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86 lines
3 KiB
C
86 lines
3 KiB
C
/* Copyright (c) 2000, 2001, 2005, 2006 MySQL AB, 2009 Sun Microsystems, Inc.
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Use is subject to license terms.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
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#include "myrg_def.h"
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ulonglong myrg_position(MYRG_INFO *info)
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{
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MYRG_TABLE *current_table;
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if (!(current_table = info->current_table) &&
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info->open_tables != info->end_table)
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current_table = info->open_tables;
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return current_table ?
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current_table->table->lastpos + current_table->file_offset :
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~(ulonglong) 0;
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}
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int myrg_status(MYRG_INFO *info,register MYMERGE_INFO *x,int flag)
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{
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MYRG_TABLE *current_table;
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DBUG_ENTER("myrg_status");
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if (!(current_table = info->current_table) &&
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info->open_tables != info->end_table)
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current_table = info->open_tables;
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x->recpos = info->current_table ?
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info->current_table->table->lastpos + info->current_table->file_offset :
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(ulong) -1L;
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if (flag != HA_STATUS_POS)
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{
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MYRG_TABLE *file;
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info->records=info->del=info->data_file_length=0;
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for (file=info->open_tables ; file != info->end_table ; file++)
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{
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file->file_offset=info->data_file_length;
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info->data_file_length+=file->table->s->state.state.data_file_length;
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info->records+=file->table->s->state.state.records;
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info->del+=file->table->s->state.state.del;
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DBUG_PRINT("info2",("table: %s, offset: %lu",
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file->table->filename,(ulong) file->file_offset));
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}
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x->records= info->records;
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x->deleted= info->del;
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x->data_file_length= info->data_file_length;
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x->reclength= info->reclength;
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x->options= info->options;
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if (current_table)
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{
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/*
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errkey is set to the index number of the myisam tables. But
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since the MERGE table can have less keys than the MyISAM
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tables, errkey cannot be be used as an index into the key_info
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on the server. This value will be overwritten with MAX_KEY by
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the MERGE engine.
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*/
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x->errkey= current_table->table->errkey;
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/*
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Calculate the position of the duplicate key to be the sum of the
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offset of the myisam file and the offset into the file at which
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the duplicate key is located.
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*/
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x->dupp_key_pos= current_table->file_offset + current_table->table->dupp_key_pos;
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}
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else
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{
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x->errkey= 0;
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x->dupp_key_pos= 0;
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}
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x->rec_per_key = info->rec_per_key_part;
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}
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DBUG_RETURN(0);
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}
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