - info->s->rec_reflength;
+    int_key->ref_length=  info->s->rec_reflength;
+    int_key->flag= 0;
+    end=page+keys*length;
+    *after_key=end+length;
+    memcpy(int_key->data, end, length);
+    DBUG_RETURN(end);
+  }
+
+  end=page+length-key_ref_length;
+  lastpos=page;
+  tmp_key.data= key_buff;
+  tmp_key.keyinfo= int_key->keyinfo;
+  key_buff[0]= 0;                               /* Safety */
+
+  /* We know that there are at least 2 keys on the page */
+
+  if (!(length=(*keyinfo->get_key)(&tmp_key, page_flag, 0, &page)))
+  {
+    _ma_set_fatal_error(info, HA_ERR_CRASHED);
+    DBUG_RETURN(0);
+  }
+
+  do
+  {
+    prevpos=lastpos; lastpos=page;
+    int_key->data_length= tmp_key.data_length;
+    int_key->ref_length=  tmp_key.ref_length;
+    int_key->flag=        tmp_key.flag;
+    memcpy(int_key->data, key_buff, length);		/* previous key */
+    if (!(length=(*keyinfo->get_key)(&tmp_key, page_flag, 0, &page)))
+    {
+      _ma_set_fatal_error(info, HA_ERR_CRASHED);
+      DBUG_RETURN(0);
+    }
+  } while (page < end);
+
+  *after_key=lastpos;
+  DBUG_PRINT("exit",("returns: %p  page: %p  end: %p",
+                     prevpos,page,end));
+  DBUG_RETURN(prevpos);
+} /* _ma_find_last_pos */
+
+
+/**
+  @brief Balance page with static size keys with page on right/left
+
+  @param key 	Middle key will be stored here
+
+  @notes
+    Father_buff will always be changed
+    Caller must handle saving of curr_buff
+
+  @return
+  @retval  0   Balance was done (father buff is saved)
+  @retval  1   Middle key up    (father buff is not saved)
+  @retval  -1  Error
+*/
+
+static int _ma_balance_page(MARIA_HA *info, MARIA_KEYDEF *keyinfo,
+			    MARIA_KEY *key, MARIA_PAGE *curr_page,
+                            MARIA_PAGE *father_page,
+                            uchar *father_key_pos, MARIA_KEY_PARAM *s_temp)
+{
+  MARIA_PINNED_PAGE tmp_page_link, *new_page_link= &tmp_page_link;
+  MARIA_SHARE *share= info->s;
+  my_bool right, buff_alloced;
+  uint k_length,father_length,father_keylength,nod_flag,curr_keylength;
+  uint right_length,left_length,new_right_length,new_left_length,extra_length;
+  uint keys, tmp_length, extra_buff_length;
+  uchar *pos, *extra_buff, *parting_key;
+  uchar *tmp_part_key;
+  MARIA_PAGE next_page, extra_page, *left_page, *right_page;
+  DBUG_ENTER("_ma_balance_page");
+
+  alloc_on_stack(*info->stack_end_ptr, tmp_part_key, buff_alloced,
+                 keyinfo->max_store_length);
+  if (!tmp_part_key)
+    DBUG_RETURN(-1);
+
+  k_length= keyinfo->keylength;
+  father_length= father_page->size;
+  father_keylength= k_length + share->base.key_reflength;
+  nod_flag= curr_page->node;
+  curr_keylength= k_length+nod_flag;
+  info->page_changed=1;
+
+  if ((father_key_pos != father_page->buff+father_length &&
+       (info->state->records & 1)) ||
+      father_key_pos == father_page->buff+ share->keypage_header +
+      share->base.key_reflength)
+  {
+    right=1;
+    next_page.pos= _ma_kpos(share->base.key_reflength,
+                            father_key_pos+father_keylength);
+    left_page=  curr_page;
+    right_page= &next_page;
+    DBUG_PRINT("info", ("use right page: %lu",
+                        (ulong) (next_page.pos / keyinfo->block_length)));
+  }
+  else
+  {
+    right=0;
+    father_key_pos-=father_keylength;
+    next_page.pos= _ma_kpos(share->base.key_reflength,father_key_pos);
+    left_page=  &next_page;
+    right_page= curr_page;
+    DBUG_PRINT("info", ("use left page: %lu",
+                        (ulong) (next_page.pos / keyinfo->block_length)));
+  }					/* father_key_pos ptr to parting key */
+
+  if (_ma_fetch_keypage(&next_page, info, keyinfo, next_page.pos,
+                        PAGECACHE_LOCK_WRITE,
+                        DFLT_INIT_HITS, info->buff, 0))
+    goto err;
+  page_mark_changed(info, &next_page);
+  DBUG_DUMP("next", next_page.buff, next_page.size);
+
+  /* Test if there is room to share keys */
+  left_length= left_page->size;
+  right_length= right_page->size;
+  keys= ((left_length+right_length-share->keypage_header*2-nod_flag*2)/
+         curr_keylength);
+
+  if ((right ? right_length : left_length) + curr_keylength <=
+      share->max_index_block_size)
+  {
+    /* Enough space to hold all keys in the two buffers ; Balance bufferts */
+    new_left_length= share->keypage_header+nod_flag+(keys/2)*curr_keylength;
+    new_right_length=share->keypage_header+nod_flag+(((keys+1)/2)*
+                                                       curr_keylength);
+    left_page->size=  new_left_length;
+    page_store_size(share, left_page);
+    right_page->size= new_right_length;
+    page_store_size(share, right_page);
+
+    DBUG_PRINT("info", ("left_length: %u -> %u  right_length: %u -> %u",
+                        left_length, new_left_length,
+                        right_length, new_right_length));
+    if (left_length < new_left_length)
+    {
+      uint length;
+      DBUG_PRINT("info", ("move keys to end of buff"));
+
+      /* Move keys right_page -> left_page */
+      pos= left_page->buff+left_length;
+      memcpy(pos,father_key_pos, (size_t) k_length);
+      memcpy(pos+k_length, right_page->buff + share->keypage_header,
+	     (size_t) (length=new_left_length - left_length - k_length));
+      pos= right_page->buff + share->keypage_header + length;
+      memcpy(father_key_pos, pos, (size_t) k_length);
+      bmove(right_page->buff + share->keypage_header,
+            pos + k_length, new_right_length - share->keypage_header);
+
+      if (share->now_transactional)
+      {
+        if (right)
+        {
+          /*
+            Log changes to page on left
+            The original page is on the left and stored in left_page->buff
+            We have on the page the newly inserted key and data
+            from buff added last on the page
+          */
+          if (_ma_log_split(curr_page,
+                            left_length - s_temp->move_length,
+                            new_left_length,
+                            s_temp->key_pos, s_temp->changed_length,
+                            s_temp->move_length,
+                            KEY_OP_ADD_SUFFIX,
+                            curr_page->buff + left_length,
+                            new_left_length - left_length,
