1138 lines
34 KiB
C
1138 lines
34 KiB
C
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#include "clientInt.h"
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#include "clientLog.h"
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#include "tdef.h"
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#include "clientStmt.h"
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char* gStmtStatusStr[] = {"unknown", "init", "prepare", "settbname", "settags",
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"fetchFields", "bind", "bindCol", "addBatch", "exec"};
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static int32_t stmtCreateRequest(STscStmt* pStmt) {
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int32_t code = 0;
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if (pStmt->exec.pRequest == NULL) {
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code = buildRequest(pStmt->taos->id, pStmt->sql.sqlStr, pStmt->sql.sqlLen, NULL, false, &pStmt->exec.pRequest,
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pStmt->reqid);
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if (pStmt->reqid != 0) {
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pStmt->reqid++;
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}
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if (TSDB_CODE_SUCCESS == code) {
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pStmt->exec.pRequest->syncQuery = true;
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}
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}
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return code;
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}
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int32_t stmtSwitchStatus(STscStmt* pStmt, STMT_STATUS newStatus) {
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int32_t code = 0;
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if (newStatus >= STMT_INIT && newStatus < STMT_MAX) {
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STMT_LOG_SEQ(newStatus);
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}
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if (pStmt->errCode && newStatus != STMT_PREPARE) {
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STMT_DLOG("stmt already failed with err: %s", tstrerror(pStmt->errCode));
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return pStmt->errCode;
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}
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switch (newStatus) {
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case STMT_PREPARE:
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pStmt->errCode = 0;
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break;
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case STMT_SETTBNAME:
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if (STMT_STATUS_EQ(INIT) || STMT_STATUS_EQ(BIND) || STMT_STATUS_EQ(BIND_COL)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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break;
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case STMT_SETTAGS:
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if (STMT_STATUS_NE(SETTBNAME) && STMT_STATUS_NE(FETCH_FIELDS)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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break;
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case STMT_FETCH_FIELDS:
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if (STMT_STATUS_EQ(INIT)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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break;
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case STMT_BIND:
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if (STMT_STATUS_EQ(INIT) || STMT_STATUS_EQ(BIND_COL)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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/*
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if ((pStmt->sql.type == STMT_TYPE_MULTI_INSERT) && ()) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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*/
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break;
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case STMT_BIND_COL:
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if (STMT_STATUS_EQ(INIT) || STMT_STATUS_EQ(BIND)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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break;
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case STMT_ADD_BATCH:
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if (STMT_STATUS_NE(BIND) && STMT_STATUS_NE(BIND_COL) && STMT_STATUS_NE(FETCH_FIELDS)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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break;
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case STMT_EXECUTE:
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if (STMT_TYPE_QUERY == pStmt->sql.type) {
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if (STMT_STATUS_NE(ADD_BATCH) && STMT_STATUS_NE(FETCH_FIELDS) && STMT_STATUS_NE(BIND) &&
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STMT_STATUS_NE(BIND_COL)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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} else {
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if (STMT_STATUS_NE(ADD_BATCH) && STMT_STATUS_NE(FETCH_FIELDS)) {
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code = TSDB_CODE_TSC_STMT_API_ERROR;
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}
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}
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break;
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default:
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code = TSDB_CODE_APP_ERROR;
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break;
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}
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STMT_ERR_RET(code);
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pStmt->sql.status = newStatus;
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtGetTbName(TAOS_STMT* stmt, char** tbName) {
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STscStmt* pStmt = (STscStmt*)stmt;
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pStmt->sql.type = STMT_TYPE_MULTI_INSERT;
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if ('\0' == pStmt->bInfo.tbName[0]) {
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tscError("no table name set");
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STMT_ERR_RET(TSDB_CODE_TSC_STMT_TBNAME_ERROR);
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}
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*tbName = pStmt->bInfo.tbName;
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtBackupQueryFields(STscStmt* pStmt) {
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SStmtQueryResInfo* pRes = &pStmt->sql.queryRes;
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pRes->numOfCols = pStmt->exec.pRequest->body.resInfo.numOfCols;
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pRes->precision = pStmt->exec.pRequest->body.resInfo.precision;
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int32_t size = pRes->numOfCols * sizeof(TAOS_FIELD);
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pRes->fields = taosMemoryMalloc(size);
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pRes->userFields = taosMemoryMalloc(size);
