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352 lines
19 KiB
C++
352 lines
19 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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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 Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/******************************************************************************************
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* $Id: we_index.h 4450 2013-01-21 14:13:24Z rdempsey $
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*
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******************************************************************************************/
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/** @file */
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#ifndef _WE_INDEX_H_
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#define _WE_INDEX_H_
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#include <bitset>
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#include "we_type.h"
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/** Namespace WriteEngine */
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namespace WriteEngine
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{
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/*****************************************************
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* index definition
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******************************************************/
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const int IDX_BITTEST_SIZE = 10; /** @brief The bit size of bit test */
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const int IDX_GROUP_SIZE = 3; /** @brief The bit size of group */
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const int IDX_INSTRU_SIZE = 4; /** @brief The bit size of instruction */
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const int IDX_PTR_SIZE = 46; /** @brief The bit size of address pointer */
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const int IDX_TYPE_SIZE = 3; /** @brief The bit size of type */
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const int IDX_BITMAP_SUBBLOCK_NO = 1; /** @brief Subblock 1 of root block is for bitmap pointer*/
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const int IDX_MAX_TREE_LEVEL = 128; /** @brief The maximum depth of a tree */
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const int IDX_MAX_MULTI_COL_BIT = 256; /** @brief The maximum bits of a multi-column tree (256 bit)*/
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const int IDX_MAX_MULTI_COL_IDX_LEVEL = 52; /** @brief The maximum depth of a multi-column tree */
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const int IDX_MAX_MULTI_COL_IDX_NUM = 64; /** @brief The maximum number of columns for a multi-column index */
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const int MAX_IDX_RID = 1024; /** @brief Maximum index rids for one shot */
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const int IDX_DEFAULT_READ_ROW = 10000; /** @brief Default number of rows for one read for index */
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// todo: need to move a higher level share file for dictionary
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const int RID_SIZE = 46;
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// const int OID_SIZE = 24; /** @brief The bit size of object id */
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const int FBO_SIZE = 36; /** @brief The bit size of file block offset */
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const int SBID_SIZE = 5; /** @brief The bit size of sub block id */
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const int ENTRY_SIZE = 5; /** @brief The bit size of entry location with a sub block */
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const int LIST_SIZE_TYPE = 0;
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const int LIST_RID_TYPE = 3;
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const int LIST_NOT_USED_TYPE = 7;
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const int LIST_HDR_SIZE = 32;
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const int LIST_SUBBLOCK_TYPE = 4 ;
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const int LIST_BLOCK_TYPE = 5 ;
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const int LIST_LLP_TYPE = 6 ;
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const int SUBBLOCK_TOTAL_BYTES = 256;
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const int LIST_SUB_LLP_POS = 31;
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const int LIST_LAST_LBID_POS = 30;
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const int LIST_BLOCK_LLP_POS = 1023;
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const int MAX_BLOCK_ENTRY = 1024;
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const int MAX_SUB_RID_CNT = 30;
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const int MAX_BLK_RID_CNT = 1023;
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const int MAX_BLK_NARRAY_RID_CNT = 1018;
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const int LBID_SBID_ENTRY = 46;
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const int RID_COUNT_SIZE = 10;
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const int CUR_BLK_POS_WIDTH = 2;
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const int LLP_STATUS_WIDTH = 2;
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const int LIST_ENTRY_WIDTH = 8;
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const int LIST_BLK_LLP_ENTRY_WIDTH= 48;
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const int BEGIN_LIST_BLK_LLP_POS = 1018;
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const int NEXT_BLK_PTR_OFFSET = 5;
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const int PARENT_PTR_OFFSET = 4;
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const int TOTAL_NUM_ARRAY_PTR = 4;
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const int ARRAY_LLP_EXIST = 1;
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const int LLP_NOT_FULL = 0;
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const int LLP_FULL = 1;
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const int TOTAL_CUR_LEVEL = 10;
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const int CUR_LEVEL_POS_WIDTH = 20;
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const uint64_t INVALID_KEY = -1LL; /** @brief Invalid number */
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/*****************************************************
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* mask definition
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******************************************************/
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const int BIT_MASK_ARRAY[] = { 0x0,
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0x01, /** @brief 1 bit mask */
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0x03, /** @brief 2 bit mask */
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0x07, /** @brief 3 bit mask */
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0x0F, /** @brief 4 bit mask */
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0x1F, /** @brief 5 bit mask */
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0x3F /** @brief 6 bit mask */
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};
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/************************************************************************
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* Type enumerations
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************************************************************************/
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enum IdxTreeEntryType { /** @brief Index tree entry types */
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EMPTY_ENTRY = 0, /** @brief Empty entry */
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UNIQUE_VAL = 7, /** @brief Unique value */
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EMPTY_LIST = 1, /** @brief Empty list pointer entry */
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EMPTY_PTR = 2, /** @brief Empty pointer entry */
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BIT_TEST = 3, /** @brief Bit test entry */
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LEAF_LIST = 4, /** @brief Leaf list pointer */
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BITMAP_PTR = 5, /** @brief Bitmap pointer */