+                            new_left_length - left_length+ k_length))
+            goto err;
+          /*
+            Log changes to page on right
+            This contains the original data with some keys deleted from
+            start of page
+          */
+          if (_ma_log_prefix(&next_page, 0,
+                             ((int) new_right_length - (int) right_length),
+                             KEY_OP_DEBUG_LOG_PREFIX_3))
+            goto err;
+        }
+        else
+        {
+          /*
+            Log changes to page on right (the original page) which is in buff
+            Data is removed from start of page
+            The inserted key may be in buff or moved to curr_buff
+          */
+          if (_ma_log_del_prefix(curr_page,
+                                 right_length - s_temp->changed_length,
+                                 new_right_length,
+                                 s_temp->key_pos, s_temp->changed_length,
+                                 s_temp->move_length))
+            goto err;
+          /*
+            Log changes to page on left, which has new data added last
+          */
+          if (_ma_log_suffix(&next_page, left_length, new_left_length))
+            goto err;
+        }
+      }
+    }
+    else
+    {
+      uint length;
+      DBUG_PRINT("info", ("move keys to start of right_page"));
+
+      bmove_upp(right_page->buff + new_right_length,
+                right_page->buff + right_length,
+		right_length - share->keypage_header);
+      length= new_right_length -right_length - k_length;
+      memcpy(right_page->buff + share->keypage_header + length, father_key_pos,
+             (size_t) k_length);
+      pos= left_page->buff + new_left_length;
+      memcpy(father_key_pos, pos, (size_t) k_length);
+      memcpy(right_page->buff + share->keypage_header, pos+k_length,
+             (size_t) length);
+
+      if (share->now_transactional)
+      {
+        if (right)
+        {
+          /*
+            Log changes to page on left
+            The original page is on the left and stored in curr_buff
+            The page is shortened from end and the key may be on the page
+          */
+          if (_ma_log_split(curr_page,
+                            left_length - s_temp->move_length,
+                            new_left_length,
+                            s_temp->key_pos, s_temp->changed_length,
+                            s_temp->move_length,
+                            KEY_OP_NONE, (uchar*) 0, 0, 0))
+            goto err;
+          /*
+            Log changes to page on right
+            This contains the original data, with some data from cur_buff
+            added first
+          */
+          if (_ma_log_prefix(&next_page,
+                             (uint) (new_right_length - right_length),
+                             (int) (new_right_length - right_length),
+                             KEY_OP_DEBUG_LOG_PREFIX_4))
+            goto err;
+        }
+        else
+        {
+          /*
+            Log changes to page on right (the original page) which is in buff
+            We have on the page the newly inserted key and data
+            from buff added first on the page
+          */
+          uint diff_length= new_right_length - right_length;
+          if (_ma_log_split(curr_page,
+                            left_length - s_temp->move_length,
+                            new_right_length,
+                            s_temp->key_pos + diff_length,
+                            s_temp->changed_length,
+                            s_temp->move_length,
+                            KEY_OP_ADD_PREFIX,
+                            curr_page->buff + share->keypage_header,
+                            diff_length, diff_length + k_length))
+            goto err;
+          /*
+            Log changes to page on left, which is shortened from end
+          */
+          if (_ma_log_suffix(&next_page, left_length, new_left_length))
+            goto err;
+        }
+      }
+    }
+
+    /* Log changes to father (one level up) page */
+
+    if (share->now_transactional &&
+        _ma_log_change(father_page, father_key_pos, k_length,
+                       KEY_OP_DEBUG_FATHER_CHANGED_1))
+      goto err;
+
+    /*
+      next_page_link->changed is marked as true above and fathers
+      page_link->changed is marked as true in caller
+    */
+    if (_ma_write_keypage(&next_page, PAGECACHE_LOCK_LEFT_WRITELOCKED,
+                          DFLT_INIT_HITS) ||
+        _ma_write_keypage(father_page,
+                          PAGECACHE_LOCK_LEFT_WRITELOCKED, DFLT_INIT_HITS))
+      goto err;
+    stack_alloc_free(tmp_part_key, buff_alloced);
+    DBUG_RETURN(0);
+  }
+
+  /* left_page and right_page are full, lets split and make new nod */
+
+  extra_buff= info->buff+share->base.max_key_block_length;
+  new_left_length= new_right_length= (share->keypage_header + nod_flag +
+                                      (keys+1) / 3 * curr_keylength);
+  extra_page.info=    info;
+  extra_page.keyinfo= keyinfo;
+  extra_page.buff=    extra_buff;
+
+  /*
+    5 is the minum number of keys we can have here. This comes from
+    the fact that each full page can store at least 2 keys and in this case
+    we have a 'split' key, ie 2+2+1 = 5
+  */
+  if (keys == 5)				/* Too few keys to balance */
+    new_left_length-=curr_keylength;
+  extra_length= (nod_flag + left_length + right_length -
+                 new_left_length - new_right_length - curr_keylength);
+  extra_buff_length= extra_length + share->keypage_header;
+  DBUG_PRINT("info",("left_length: %d  right_length: %d  new_left_length: %d  new_right_length: %d  extra_length: %d",
+                     left_length, right_length,
+                     new_left_length, new_right_length,
+                     extra_length));
+
+  left_page->size= new_left_length;
+  page_store_size(share, left_page);
+  right_page->size= new_right_length;
+  page_store_size(share, right_page);
+
+  bzero(extra_buff, share->keypage_header);
+  extra_page.flag= nod_flag ? KEYPAGE_FLAG_ISNOD : 0;
+  extra_page.size= extra_buff_length;
+  page_store_info(share, &extra_page);
+
+  /* Copy key number */
+  _ma_store_keynr(share, extra_buff, keyinfo->key_nr);
+
+  /* move first largest keys to new page  */
