homework-jianmu/source/libs/parser/src/parAstParser.c

479 lines
20 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* 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.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "functionMgt.h"
#include "os.h"
#include "parAst.h"
#include "parInt.h"
#include "parToken.h"
#include "systable.h"
#include "tglobal.h"
typedef void* (*FMalloc)(size_t);
typedef void (*FFree)(void*);
extern void* ParseAlloc(FMalloc);
extern void Parse(void*, int, SToken, void*);
extern void ParseFree(void*, FFree);
extern void ParseTrace(FILE*, char*);
int32_t parse(SParseContext* pParseCxt, SQuery** pQuery) {
SAstCreateContext cxt;
initAstCreateContext(pParseCxt, &cxt);
void* pParser = ParseAlloc((FMalloc)taosMemoryMalloc);
int32_t i = 0;
while (1) {
SToken t0 = {0};
if (cxt.pQueryCxt->pSql[i] == 0) {
Parse(pParser, 0, t0, &cxt);
goto abort_parse;
}
t0.n = tGetToken((char*)&cxt.pQueryCxt->pSql[i], &t0.type);
t0.z = (char*)(cxt.pQueryCxt->pSql + i);
i += t0.n;
switch (t0.type) {
case TK_NK_SPACE:
case TK_NK_COMMENT: {
break;
}
case TK_NK_SEMI: {
Parse(pParser, 0, t0, &cxt);
goto abort_parse;
}
case TK_NK_ILLEGAL: {
snprintf(cxt.pQueryCxt->pMsg, cxt.pQueryCxt->msgLen, "unrecognized token: \"%s\"", t0.z);
cxt.errCode = TSDB_CODE_PAR_SYNTAX_ERROR;
goto abort_parse;
}
case TK_NK_HEX:
case TK_NK_OCT:
case TK_NK_BIN: {
snprintf(cxt.pQueryCxt->pMsg, cxt.pQueryCxt->msgLen, "unsupported token: \"%s\"", t0.z);
cxt.errCode = TSDB_CODE_PAR_SYNTAX_ERROR;
goto abort_parse;
}
default:
// ParseTrace(stdout, "");
Parse(pParser, t0.type, t0, &cxt);
if (TSDB_CODE_SUCCESS != cxt.errCode) {
goto abort_parse;
}
}
}
abort_parse:
ParseFree(pParser, (FFree)taosMemoryFree);
if (TSDB_CODE_SUCCESS == cxt.errCode) {
*pQuery = taosMemoryCalloc(1, sizeof(SQuery));
if (NULL == *pQuery) {
return TSDB_CODE_OUT_OF_MEMORY;
}
(*pQuery)->pRoot = cxt.pRootNode;
(*pQuery)->placeholderNum = cxt.placeholderNo;
TSWAP((*pQuery)->pPlaceholderValues, cxt.pPlaceholderValues);
}
taosArrayDestroy(cxt.pPlaceholderValues);
return cxt.errCode;
}
typedef struct SCollectMetaKeyCxt {
SParseContext* pParseCxt;
SParseMetaCache* pMetaCache;
SNode* pStmt;
} SCollectMetaKeyCxt;
static void destroyCollectMetaKeyCxt(SCollectMetaKeyCxt* pCxt) {
if (NULL != pCxt->pMetaCache) {
// TODO
}
}
typedef struct SCollectMetaKeyFromExprCxt {
SCollectMetaKeyCxt* pComCxt;
int32_t errCode;
} SCollectMetaKeyFromExprCxt;
static int32_t collectMetaKeyFromQuery(SCollectMetaKeyCxt* pCxt, SNode* pStmt);
static EDealRes collectMetaKeyFromFunction(SCollectMetaKeyFromExprCxt* pCxt, SFunctionNode* pFunc) {
if (fmIsBuiltinFunc(pFunc->functionName)) {
return DEAL_RES_CONTINUE;
}
pCxt->errCode = reserveUdfInCache(pFunc->functionName, pCxt->pComCxt->pMetaCache);
return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
}
static bool needGetTableIndex(SNode* pStmt) {
if (QUERY_SMA_OPTIMIZE_ENABLE == tsQuerySmaOptimize && QUERY_NODE_SELECT_STMT == nodeType(pStmt)) {
SSelectStmt* pSelect = (SSelectStmt*)pStmt;
return (NULL != pSelect->pWindow && QUERY_NODE_INTERVAL_WINDOW == nodeType(pSelect->pWindow));
}
return false;
}
static int32_t collectMetaKeyFromRealTableImpl(SCollectMetaKeyCxt* pCxt, SRealTableNode* pRealTable,
AUTH_TYPE authType) {
int32_t code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, pRealTable->table.dbName, pRealTable->table.tableName,
pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pRealTable->table.dbName, pRealTable->table.tableName,
pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS == code) {
code = reserveUserAuthInCache(pCxt->pParseCxt->acctId, pCxt->pParseCxt->pUser, pRealTable->table.dbName, authType,
pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS == code) {
code = reserveDbVgInfoInCache(pCxt->pParseCxt->acctId, pRealTable->table.dbName, pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS == code && needGetTableIndex(pCxt->pStmt)) {
code = reserveTableIndexInCache(pCxt->pParseCxt->acctId, pRealTable->table.dbName, pRealTable->table.tableName,
pCxt->pMetaCache);
}
return code;
}