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if (NULL == pRes->fields || NULL == pRes->userFields) {
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STMT_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
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}
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memcpy(pRes->fields, pStmt->exec.pRequest->body.resInfo.fields, size);
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memcpy(pRes->userFields, pStmt->exec.pRequest->body.resInfo.userFields, size);
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtRestoreQueryFields(STscStmt* pStmt) {
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SStmtQueryResInfo* pRes = &pStmt->sql.queryRes;
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int32_t size = pRes->numOfCols * sizeof(TAOS_FIELD);
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pStmt->exec.pRequest->body.resInfo.numOfCols = pRes->numOfCols;
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pStmt->exec.pRequest->body.resInfo.precision = pRes->precision;
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if (NULL == pStmt->exec.pRequest->body.resInfo.fields) {
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pStmt->exec.pRequest->body.resInfo.fields = taosMemoryMalloc(size);
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if (NULL == pStmt->exec.pRequest->body.resInfo.fields) {
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STMT_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
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}
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memcpy(pStmt->exec.pRequest->body.resInfo.fields, pRes->fields, size);
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}
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if (NULL == pStmt->exec.pRequest->body.resInfo.userFields) {
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pStmt->exec.pRequest->body.resInfo.userFields = taosMemoryMalloc(size);
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if (NULL == pStmt->exec.pRequest->body.resInfo.userFields) {
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STMT_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
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}
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memcpy(pStmt->exec.pRequest->body.resInfo.userFields, pRes->userFields, size);
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}
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtUpdateBindInfo(TAOS_STMT* stmt, STableMeta* pTableMeta, void* tags, SName* tbName, const char* sTableName,
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bool autoCreateTbl) {
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STscStmt* pStmt = (STscStmt*)stmt;
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char tbFName[TSDB_TABLE_FNAME_LEN];
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tNameExtractFullName(tbName, tbFName);
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memcpy(&pStmt->bInfo.sname, tbName, sizeof(*tbName));
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strncpy(pStmt->bInfo.tbFName, tbFName, sizeof(pStmt->bInfo.tbFName) - 1);
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pStmt->bInfo.tbFName[sizeof(pStmt->bInfo.tbFName) - 1] = 0;
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pStmt->bInfo.tbUid = autoCreateTbl ? 0 : pTableMeta->uid;
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pStmt->bInfo.tbSuid = pTableMeta->suid;
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pStmt->bInfo.tbType = pTableMeta->tableType;
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pStmt->bInfo.boundTags = tags;
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pStmt->bInfo.tagsCached = false;
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tstrncpy(pStmt->bInfo.stbFName, sTableName, sizeof(pStmt->bInfo.stbFName));
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtUpdateExecInfo(TAOS_STMT* stmt, SHashObj* pVgHash, SHashObj* pBlockHash) {
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STscStmt* pStmt = (STscStmt*)stmt;
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pStmt->sql.pVgHash = pVgHash;
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pStmt->exec.pBlockHash = pBlockHash;
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtUpdateInfo(TAOS_STMT* stmt, STableMeta* pTableMeta, void* tags, SName* tbName, bool autoCreateTbl,
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SHashObj* pVgHash, SHashObj* pBlockHash, const char* sTableName) {
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STscStmt* pStmt = (STscStmt*)stmt;
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STMT_ERR_RET(stmtUpdateBindInfo(stmt, pTableMeta, tags, tbName, sTableName, autoCreateTbl));
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STMT_ERR_RET(stmtUpdateExecInfo(stmt, pVgHash, pBlockHash));
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pStmt->sql.autoCreateTbl = autoCreateTbl;
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtGetExecInfo(TAOS_STMT* stmt, SHashObj** pVgHash, SHashObj** pBlockHash) {
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STscStmt* pStmt = (STscStmt*)stmt;
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*pVgHash = pStmt->sql.pVgHash;
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pStmt->sql.pVgHash = NULL;
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*pBlockHash = pStmt->exec.pBlockHash;
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pStmt->exec.pBlockHash = NULL;
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtCacheBlock(STscStmt* pStmt) {
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if (pStmt->sql.type != STMT_TYPE_MULTI_INSERT) {
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return TSDB_CODE_SUCCESS;
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}
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uint64_t uid = pStmt->bInfo.tbUid;
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uint64_t cacheUid = (TSDB_CHILD_TABLE == pStmt->bInfo.tbType) ? pStmt->bInfo.tbSuid : uid;
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if (taosHashGet(pStmt->sql.pTableCache, &cacheUid, sizeof(cacheUid))) {
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return TSDB_CODE_SUCCESS;
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}
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STableDataCxt** pSrc = taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
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if (!pSrc) {
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return TSDB_CODE_OUT_OF_MEMORY;
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}
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STableDataCxt* pDst = NULL;
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STMT_ERR_RET(qCloneStmtDataBlock(&pDst, *pSrc, true));
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SStmtTableCache cache = {
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.pDataCtx = pDst,
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.boundTags = pStmt->bInfo.boundTags,
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};
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if (taosHashPut(pStmt->sql.pTableCache, &cacheUid, sizeof(cacheUid), &cache, sizeof(cache))) {
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return TSDB_CODE_OUT_OF_MEMORY;
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}
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if (pStmt->sql.autoCreateTbl) {