+  pos= right_page->buff + right_length-extra_length;
+  memcpy(extra_buff + share->keypage_header, pos, extra_length);
+  /* Zero old data from buffer */
+  bzero(extra_buff + extra_buff_length,
+        share->block_size - extra_buff_length);
+
+  /* Save new parting key between buff and extra_buff */
+  memcpy(tmp_part_key, pos-k_length,k_length);
+  /* Make place for new keys */
+  bmove_upp(right_page->buff + new_right_length, pos - k_length,
+            right_length - extra_length - k_length - share->keypage_header);
+  /* Copy keys from left page */
+  pos= left_page->buff + new_left_length;
+  memcpy(right_page->buff + share->keypage_header, pos + k_length,
+         (size_t) (tmp_length= left_length - new_left_length - k_length));
+  /* Copy old parting key */
+  parting_key= right_page->buff + share->keypage_header + tmp_length;
+  memcpy(parting_key, father_key_pos, (size_t) k_length);
+
+  /* Move new parting keys up to caller */
+  memcpy((right ? key->data : father_key_pos),pos,(size_t) k_length);
+  memcpy((right ? father_key_pos : key->data),tmp_part_key, k_length);
+
+  if ((extra_page.pos= _ma_new(info, DFLT_INIT_HITS, &new_page_link))
+      == HA_OFFSET_ERROR)
+    goto err;
+  _ma_kpointer(info,key->data+k_length, extra_page.pos);
+  /* This is safe as long we are using not keys with transid */
+  key->data_length= k_length - info->s->rec_reflength;
+  key->ref_length= info->s->rec_reflength;
+
+  if (right)
+  {
+    /*
+      Page order according to key values:
+      orignal_page (curr_page = left_page), next_page (buff), extra_buff
+
+      Move page positions so that we store data in extra_page where
+      next_page was and next_page will be stored at the new position
+    */
+    swap_variables(my_off_t, extra_page.pos, next_page.pos);
+  } 
+
+  if (share->now_transactional)
+  {
+    if (right)
+    {
+      /*
+        left_page is shortened,
+        right_page is getting new keys at start and shortened from end.
+        extra_page is new page
+
+        Note that extra_page (largest key parts) will be stored at the
+        place of the original 'right' page (next_page) and right page
+        will be stored at the new page position
+
+        This makes the log entries smaller as right_page contains all
+        data to generate the data extra_buff
+      */
+
+      /*
+        Log changes to page on left (page shortened page at end)
+      */
+      if (_ma_log_split(curr_page,
+                        left_length - s_temp->move_length, new_left_length,
+                        s_temp->key_pos, s_temp->changed_length,
+                        s_temp->move_length,
+                        KEY_OP_NONE, (uchar*) 0, 0, 0))
+        goto err;
+      /*
+        Log changes to right page (stored at next page)
+        This contains the last 'extra_buff' from 'buff'
+      */
+      if (_ma_log_prefix(&extra_page,
+                         0, (int) (extra_buff_length - right_length),
+                         KEY_OP_DEBUG_LOG_PREFIX_5))
+        goto err;
+
+      /*
+        Log changes to middle page, which is stored at the new page
+        position
+      */
+      if (_ma_log_new(&next_page, 0))
+        goto err;
+    }
+    else
+    {
+      /*
+        Log changes to page on right (the original page) which is in buff
+        This contains the original data, with some data from curr_buff
+        added first and shortened at end
+      */
+      int data_added_first= left_length - new_left_length;
+      if (_ma_log_key_middle(right_page,
+                             new_right_length,
+                             data_added_first,
+                             data_added_first,
+                             extra_length,
+                             s_temp->key_pos,
+                             s_temp->changed_length,
+                             s_temp->move_length))
+        goto err;
+
+      /* Log changes to page on left, which is shortened from end */
+      if (_ma_log_suffix(left_page, left_length, new_left_length))
+        goto err;
+
+      /* Log change to rightmost (new) page */
+      if (_ma_log_new(&extra_page, 0))
+        goto err;
+    }
+
+    /* Log changes to father (one level up) page */
+    if (share->now_transactional &&
+        _ma_log_change(father_page, father_key_pos, k_length,
+                       KEY_OP_DEBUG_FATHER_CHANGED_2))
+      goto err;
+  }
+
+  if (_ma_write_keypage(&next_page,
+                        (right ? new_page_link->write_lock :
+                         PAGECACHE_LOCK_LEFT_WRITELOCKED),
+                        DFLT_INIT_HITS) ||
+      _ma_write_keypage(&extra_page,
+                        (!right ? new_page_link->write_lock :
+                         PAGECACHE_LOCK_LEFT_WRITELOCKED),
+                        DFLT_INIT_HITS))
+    goto err;
+
+  stack_alloc_free(tmp_part_key, buff_alloced);
+  DBUG_RETURN(1);				/* Middle key up */
+
+err:
+  stack_alloc_free(tmp_part_key, buff_alloced);
+  DBUG_RETURN(-1);
+} /* _ma_balance_page */
+
+
+/**********************************************************************
+ *                Bulk insert code                                    *
+ **********************************************************************/
+
+typedef struct {
+  MARIA_HA *info;
+  uint keynr;
+} bulk_insert_param;
+
+
+static my_bool _ma_ck_write_tree(register MARIA_HA *info, MARIA_KEY *key)
+{
+  my_bool error;
+  uint keynr= key->keyinfo->key_nr;
+  DBUG_ENTER("_ma_ck_write_tree");
+
+  /* Store ref_length as this is always constant */
+  info->bulk_insert_ref_length= key->ref_length;
+  error= tree_insert(&info->bulk_insert[keynr], key->data,
+                     key->data_length + key->ref_length,
+                     info->bulk_insert[keynr].custom_arg) == 0;
+  DBUG_RETURN(error);
+} /* _ma_ck_write_tree */
+
+
+/* typeof(_ma_keys_compare)=qsort_cmp2 */
+
+static int keys_compare(bulk_insert_param *param, uchar *key1, uchar *key2)
+{
+  uint not_used[2];
+  return ha_key_cmp(param->info->s->keyinfo[param->keynr].seg,
+                    key1, key2, USE_WHOLE_KEY, SEARCH_SAME,
+                    not_used);
+}
+
+
+static int keys_free(void* key_arg, TREE_FREE mode, void *param_arg)
+{
+  /*
+    Probably I can use info->lastkey here, but I'm not sure,
+    and to be safe I'd better use local lastkey.