static EDealRes collectMetaKeyFromRealTable(SCollectMetaKeyFromExprCxt* pCxt, SRealTableNode* pRealTable) {
pCxt->errCode = collectMetaKeyFromRealTableImpl(pCxt->pComCxt, pRealTable, AUTH_TYPE_READ);
return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
}
static EDealRes collectMetaKeyFromTempTable(SCollectMetaKeyFromExprCxt* pCxt, STempTableNode* pTempTable) {
pCxt->errCode = collectMetaKeyFromQuery(pCxt->pComCxt, pTempTable->pSubquery);
return TSDB_CODE_SUCCESS == pCxt->errCode ? DEAL_RES_CONTINUE : DEAL_RES_ERROR;
}
static EDealRes collectMetaKeyFromExprImpl(SNode* pNode, void* pContext) {
SCollectMetaKeyFromExprCxt* pCxt = pContext;
switch (nodeType(pNode)) {
case QUERY_NODE_FUNCTION:
return collectMetaKeyFromFunction(pCxt, (SFunctionNode*)pNode);
case QUERY_NODE_REAL_TABLE:
return collectMetaKeyFromRealTable(pCxt, (SRealTableNode*)pNode);
case QUERY_NODE_TEMP_TABLE:
return collectMetaKeyFromTempTable(pCxt, (STempTableNode*)pNode);
default:
break;
}
return DEAL_RES_CONTINUE;
}
static int32_t collectMetaKeyFromExprs(SCollectMetaKeyCxt* pCxt, SNodeList* pList) {
SCollectMetaKeyFromExprCxt cxt = {.pComCxt = pCxt, .errCode = TSDB_CODE_SUCCESS};
nodesWalkExprs(pList, collectMetaKeyFromExprImpl, &cxt);
return cxt.errCode;
}
static int32_t collectMetaKeyFromSetOperator(SCollectMetaKeyCxt* pCxt, SSetOperator* pStmt) {
int32_t code = collectMetaKeyFromQuery(pCxt, pStmt->pLeft);
if (TSDB_CODE_SUCCESS == code) {
code = collectMetaKeyFromQuery(pCxt, pStmt->pRight);
}
if (TSDB_CODE_SUCCESS == code) {
code = collectMetaKeyFromExprs(pCxt, pStmt->pOrderByList);
}
return code;
}
static int32_t collectMetaKeyFromSelect(SCollectMetaKeyCxt* pCxt, SSelectStmt* pStmt) {
SCollectMetaKeyFromExprCxt cxt = {.pComCxt = pCxt, .errCode = TSDB_CODE_SUCCESS};
nodesWalkSelectStmt(pStmt, SQL_CLAUSE_FROM, collectMetaKeyFromExprImpl, &cxt);
return cxt.errCode;
}
static int32_t collectMetaKeyFromAlterDatabase(SCollectMetaKeyCxt* pCxt, SAlterDatabaseStmt* pStmt) {
return reserveDbCfgInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromCreateTable(SCollectMetaKeyCxt* pCxt, SCreateTableStmt* pStmt) {
int32_t code = reserveDbCfgInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code && NULL == pStmt->pTags) {
code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
}
return code;
}
static int32_t collectMetaKeyFromCreateMultiTable(SCollectMetaKeyCxt* pCxt, SCreateMultiTableStmt* pStmt) {
int32_t code = TSDB_CODE_SUCCESS;
SNode* pNode = NULL;
FOREACH(pNode, pStmt->pSubTables) {
SCreateSubTableClause* pClause = (SCreateSubTableClause*)pNode;
code = reserveDbCfgInCache(pCxt->pParseCxt->acctId, pClause->dbName, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
code =
reserveTableMetaInCache(pCxt->pParseCxt->acctId, pClause->useDbName, pClause->useTableName, pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS == code) {
code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pClause->dbName, pClause->tableName, pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS != code) {
break;
}
}
return code;
}
static int32_t collectMetaKeyFromDropTable(SCollectMetaKeyCxt* pCxt, SDropTableStmt* pStmt) {
int32_t code = TSDB_CODE_SUCCESS;
SNode* pNode = NULL;
FOREACH(pNode, pStmt->pTables) {
SDropTableClause* pClause = (SDropTableClause*)pNode;
code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, pClause->dbName, pClause->tableName, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pClause->dbName, pClause->tableName, pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS != code) {
break;
}
}
return code;
}
static int32_t collectMetaKeyFromAlterTable(SCollectMetaKeyCxt* pCxt, SAlterTableStmt* pStmt) {
int32_t code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
code = reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
}
return code;
}
static int32_t collectMetaKeyFromUseDatabase(SCollectMetaKeyCxt* pCxt, SUseDatabaseStmt* pStmt) {
return reserveDbVgVersionInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromCreateIndex(SCollectMetaKeyCxt* pCxt, SCreateIndexStmt* pStmt) {
int32_t code = TSDB_CODE_SUCCESS;
if (INDEX_TYPE_SMA == pStmt->indexType) {
