94 lines
2.7 KiB
C
94 lines
2.7 KiB
C
/*
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* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
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*
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* This program is free software: you can use, redistribute, and/or modify
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* it under the terms of the GNU Affero General Public License, version 3
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* or later ("AGPL"), as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _TD_QUERY_H_
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#define _TD_QUERY_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "tarray.h"
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#include "thash.h"
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typedef SVgroupListRspMsg SVgroupListInfo;
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typedef struct STableComInfo {
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uint8_t numOfTags; // the number of tags in schema
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uint8_t precision; // the number of precision
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int16_t numOfColumns; // the number of columns
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int32_t rowSize; // row size of the schema
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} STableComInfo;
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/*
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* ASSERT(sizeof(SCTableMeta) == 24)
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* ASSERT(tableType == TSDB_CHILD_TABLE)
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* The cached child table meta info. For each child table, 24 bytes are required to keep the essential table info.
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*/
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typedef struct SCTableMeta {
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int32_t vgId:24;
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int8_t tableType;
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uint64_t uid;
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uint64_t suid;
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} SCTableMeta;
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/*
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* Note that the first 24 bytes of STableMeta are identical to SCTableMeta, it is safe to cast a STableMeta to be a SCTableMeta.
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*/
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typedef struct STableMeta {
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//BEGIN: KEEP THIS PART SAME WITH SCTableMeta
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int32_t vgId:24;
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int8_t tableType;
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uint64_t uid;
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uint64_t suid;
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//END: KEEP THIS PART SAME WITH SCTableMeta
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// if the table is TSDB_CHILD_TABLE, the following information is acquired from the corresponding super table meta info
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int16_t sversion;
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int16_t tversion;
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STableComInfo tableInfo;
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SSchema schema[];
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} STableMeta;
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typedef struct SDBVgroupInfo {
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int32_t vgVersion;
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int8_t hashMethod;
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SHashObj *vgInfo; //key:vgId, value:SVgroupInfo
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} SDBVgroupInfo;
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typedef struct SUseDbOutput {
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char db[TSDB_FULL_DB_NAME_LEN];
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SDBVgroupInfo dbVgroup;
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} SUseDbOutput;
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typedef struct STableMetaOutput {
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int32_t metaNum;
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char ctbFname[TSDB_TABLE_FNAME_LEN];
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char tbFname[TSDB_TABLE_FNAME_LEN];
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SCTableMeta ctbMeta;
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STableMeta *tbMeta;
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} STableMetaOutput;
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extern int32_t (*queryBuildMsg[TSDB_MSG_TYPE_MAX])(void* input, char **msg, int32_t msgSize, int32_t *msgLen);
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extern int32_t (*queryProcessMsgRsp[TSDB_MSG_TYPE_MAX])(void* output, char *msg, int32_t msgSize);
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#ifdef __cplusplus
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}
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#endif
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#endif /*_TD_QUERY_H_*/
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