+  */
+  bulk_insert_param *param= (bulk_insert_param*)param_arg;
+  MARIA_SHARE *share= param->info->s;
+  uchar lastkey[MARIA_MAX_KEY_BUFF], *key= (uchar*)key_arg;
+  uint keylen;
+  MARIA_KEYDEF *keyinfo= share->keyinfo + param->keynr;
+  MARIA_KEY tmp_key;
+
+  switch (mode) {
+  case free_init:
+    if (share->lock_key_trees)
+    {
+      mysql_rwlock_wrlock(&keyinfo->root_lock);
+      keyinfo->version++;
+    }
+    return 0;
+  case free_free:
+    /* Note: keylen doesn't contain transid lengths */
+    keylen= _ma_keylength(keyinfo, key);
+    tmp_key.data=        lastkey;
+    tmp_key.keyinfo=     keyinfo;
+    tmp_key.data_length= keylen - share->rec_reflength;
+    tmp_key.ref_length=  param->info->bulk_insert_ref_length;
+    tmp_key.flag= (param->info->bulk_insert_ref_length ==
+                   share->rec_reflength ? 0 : SEARCH_USER_KEY_HAS_TRANSID);
+    /*
+      We have to copy key as ma_ck_write_btree may need the buffer for
+      copying middle key up if tree is growing
+    */
+    memcpy(lastkey, key, tmp_key.data_length + tmp_key.ref_length);
+    _ma_ck_write_btree(param->info, &tmp_key);
+    return 0;
+  case free_end:
+    if (share->lock_key_trees)
+      mysql_rwlock_unlock(&keyinfo->root_lock);
+    return 0;
+  }
+  return 0;
+}
+
+
+int maria_init_bulk_insert(MARIA_HA *info, size_t cache_size, ha_rows rows)
+{
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *key=share->keyinfo;
+  bulk_insert_param *params;
+  uint i, num_keys, total_keylength;
+  ulonglong key_map;
+  DBUG_ENTER("_ma_init_bulk_insert");
+  DBUG_PRINT("enter",("cache_size: %lu", (ulong) cache_size));
+
+  DBUG_ASSERT(!info->bulk_insert &&
+	      (!rows || rows >= MARIA_MIN_ROWS_TO_USE_BULK_INSERT));
+
+  maria_clear_all_keys_active(key_map);
+  for (i=total_keylength=num_keys=0 ; i < share->base.keys ; i++)
+  {
+    if (! (key[i].flag & HA_NOSAME) && (share->base.auto_key != i + 1) &&
+        maria_is_key_active(share->state.key_map, i))
+    {
+      num_keys++;
+      maria_set_key_active(key_map, i);
+      total_keylength+=key[i].maxlength+TREE_ELEMENT_EXTRA_SIZE;
+    }
+  }
+
+  if (num_keys==0 ||
+      num_keys * (size_t) MARIA_MIN_SIZE_BULK_INSERT_TREE > cache_size)
+    DBUG_RETURN(0);
+
+  if (rows && rows*total_keylength < cache_size)
+    cache_size= (size_t)rows;
+  else
+    cache_size/=total_keylength*16;
+
+  info->bulk_insert=(TREE *)
+    my_malloc(PSI_INSTRUMENT_ME, (sizeof(TREE)*share->base.keys+
+               sizeof(bulk_insert_param)*num_keys),MYF(0));
+
+  if (!info->bulk_insert)
+    DBUG_RETURN(HA_ERR_OUT_OF_MEM);
+
+  params=(bulk_insert_param *)(info->bulk_insert+share->base.keys);
+  for (i=0 ; i < share->base.keys ; i++)
+  {
+    if (maria_is_key_active(key_map, i))
+    {
+      params->info=info;
+      params->keynr=i;
+      /* Only allocate a 16'th of the buffer at a time */
+      init_tree(&info->bulk_insert[i],
+                cache_size * key[i].maxlength,
+                cache_size * key[i].maxlength, 0,
+                (qsort_cmp2) keys_compare, keys_free, (void *)params++, MYF(0));
+    }
+    else
+     info->bulk_insert[i].root=0;
+  }
+
+  DBUG_RETURN(0);
+}
+
+void maria_flush_bulk_insert(MARIA_HA *info, uint inx)
+{
+  if (info->bulk_insert)
+  {
+    if (is_tree_inited(&info->bulk_insert[inx]))
+      reset_tree(&info->bulk_insert[inx]);
+  }
+}
+
+
+int maria_end_bulk_insert(MARIA_HA *info, my_bool abort)
+{
+  int first_error= 0;
+  DBUG_ENTER("maria_end_bulk_insert");
+  if (info->bulk_insert)
+  {
+    uint i;
+    for (i=0 ; i < info->s->base.keys ; i++)
+    {
+      if (is_tree_inited(&info->bulk_insert[i]))
+      {
+        int error;
+        if (info->s->deleting)
+          reset_free_element(&info->bulk_insert[i]);
+        if ((error= delete_tree(&info->bulk_insert[i], abort)))
+        {
+          first_error= first_error ? first_error : error;
+          abort= 1;
+        }
+      }
+    }
+    my_free(info->bulk_insert);
+    info->bulk_insert= 0;
+  }
+  DBUG_RETURN(first_error);
+}
+
+
+/****************************************************************************
+  Dedicated functions that generate log entries
+****************************************************************************/
+
+
+int _ma_write_undo_key_insert(MARIA_HA *info, const MARIA_KEY *key,
+                              my_off_t *root, my_off_t new_root, LSN *res_lsn)
+{
+  MARIA_SHARE *share= info->s;
+  MARIA_KEYDEF *keyinfo= key->keyinfo;
+  uchar log_data[LSN_STORE_SIZE + FILEID_STORE_SIZE +
+                 KEY_NR_STORE_SIZE];
+  const uchar *key_value;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 2];
+  struct st_msg_to_write_hook_for_undo_key msg;
+  uint key_length;
+
+  /* Save if we need to write a clr record */
+  lsn_store(log_data, info->trn->undo_lsn);
+  key_nr_store(log_data + LSN_STORE_SIZE + FILEID_STORE_SIZE,
+               keyinfo->key_nr);
+  key_length= key->data_length + key->ref_length;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= sizeof(log_data);
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    key->data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].length= key_length;
+
+  msg.root= root;
+  msg.value= new_root;
+  msg.auto_increment= 0;
+  key_value= key->data;
+  if (share->base.auto_key == ((uint) keyinfo->key_nr + 1))
+  {
+    const HA_KEYSEG *keyseg= keyinfo->seg;
+    uchar reversed[MARIA_MAX_KEY_BUFF];
+    if (keyseg->flag & HA_SWAP_KEY)
+    {
+      /* We put key from log record to "data record" packing format... */
+      const uchar *key_ptr= key->data, *key_end= key->data + keyseg->length;
+      uchar *to= reversed + keyseg->length;
+      do
+      {