code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->tableName, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
code =
reserveTableVgroupInCache(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pStmt->tableName, pCxt->pMetaCache);
}
if (TSDB_CODE_SUCCESS == code) {
code = reserveDbVgInfoInCache(pCxt->pParseCxt->acctId, pCxt->pParseCxt->db, pCxt->pMetaCache);
}
}
return code;
}
static int32_t collectMetaKeyFromCreateTopic(SCollectMetaKeyCxt* pCxt, SCreateTopicStmt* pStmt) {
if (NULL != pStmt->pQuery) {
return collectMetaKeyFromQuery(pCxt, pStmt->pQuery);
}
return TSDB_CODE_SUCCESS;
}
static int32_t collectMetaKeyFromExplain(SCollectMetaKeyCxt* pCxt, SExplainStmt* pStmt) {
return collectMetaKeyFromQuery(pCxt, pStmt->pQuery);
}
static int32_t collectMetaKeyFromDescribe(SCollectMetaKeyCxt* pCxt, SDescribeStmt* pStmt) {
SName name = {.type = TSDB_TABLE_NAME_T, .acctId = pCxt->pParseCxt->acctId};
strcpy(name.dbname, pStmt->dbName);
strcpy(name.tname, pStmt->tableName);
int32_t code = catalogRemoveTableMeta(pCxt->pParseCxt->pCatalog, &name);
if (TSDB_CODE_SUCCESS == code) {
code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, pStmt->dbName, pStmt->tableName, pCxt->pMetaCache);
}
return code;
}
static int32_t collectMetaKeyFromCreateStream(SCollectMetaKeyCxt* pCxt, SCreateStreamStmt* pStmt) {
return collectMetaKeyFromQuery(pCxt, pStmt->pQuery);
}
static int32_t collectMetaKeyFromShowDnodes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_DNODES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowMnodes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_MNODES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowModules(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_MODULES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowQnodes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_QNODES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowSnodes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_SNODES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowBnodes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_BNODES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowDatabases(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USER_DATABASES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowFunctions(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USER_FUNCTIONS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowIndexes(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USER_INDEXES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowStables(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USER_STABLES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowStreams(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_PERFORMANCE_SCHEMA_DB, TSDB_PERFS_TABLE_STREAMS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowTables(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
int32_t code = reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB,
TSDB_INS_TABLE_USER_TABLES, pCxt->pMetaCache);
if (TSDB_CODE_SUCCESS == code) {
if (NULL != pStmt->pDbName) {
code = reserveDbVgInfoInCache(pCxt->pParseCxt->acctId, ((SValueNode*)pStmt->pDbName)->literal, pCxt->pMetaCache);
} else {
code = reserveDbVgInfoInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, pCxt->pMetaCache);
}
}
return code;
}
static int32_t collectMetaKeyFromShowUsers(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_USER_USERS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowLicence(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_LICENCES,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowVgroups(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_INFORMATION_SCHEMA_DB, TSDB_INS_TABLE_VGROUPS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowTopics(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_PERFORMANCE_SCHEMA_DB, TSDB_PERFS_TABLE_TOPICS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromShowTransactions(SCollectMetaKeyCxt* pCxt, SShowStmt* pStmt) {
return reserveTableMetaInCache(pCxt->pParseCxt->acctId, TSDB_PERFORMANCE_SCHEMA_DB, TSDB_PERFS_TABLE_TRANS,