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// SORT_LIST = 5, /** @brief Sorted list pointer */
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MULTI_COL = 6 /** @brief Multi-column index pointer */
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};
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enum IdxTreeGroupType { /** @brief Index tree group types */
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ENTRY_1 = 0, /** @brief 1 entry per group */
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ENTRY_2 = 1, /** @brief 2 entry per group */
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ENTRY_4 = 2, /** @brief 4 entry per group */
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ENTRY_8 = 3, /** @brief 8 entry per group */
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ENTRY_16 = 4, /** @brief 16 entry per group */
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ENTRY_32 = 5, /** @brief 32 entry per group */
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ENTRY_BLK = 6 /** @brief 1k entry per group */
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};
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enum IdxBitCompareType { /** @brief Index bit compare types */
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BIT_5 = 0, /** @brief 5-bit compare */
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BIT_10 = 1 /** @brief 10-bit compare */
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};
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enum IdxFreeMgrType { /** @brief Index free manager types */
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TREE = 0, /** @brief Index tree type */
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LIST = 1 /** @brief Index list type */
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};
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/************************************************************************
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* @brief index defintions
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************************************************************************/
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 12; /** @brief spare bits */
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uint64_t group : IDX_GROUP_SIZE; /** @brief entry group type */
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// The following is related to ptr
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uint64_t fbo : FBO_SIZE; /** @brief file block offset */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxStartSubBlockEntry; /** @brief Index start block entry structure */
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 2; /** @brief spare bits */
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uint64_t group : IDX_GROUP_SIZE; /** @brief entry group type */
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// The following is related to ptr
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uint64_t spare2 : 10; /** @brief spare bits */
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uint64_t fbo : FBO_SIZE; /** @brief file block offset */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxEmptyListEntry; /** @brief Index empty list entry structure */
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 15; /** @brief spare bits */
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// The following is related to ptr
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uint64_t fbo : FBO_SIZE; /** @brief file block offset */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxBitmapPointerEntry; /** @brief Index bitmap pointer entry structure */
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t bitTest : IDX_BITTEST_SIZE; /** @brief index bittest */
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uint64_t group : IDX_GROUP_SIZE; /** @brief entry group type */
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uint64_t bitCompare : 1;
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uint64_t spare : 1; /** @brief spare bits */
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// The following is related to ptr
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uint64_t fbo : FBO_SIZE; /** @brief file block offset */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxBitTestEntry; /** @brief Index bit test entry structure */
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 15; /** @brief spare bits */
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// The following is related to ptr
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uint64_t fbo : FBO_SIZE; /** @brief file block offset */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxTreePointerEntry; /** @brief Index tree pointer entry structure */
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/************************************************************************
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* @brief index list node defintions
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************************************************************************/
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type 3 */
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uint64_t spare : 15; /** @brief spare bits */
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RID rid : RID_SIZE; /** @brief row id */
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} IdxRidListEntry; /** @brief Index rid list entry structure */
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 5;
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uint64_t count : RID_COUNT_SIZE; /** the count of rids on the current blk */
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uint64_t llp : LBID_SBID_ENTRY; /** @brief size */
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} IdxRidListPtr;
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 5;
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uint64_t count : RID_COUNT_SIZE; /** the count of rids on the current blk */
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uint64_t lbid : FBO_SIZE; /** @brief size */
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uint64_t sbid : SBID_SIZE; /** @brief sub block id */
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uint64_t entry : ENTRY_SIZE; /** @brief entry within sub block */
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} IdxRidLastListPtr;
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 13;
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uint64_t llpStat : LLP_STATUS_WIDTH; /** llp status */
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uint64_t childLbid : FBO_SIZE; /** @brief file block offset */
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uint64_t spare2 : 10;
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} IdxRidChildListPtr;
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type 0 or 6 */
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uint64_t spare : 5;
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uint64_t count : RID_COUNT_SIZE; /** the count of rids on the current blk */
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uint64_t nextLbid : FBO_SIZE; /** @brief file block offset */
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uint64_t curLevel : TOTAL_CUR_LEVEL;
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} IdxRidNextListPtr;
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type 6*/
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uint64_t spare : 3; /** @brief spare bits */
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uint64_t curLevelPos : CUR_LEVEL_POS_WIDTH;
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uint64_t curBlkPos : CUR_BLK_POS_WIDTH; /** the position of current blk */
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uint64_t parentLbid : FBO_SIZE; /** @brief file block offset */
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} IdxRidParentListPtr;
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typedef struct {
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IdxRidChildListPtr childIdxRidListPtr[4];
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IdxRidParentListPtr parentIdxListPtr;
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IdxRidNextListPtr nextIdxListPtr;
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} IdxRidListArrayPtr;
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/************************************************************************
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* @brief index list header defintions