+        *--to= *key_ptr++;
+      } while (key_ptr != key_end);
+      key_value= to;
+    }
+    /* ... so that we can read it with: */
+    msg.auto_increment=
+      ma_retrieve_auto_increment(key_value, keyseg->type);
+    /* and write_hook_for_undo_key_insert() will pick this. */
+  }
+
+  return translog_write_record(res_lsn, LOGREC_UNDO_KEY_INSERT,
+                               info->trn, info,
+                               (translog_size_t)
+                               log_array[TRANSLOG_INTERNAL_PARTS + 0].length +
+                               key_length,
+                               TRANSLOG_INTERNAL_PARTS + 2, log_array,
+                               log_data + LSN_STORE_SIZE, &msg) ? -1 : 0;
+}
+
+
+/**
+  @brief Log creation of new page
+
+  @note
+    We don't have to store the page_length into the log entry as we can
+    calculate this from the length of the log entry
+
+  @retval 1   error
+  @retval 0    ok
+*/
+
+my_bool _ma_log_new(MARIA_PAGE *ma_page, my_bool root_page)
+{
+  LSN lsn;
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE * 2 + KEY_NR_STORE_SIZE
+                 +1];
+  uint page_length;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 2];
+  MARIA_HA *info= ma_page->info;
+  MARIA_SHARE *share= info->s;
+  my_off_t page= ma_page->pos / share->block_size;
+  DBUG_ENTER("_ma_log_new");
+  DBUG_PRINT("enter", ("page: %lu", (ulong) page));
+
+  DBUG_ASSERT(share->now_transactional);
+
+  /* Store address of new root page */
+  page_store(log_data + FILEID_STORE_SIZE, page);
+
+  /* Store link to next unused page */
+  if (info->key_del_used == 2)
+    page= 0;                                    /* key_del not changed */
+  else
+    page= ((share->key_del_current == HA_OFFSET_ERROR) ? IMPOSSIBLE_PAGE_NO :
+           share->key_del_current / share->block_size);
+
+  page_store(log_data + FILEID_STORE_SIZE + PAGE_STORE_SIZE, page);
+  key_nr_store(log_data + FILEID_STORE_SIZE + PAGE_STORE_SIZE*2,
+               ma_page->keyinfo->key_nr);
+  log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE*2 + KEY_NR_STORE_SIZE]=
+    (uchar) root_page;
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= sizeof(log_data);
+
+  page_length= ma_page->size - LSN_STORE_SIZE;
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].str=   ma_page->buff + LSN_STORE_SIZE;
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].length= page_length;
+
+  /* Remember new page length for future log entires for same page */
+  ma_page->org_size= ma_page->size;
+
+  if (translog_write_record(&lsn, LOGREC_REDO_INDEX_NEW_PAGE,
+                            info->trn, info,
+                            (translog_size_t)
+                            (sizeof(log_data) + page_length),
+                            TRANSLOG_INTERNAL_PARTS + 2, log_array,
+                            log_data, NULL))
+    DBUG_RETURN(1);
+  DBUG_RETURN(0);
+}
+
+
+/**
+   @brief
+   Log when some part of the key page changes
+*/
+
+my_bool _ma_log_change(MARIA_PAGE *ma_page, const uchar *key_pos, uint length,
+                       enum en_key_debug debug_marker __attribute__((unused)))
+{
+  LSN lsn;
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE + 2 + 6 + 7], *log_pos;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 4];
+  uint offset= (uint) (key_pos - ma_page->buff), translog_parts;
+  MARIA_HA *info= ma_page->info;
+  my_off_t page= ma_page->pos / info->s->block_size;
+  DBUG_ENTER("_ma_log_change");
+  DBUG_PRINT("enter", ("page: %lu  length: %u", (ulong) page, length));
+
+  DBUG_ASSERT(info->s->now_transactional);
+  DBUG_ASSERT(offset + length <= ma_page->size);
+  DBUG_ASSERT(ma_page->org_size == ma_page->size);
+
+  /* Store address of new root page */
+  page= ma_page->pos / info->s->block_size;
+  page_store(log_data + FILEID_STORE_SIZE, page);
+  log_pos= log_data+ FILEID_STORE_SIZE + PAGE_STORE_SIZE;
+
+#ifdef EXTRA_DEBUG_KEY_CHANGES
+  (*log_pos++)= KEY_OP_DEBUG;
+  (*log_pos++)= debug_marker;
+#endif
+
+  log_pos[0]= KEY_OP_OFFSET;
+  int2store(log_pos+1, offset);
+  log_pos[3]= KEY_OP_CHANGE;
+  int2store(log_pos+4, length);
+  log_pos+= 6;
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= (log_pos - log_data);
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    key_pos;
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].length= length;
+  translog_parts= 2;
+
+  _ma_log_key_changes(ma_page,
+                      log_array + TRANSLOG_INTERNAL_PARTS + translog_parts,
+                      log_pos, &length, &translog_parts);
+
+  if (translog_write_record(&lsn, LOGREC_REDO_INDEX,
+                            info->trn, info,
+                            (translog_size_t) (log_pos - log_data) + length,
+                            TRANSLOG_INTERNAL_PARTS + translog_parts,
+                            log_array, log_data, NULL))
+    DBUG_RETURN(1);
+  DBUG_RETURN(0);
+}
+
+
+/**
+   @brief Write log entry for page splitting
+
+   @fn     _ma_log_split()
+   @param
+     ma_page		Page that is changed
+     org_length	        Original length of page. Can be bigger than block_size
+                        for block that overflowed
+     new_length		New length of page
+     key_pos		Where key is inserted on page (may be 0 if no key)
+     key_length		Number of bytes changed at key_pos
+     move_length	Number of bytes moved at key_pos to make room for key
+     prefix_or_suffix   KEY_OP_NONE	    Ignored
+   			KEY_OP_ADD_PREFIX   Add data to start of page
+			KEY_OP_ADD_SUFFIX   Add data to end of page
+     data		What data was added
+     data_length	Number of bytes added first or last
+     changed_length	Number of bytes changed first or last.