pCxt->pMetaCache);
}
static int32_t collectMetaKeyFromDelete(SCollectMetaKeyCxt* pCxt, SDeleteStmt* pStmt) {
return collectMetaKeyFromRealTableImpl(pCxt, (SRealTableNode*)pStmt->pFromTable, AUTH_TYPE_WRITE);
}
static int32_t collectMetaKeyFromQuery(SCollectMetaKeyCxt* pCxt, SNode* pStmt) {
pCxt->pStmt = pStmt;
switch (nodeType(pStmt)) {
case QUERY_NODE_SET_OPERATOR:
return collectMetaKeyFromSetOperator(pCxt, (SSetOperator*)pStmt);
case QUERY_NODE_SELECT_STMT:
return collectMetaKeyFromSelect(pCxt, (SSelectStmt*)pStmt);
case QUERY_NODE_ALTER_DATABASE_STMT:
return collectMetaKeyFromAlterDatabase(pCxt, (SAlterDatabaseStmt*)pStmt);
case QUERY_NODE_CREATE_TABLE_STMT:
return collectMetaKeyFromCreateTable(pCxt, (SCreateTableStmt*)pStmt);
case QUERY_NODE_CREATE_MULTI_TABLE_STMT:
return collectMetaKeyFromCreateMultiTable(pCxt, (SCreateMultiTableStmt*)pStmt);
case QUERY_NODE_DROP_TABLE_STMT:
return collectMetaKeyFromDropTable(pCxt, (SDropTableStmt*)pStmt);
case QUERY_NODE_ALTER_TABLE_STMT:
return collectMetaKeyFromAlterTable(pCxt, (SAlterTableStmt*)pStmt);
case QUERY_NODE_USE_DATABASE_STMT:
return collectMetaKeyFromUseDatabase(pCxt, (SUseDatabaseStmt*)pStmt);
case QUERY_NODE_CREATE_INDEX_STMT:
return collectMetaKeyFromCreateIndex(pCxt, (SCreateIndexStmt*)pStmt);
case QUERY_NODE_CREATE_TOPIC_STMT:
return collectMetaKeyFromCreateTopic(pCxt, (SCreateTopicStmt*)pStmt);
case QUERY_NODE_EXPLAIN_STMT:
return collectMetaKeyFromExplain(pCxt, (SExplainStmt*)pStmt);
case QUERY_NODE_DESCRIBE_STMT:
return collectMetaKeyFromDescribe(pCxt, (SDescribeStmt*)pStmt);
case QUERY_NODE_CREATE_STREAM_STMT:
return collectMetaKeyFromCreateStream(pCxt, (SCreateStreamStmt*)pStmt);
case QUERY_NODE_SHOW_DNODES_STMT:
return collectMetaKeyFromShowDnodes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_MNODES_STMT:
return collectMetaKeyFromShowMnodes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_MODULES_STMT:
return collectMetaKeyFromShowModules(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_QNODES_STMT:
return collectMetaKeyFromShowQnodes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_SNODES_STMT:
return collectMetaKeyFromShowSnodes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_BNODES_STMT:
return collectMetaKeyFromShowBnodes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_DATABASES_STMT:
return collectMetaKeyFromShowDatabases(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_FUNCTIONS_STMT:
return collectMetaKeyFromShowFunctions(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_INDEXES_STMT:
return collectMetaKeyFromShowIndexes(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_STABLES_STMT:
return collectMetaKeyFromShowStables(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_STREAMS_STMT:
return collectMetaKeyFromShowStreams(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_TABLES_STMT:
return collectMetaKeyFromShowTables(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_USERS_STMT:
return collectMetaKeyFromShowUsers(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_LICENCE_STMT:
return collectMetaKeyFromShowLicence(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_VGROUPS_STMT:
return collectMetaKeyFromShowVgroups(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_TOPICS_STMT:
return collectMetaKeyFromShowTopics(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_SHOW_TRANSACTIONS_STMT:
return collectMetaKeyFromShowTransactions(pCxt, (SShowStmt*)pStmt);
case QUERY_NODE_DELETE_STMT:
return collectMetaKeyFromDelete(pCxt, (SDeleteStmt*)pStmt);
default:
break;
}
return TSDB_CODE_SUCCESS;
}
int32_t collectMetaKey(SParseContext* pParseCxt, SQuery* pQuery) {
SCollectMetaKeyCxt cxt = {
.pParseCxt = pParseCxt, .pMetaCache = taosMemoryCalloc(1, sizeof(SParseMetaCache)), .pStmt = pQuery->pRoot};
if (NULL == cxt.pMetaCache) {
return TSDB_CODE_OUT_OF_MEMORY;
}
int32_t code = collectMetaKeyFromQuery(&cxt, pQuery->pRoot);
if (TSDB_CODE_SUCCESS == code) {
TSWAP(pQuery->pMetaCache, cxt.pMetaCache);
}
destroyCollectMetaKeyCxt(&cxt);
return code;
}