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************************************************************************/
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 15; /** @brief spare bits */
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uint64_t size : RID_SIZE; /** @brief size */
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} IdxRidListHdrSize;
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typedef struct {
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uint64_t type : IDX_TYPE_SIZE; /** @brief entry type */
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uint64_t spare : 15; /** @brief spare bits */
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uint64_t llp : RID_SIZE; /** @brief size */
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} IdxRidListHdrPtr;
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typedef struct {
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IdxRidListHdrSize idxRidListSize;
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uint64_t key;
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IdxRidListEntry firstIdxRidListEntry;
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IdxRidListHdrPtr nextIdxRidListPtr;
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} IdxRidListHdr;
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typedef struct {
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uint64_t part1 : 15; /** @brief entry type */
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uint64_t part2 : 15; /** @brief spare bits */
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uint64_t spare : 34; /** @brief size */
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} IdxRidListOffSet;
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/************************************************************************
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* @brief index tree node defintions
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************************************************************************/
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typedef struct {
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IdxBitTestEntry next; /** @brief next in the node */
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IdxBitTestEntry current; /** @brief current addr */
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uint16_t level; /** @brief tree level */
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uint16_t allocCount; /** @brief allocated entry cound from free mgr */
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uint16_t useCount; /** @brief actual use entry count */
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uint16_t offset; /** @brief entry offset */
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bool used; /** @brief used flag */
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} IdxTreeNode; /** @brief Index tree node */
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typedef struct {
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IdxTreeNode node[IDX_MAX_TREE_LEVEL]; /** @brief node array */
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uint16_t maxLevel; /** @brief max level */
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RID rid; /** @brief current row id */
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uint64_t key; /** @brief current key */
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uint16_t width; /** @brief current width */
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} IdxTree; /** @brief Index tree */
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struct IdxTreeCacheNode {
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RID rid; /** @brief RID */
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uint64_t key; /** @brief Key */
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IdxEmptyListEntry entry; /** @brief List pointer */
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bool used; /** @brief Used flag */
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IdxTreeCacheNode() { used = false; }
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};
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struct IdxMultiColKey {
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std::bitset<IDX_MAX_MULTI_COL_BIT> bitSet; /** @brief BitArray for all bits */
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std::bitset<IDX_MAX_MULTI_COL_BIT> curBitset;/** @brief Current working column */
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std::bitset<IDX_MAX_MULTI_COL_BIT> curMask; /** @brief Current bitset mask */
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unsigned char keyBuf[IDX_MAX_MULTI_COL_BIT/8]; /** @brief Key buffer */
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int curLevel; /** @brief Current index level */
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int maxLevel; /** @brief Maximum index level */
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int totalBit; /** @brief Total bits */
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int testbitArray[IDX_MAX_MULTI_COL_IDX_LEVEL]; /** @brief Test bit array */
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void clear() { bitSet.reset(); curBitset.reset(); curMask.reset();
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curLevel = maxLevel = 0; totalBit = 0;
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memset( testbitArray, 0, IDX_MAX_MULTI_COL_IDX_LEVEL); memset( keyBuf, 0, IDX_MAX_MULTI_COL_BIT/8 );
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curMask = 0x1F; curMask = curMask << (IDX_MAX_MULTI_COL_BIT - 5);
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}
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IdxMultiColKey() { clear(); }
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};
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struct IdxMultiRid {
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RID* ridArray; /** @brief RID array */
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int totalRid; /** @brief Total number of row id */
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IdxMultiRid() { totalRid = 0; ridArray = NULL; }
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void setMultiRid( RID* rids, const int size ) {
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totalRid = size;
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ridArray = rids;
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/* ridArray = new RID[size];
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memcpy( ridArray, rids, size * sizeof( RID ) ); */
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}
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void clearMultiRid() { /*if( ridArray != NULL ) delete [] ridArray; ridArray = NULL;*/ } // we don't want to get into this mem business
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};
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struct IdxLoadParam {
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File sourceFile; /** @brief Source file contatin values */
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OID indexTreeOid; /** @brief Target index tree oid */
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OID indexListOid; /** @brief Target index list oid */
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execplan::CalpontSystemCatalog::ColDataType indexColDataType; /** @brief Target index column type */
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int indexWidth; /** @brief Target index width */
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int maxLoadRow; /** @brief Max rows for one load */
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void setIdxLoadParam( const OID treeOid, const OID listOid, const execplan::CalpontSystemCatalog::ColDataType colDataType, const int width, const int maxRow )
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{ indexTreeOid = treeOid; indexListOid = listOid; indexColDataType = colDataType;
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indexWidth = width; maxLoadRow = maxRow; }
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bool isValid() { return indexTreeOid && indexListOid && indexWidth && maxLoadRow; }
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IdxLoadParam() { indexTreeOid = indexListOid = indexWidth = maxLoadRow = 0; }
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};
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} //end of namespace
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#endif // _WE_INDEX_H_
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