+
+   @note
+     Write log entry for page that has got a key added to the page under
+     one and only one of the following senarios:
+     - Page is shortened from end
+     - Data is added to end of page
+     - Data added at front of page
+*/
+
+static my_bool _ma_log_split(MARIA_PAGE *ma_page,
+                             uint org_length, uint new_length,
+                             const uchar *key_pos, uint key_length,
+                             int move_length, enum en_key_op prefix_or_suffix,
+                             const uchar *data, uint data_length,
+                             uint changed_length)
+{
+  LSN lsn;
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE + 2 + 2 + 3+3+3+3+3+2 +7];
+  uchar *log_pos;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 6];
+  uint offset= (uint) (key_pos - ma_page->buff);
+  uint translog_parts, extra_length;
+  MARIA_HA *info= ma_page->info; 
+  my_off_t page= ma_page->pos / info->s->block_size;
+  DBUG_ENTER("_ma_log_split");
+  DBUG_PRINT("enter", ("page: %lu  org_length: %u  new_length: %u",
+                       (ulong) page, org_length, new_length));
+
+  DBUG_ASSERT(changed_length >= data_length);
+  DBUG_ASSERT(org_length <= info->s->max_index_block_size);
+  DBUG_ASSERT(new_length == ma_page->size);
+  DBUG_ASSERT(org_length == ma_page->org_size);
+
+  log_pos= log_data + FILEID_STORE_SIZE;
+  page_store(log_pos, page);
+  log_pos+= PAGE_STORE_SIZE;
+
+#ifdef EXTRA_DEBUG_KEY_CHANGES
+  (*log_pos++)= KEY_OP_DEBUG;
+  (*log_pos++)= KEY_OP_DEBUG_LOG_SPLIT;
+#endif
+
+  /* Store keypage_flag */
+  *log_pos++= KEY_OP_SET_PAGEFLAG;
+  *log_pos++= _ma_get_keypage_flag(info->s, ma_page->buff);
+
+  if (new_length <= offset || !key_pos)
+  {
+    /*
+      Page was split before inserted key. Write redo entry where
+      we just cut current page at page_length
+    */
+    uint length_offset= org_length - new_length;
+    log_pos[0]= KEY_OP_DEL_SUFFIX;
+    int2store(log_pos+1, length_offset);
+    log_pos+= 3;
+    translog_parts= 1;
+    extra_length= 0;
+    DBUG_ASSERT(data_length == 0);
+  }
+  else
+  {
+    /* Key was added to page which was split after the inserted key */
+    uint max_key_length;
+
+    /*
+      Handle case when split happened directly after the newly inserted key.
+    */
+    max_key_length= new_length - offset;
+    extra_length= MY_MIN(key_length, max_key_length);
+    if (offset + move_length > new_length)
+    {
+      /* This is true when move_length includes changes for next packed key */
+      move_length= new_length - offset;
+    }
+
+    if ((int) new_length < (int) (org_length + move_length + data_length))
+    {
+      /* Shorten page */
+      uint diff= org_length + move_length + data_length - new_length;
+      log_pos[0]= KEY_OP_DEL_SUFFIX;
+      int2store(log_pos + 1, diff);
+      log_pos+= 3;
+      DBUG_ASSERT(data_length == 0);            /* Page is shortened */
+      DBUG_ASSERT(offset <= org_length - diff);
+    }
+    else
+    {
+      DBUG_ASSERT(new_length == org_length + move_length + data_length);
+      DBUG_ASSERT(offset <= org_length);
+    }
+
+    log_pos[0]= KEY_OP_OFFSET;
+    int2store(log_pos+1, offset);
+    log_pos+= 3;
+
+    if (move_length)
+    {
+      log_pos[0]= KEY_OP_SHIFT;
+      int2store(log_pos+1, move_length);
+      log_pos+= 3;
+    }
+
+    log_pos[0]= KEY_OP_CHANGE;
+    int2store(log_pos+1, extra_length);
+    log_pos+= 3;
+
+    /* Point to original inserted key data */
+    if (prefix_or_suffix == KEY_OP_ADD_PREFIX)
+      key_pos+= data_length;
+
+    translog_parts= 2;
+    log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    key_pos;
+    log_array[TRANSLOG_INTERNAL_PARTS + 1].length= extra_length;
+  }
+
+  if (data_length)
+  {
+    /* Add prefix or suffix */
+    log_pos[0]= prefix_or_suffix;
+    int2store(log_pos+1, data_length);
+    log_pos+= 3;
+    if (prefix_or_suffix == KEY_OP_ADD_PREFIX)
+    {
+      int2store(log_pos+1, changed_length);
+      log_pos+= 2;
+      data_length= changed_length;
+    }
+    log_array[TRANSLOG_INTERNAL_PARTS + translog_parts].str=    data;
+    log_array[TRANSLOG_INTERNAL_PARTS + translog_parts].length= data_length;
+    translog_parts++;
+    extra_length+= data_length;
+  }
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= (uint) (log_pos -
+                                                         log_data);
+
+  _ma_log_key_changes(ma_page,
+                      log_array + TRANSLOG_INTERNAL_PARTS + translog_parts,
+                      log_pos, &extra_length, &translog_parts);
+  /* Remember new page length for future log entires for same page */
+  ma_page->org_size= ma_page->size;
+
+  DBUG_RETURN(translog_write_record(&lsn, LOGREC_REDO_INDEX,
+                                    info->trn, info,
+                                    (translog_size_t)
+                                    log_array[TRANSLOG_INTERNAL_PARTS +
+                                              0].length + extra_length,
+                                    TRANSLOG_INTERNAL_PARTS + translog_parts,
+                                    log_array, log_data, NULL));
+}
+
+
+/**
+   @brief
+   Write log entry for page that has got a key added to the page
+   and page is shortened from start of page
+
+   @fn _ma_log_del_prefix()
+   @param info		Maria handler
+   @param page		Page number
+   @param buff		Page buffer
+   @param org_length	Length of buffer when read
+   @param new_length	Final length
+   @param key_pos	Where on page buffer key was added. This is position
+			before prefix was removed
+   @param key_length    How many bytes was changed at 'key_pos'
+   @param move_length   How many bytes was moved up when key was added
+
+   @return
+   @retval  0  ok
+   @retval  1  error
+*/
+
+static my_bool _ma_log_del_prefix(MARIA_PAGE *ma_page,
+                                  uint org_length, uint new_length,
+                                  const uchar *key_pos, uint key_length,
+                                  int move_length)
+{
+  LSN lsn;
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE + 2 + 2 + 12 + 7];
+  uchar *log_pos;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 4];
+  uint offset= (uint) (key_pos - ma_page->buff);
+  uint diff_length= org_length + move_length - new_length;
+  uint translog_parts, extra_length;
+  MARIA_HA *info= ma_page->info;
+  my_off_t page= ma_page->pos / info->s->block_size;
+  DBUG_ENTER("_ma_log_del_prefix");
+  DBUG_PRINT("enter", ("page: %lu  org_length: %u  new_length: %u",
+                       (ulong) page, org_length, new_length));
+
+  DBUG_ASSERT((int) diff_length > 0);
+  DBUG_ASSERT(ma_page->org_size == org_length);
+  DBUG_ASSERT(ma_page->size == new_length);
+
+  log_pos= log_data + FILEID_STORE_SIZE;
+  page_store(log_pos, page);
+  log_pos+= PAGE_STORE_SIZE;
+
+  translog_parts= 1;
+  extra_length= 0;
+
+#ifdef EXTRA_DEBUG_KEY_CHANGES
+  *log_pos++= KEY_OP_DEBUG;
+  *log_pos++= KEY_OP_DEBUG_LOG_DEL_PREFIX;
+#endif
+
+  /* Store keypage_flag */
+  *log_pos++= KEY_OP_SET_PAGEFLAG;
+  *log_pos++= _ma_get_keypage_flag(info->s, ma_page->buff);
+
+  if (offset < diff_length + info->s->keypage_header)
+  {
+    /*
+      Key is not anymore on page. Move data down, but take into account that
+      the original page had grown with 'move_length bytes'
+    */
+    DBUG_ASSERT(offset + key_length <= diff_length + info->s->keypage_header);
+
+    log_pos[0]= KEY_OP_DEL_PREFIX;
+    int2store(log_pos+1, diff_length - move_length);
+    log_pos+= 3;
+  }
+  else
+  {
+    /*
+      Correct position to key, as data before key has been delete and key
+      has thus been moved down
+    */
+    offset-= diff_length;
+    key_pos-= diff_length;
+
+    /* Move data down */
+    log_pos[0]= KEY_OP_DEL_PREFIX;
+    int2store(log_pos+1, diff_length);
+    log_pos+= 3;
+
+    log_pos[0]= KEY_OP_OFFSET;
+    int2store(log_pos+1, offset);
+    log_pos+= 3;
+
+    if (move_length)
+    {
+      log_pos[0]= KEY_OP_SHIFT;
+      int2store(log_pos+1, move_length);
+      log_pos+= 3;
+    }
+    log_pos[0]= KEY_OP_CHANGE;
+    int2store(log_pos+1, key_length);
+    log_pos+= 3;
+    log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    key_pos;
+    log_array[TRANSLOG_INTERNAL_PARTS + 1].length= key_length;
+    translog_parts= 2;
+    extra_length= key_length;
+  }
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= (uint) (log_pos -
+                                                         log_data);
+  _ma_log_key_changes(ma_page,
+                      log_array + TRANSLOG_INTERNAL_PARTS + translog_parts,
+                      log_pos, &extra_length, &translog_parts);
+  /* Remember new page length for future log entires for same page */
+  ma_page->org_size= ma_page->size;
+
+  DBUG_RETURN(translog_write_record(&lsn, LOGREC_REDO_INDEX,
+                                    info->trn, info,
+                                    (translog_size_t)
+                                    log_array[TRANSLOG_INTERNAL_PARTS +
+                                              0].length + extra_length,
+                                    TRANSLOG_INTERNAL_PARTS + translog_parts,
+                                    log_array, log_data, NULL));
+}
+
+
+/**
+   @brief
+   Write log entry for page that has got data added first and
+   data deleted last. Old changed key may be part of page
+*/
+
+static my_bool _ma_log_key_middle(MARIA_PAGE *ma_page,
+                                  uint new_length,
+                                  uint data_added_first,
+                                  uint data_changed_first,
+                                  uint data_deleted_last,
+                                  const uchar *key_pos,
+                                  uint key_length, int move_length)
+{
+  LSN lsn;
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE + 2 + 2 + 3+5+3+3+3 + 7];
+  uchar *log_pos;
+  LEX_CUSTRING log_array[TRANSLOG_INTERNAL_PARTS + 6];
+  uint key_offset;
+  uint translog_parts, extra_length;
+  MARIA_HA *info= ma_page->info;
+  my_off_t page= ma_page->pos / info->s->block_size;
+  DBUG_ENTER("_ma_log_key_middle");
+  DBUG_PRINT("enter", ("page: %lu", (ulong) page));
+
+  DBUG_ASSERT(ma_page->size == new_length);
+
+  /* new place of key after changes */
+  key_pos+= data_added_first;
+  key_offset= (uint) (key_pos - ma_page->buff);
+  if (key_offset < new_length)
+  {
+    /* key is on page; Calculate how much of the key is there */
+    uint max_key_length= new_length - key_offset;
+    if (max_key_length < key_length)
+    {
+      /* Key is last on page */
+      key_length= max_key_length;
+      move_length= 0;
+    }
+    /*
+      Take into account that new data was added as part of original key
+      that also needs to be removed from page
+    */
+    data_deleted_last+= move_length;
+  }
+
+  /* First log changes to page */
+  log_pos= log_data + FILEID_STORE_SIZE;
+  page_store(log_pos, page);
+  log_pos+= PAGE_STORE_SIZE;
+
+#ifdef EXTRA_DEBUG_KEY_CHANGES
+  *log_pos++= KEY_OP_DEBUG;
+  *log_pos++= KEY_OP_DEBUG_LOG_MIDDLE;
+#endif
+
+  /* Store keypage_flag */
+  *log_pos++= KEY_OP_SET_PAGEFLAG;
+  *log_pos++= _ma_get_keypage_flag(info->s, ma_page->buff);
+
+  log_pos[0]= KEY_OP_DEL_SUFFIX;
+  int2store(log_pos+1, data_deleted_last);
+  log_pos+= 3;
+
+  log_pos[0]= KEY_OP_ADD_PREFIX;
+  int2store(log_pos+1, data_added_first);
+  int2store(log_pos+3, data_changed_first);
+  log_pos+= 5;
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= (uint) (log_pos -
+                                                         log_data);
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    (ma_page->buff +
+                                                  info->s->keypage_header);
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].length= data_changed_first;
+  translog_parts= 2;
+  extra_length= data_changed_first;
+
+  /* If changed key is on page, log those changes too */
+
+  if (key_offset < new_length)
+  {
+    uchar *start_log_pos= log_pos;
+
+    log_pos[0]= KEY_OP_OFFSET;
+    int2store(log_pos+1, key_offset);
+    log_pos+= 3;
+    if (move_length)
+    {
+      log_pos[0]= KEY_OP_SHIFT;
+      int2store(log_pos+1, move_length);
+      log_pos+= 3;
+    }
+    log_pos[0]= KEY_OP_CHANGE;
+    int2store(log_pos+1, key_length);
+    log_pos+= 3;
+
+    log_array[TRANSLOG_INTERNAL_PARTS + 2].str=    start_log_pos;
+    log_array[TRANSLOG_INTERNAL_PARTS + 2].length= (uint) (log_pos -
+                                                           start_log_pos);
+
+    log_array[TRANSLOG_INTERNAL_PARTS + 3].str=    key_pos;
+    log_array[TRANSLOG_INTERNAL_PARTS + 3].length= key_length;
+    translog_parts+=2;
+    extra_length+= (uint) (log_array[TRANSLOG_INTERNAL_PARTS + 2].length +
+                           key_length);
+  }
+
+  _ma_log_key_changes(ma_page,
+                      log_array + TRANSLOG_INTERNAL_PARTS + translog_parts,
+                      log_pos, &extra_length, &translog_parts);
+  /* Remember new page length for future log entires for same page */
+  ma_page->org_size= ma_page->size;
+
+  DBUG_RETURN(translog_write_record(&lsn, LOGREC_REDO_INDEX,
+                                    info->trn, info,
+                                    (translog_size_t)
+                                    (log_array[TRANSLOG_INTERNAL_PARTS +
+                                               0].length + extra_length),
+                                    TRANSLOG_INTERNAL_PARTS + translog_parts,
+                                    log_array, log_data, NULL));
+}
+
+
+#ifdef NOT_NEEDED
+
+/**
+   @brief
+   Write log entry for page that has got data added first and
+   data deleted last
+*/
+
+static my_bool _ma_log_middle(MARIA_PAGE *ma_page,
+                              uint data_added_first, uint data_changed_first,
+                              uint data_deleted_last)
+{
+  LSN lsn;
+  LEX_STRING log_array[TRANSLOG_INTERNAL_PARTS + 4];
+  uchar log_data[FILEID_STORE_SIZE + PAGE_STORE_SIZE + 3 + 5 + 7], *log_pos;
+  MARIA_HA *info= ma_page->info;
+  my_off_t page= ma_page->page / info->s->block_size;
+  uint translog_parts, extra_length;
+  DBUG_ENTER("_ma_log_middle");
+  DBUG_PRINT("enter", ("page: %lu", (ulong) page));
+
+  DBUG_ASSERT(ma_page->org_size + data_added_first - data_deleted_last ==
+              ma_page->size);
+
+  log_pos= log_data + FILEID_STORE_SIZE;
+  page_store(log_pos, page);
+  log_pos+= PAGE_STORE_SIZE;
+
+  log_pos[0]= KEY_OP_DEL_PREFIX;
+  int2store(log_pos+1, data_deleted_last);
+  log_pos+= 3;
+
+  log_pos[0]= KEY_OP_ADD_PREFIX;
+  int2store(log_pos+1, data_added_first);
+  int2store(log_pos+3, data_changed_first);
+  log_pos+= 5;
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].str=    log_data;
+  log_array[TRANSLOG_INTERNAL_PARTS + 0].length= (uint) (log_pos -
+                                                         log_data);
+
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].str=    ((char*) buff +
+                                                  info->s->keypage_header);
+  log_array[TRANSLOG_INTERNAL_PARTS + 1].length= data_changed_first;
+  translog_parts= 2;
+  extra_length= data_changed_first;
+
+  _ma_log_key_changes(ma_page,
+                      log_array + TRANSLOG_INTERNAL_PARTS + translog_parts,
+                      log_pos, &extra_length, &translog_parts);
+  /* Remember new page length for future log entires for same page */
+  ma_page->org_size= ma_page->size;
+
+  DBUG_RETURN(translog_write_record(&lsn, LOGREC_REDO_INDEX,
+                                    info->trn, info,
+                                    (translog_size_t)
+                                    log_array[TRANSLOG_INTERNAL_PARTS +
+                                              0].length + extra_length,
+                                    TRANSLOG_INTERNAL_PARTS + translog_parts,
+                                    log_array, log_data, NULL));
+}
+#endif