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pStmt->bInfo.tagsCached = true;
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} else {
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pStmt->bInfo.boundTags = NULL;
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}
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtParseSql(STscStmt* pStmt) {
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pStmt->exec.pCurrBlock = NULL;
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SStmtCallback stmtCb = {
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.pStmt = pStmt,
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.getTbNameFn = stmtGetTbName,
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.setInfoFn = stmtUpdateInfo,
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.getExecInfoFn = stmtGetExecInfo,
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};
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STMT_ERR_RET(stmtCreateRequest(pStmt));
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STMT_ERR_RET(parseSql(pStmt->exec.pRequest, false, &pStmt->sql.pQuery, &stmtCb));
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pStmt->bInfo.needParse = false;
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if (pStmt->sql.pQuery->pRoot && 0 == pStmt->sql.type) {
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pStmt->sql.type = STMT_TYPE_INSERT;
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} else if (pStmt->sql.pQuery->pPrepareRoot) {
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pStmt->sql.type = STMT_TYPE_QUERY;
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}
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtCleanBindInfo(STscStmt* pStmt) {
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pStmt->bInfo.tbUid = 0;
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pStmt->bInfo.tbSuid = 0;
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pStmt->bInfo.tbType = 0;
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pStmt->bInfo.needParse = true;
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pStmt->bInfo.inExecCache = false;
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pStmt->bInfo.tbName[0] = 0;
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pStmt->bInfo.tbFName[0] = 0;
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if (!pStmt->bInfo.tagsCached) {
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qDestroyBoundColInfo(pStmt->bInfo.boundTags);
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taosMemoryFreeClear(pStmt->bInfo.boundTags);
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}
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memset(pStmt->bInfo.stbFName, 0, TSDB_TABLE_FNAME_LEN);
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtCleanExecInfo(STscStmt* pStmt, bool keepTable, bool deepClean) {
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if (STMT_TYPE_QUERY != pStmt->sql.type || deepClean) {
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taos_free_result(pStmt->exec.pRequest);
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pStmt->exec.pRequest = NULL;
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}
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size_t keyLen = 0;
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void* pIter = taosHashIterate(pStmt->exec.pBlockHash, NULL);
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while (pIter) {
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STableDataCxt* pBlocks = *(STableDataCxt**)pIter;
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char* key = taosHashGetKey(pIter, &keyLen);
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STableMeta* pMeta = qGetTableMetaInDataBlock(pBlocks);
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if (keepTable && pBlocks == pStmt->exec.pCurrBlock) {
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TSWAP(pBlocks->pData, pStmt->exec.pCurrTbData);
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STMT_ERR_RET(qResetStmtDataBlock(pBlocks, false));
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pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
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continue;
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}
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qDestroyStmtDataBlock(pBlocks);
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taosHashRemove(pStmt->exec.pBlockHash, key, keyLen);
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pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
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}
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if (keepTable) {
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return TSDB_CODE_SUCCESS;
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}
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taosHashCleanup(pStmt->exec.pBlockHash);
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pStmt->exec.pBlockHash = NULL;
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tDestroySubmitTbData(pStmt->exec.pCurrTbData, TSDB_MSG_FLG_ENCODE);
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taosMemoryFreeClear(pStmt->exec.pCurrTbData);
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STMT_ERR_RET(stmtCleanBindInfo(pStmt));
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtCleanSQLInfo(STscStmt* pStmt) {
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STMT_DLOG_E("start to free SQL info");
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taosMemoryFree(pStmt->sql.queryRes.fields);
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taosMemoryFree(pStmt->sql.queryRes.userFields);
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taosMemoryFree(pStmt->sql.sqlStr);
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qDestroyQuery(pStmt->sql.pQuery);
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taosArrayDestroy(pStmt->sql.nodeList);
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taosHashCleanup(pStmt->sql.pVgHash);
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pStmt->sql.pVgHash = NULL;
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void* pIter = taosHashIterate(pStmt->sql.pTableCache, NULL);
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while (pIter) {
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SStmtTableCache* pCache = (SStmtTableCache*)pIter;
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qDestroyStmtDataBlock(pCache->pDataCtx);
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qDestroyBoundColInfo(pCache->boundTags);
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taosMemoryFreeClear(pCache->boundTags);
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pIter = taosHashIterate(pStmt->sql.pTableCache, pIter);
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}
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taosHashCleanup(pStmt->sql.pTableCache);
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pStmt->sql.pTableCache = NULL;
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STMT_ERR_RET(stmtCleanExecInfo(pStmt, false, true));
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STMT_ERR_RET(stmtCleanBindInfo(pStmt));
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memset(&pStmt->sql, 0, sizeof(pStmt->sql));
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STMT_DLOG_E("end to free SQL info");
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtRebuildDataBlock(STscStmt* pStmt, STableDataCxt* pDataBlock, STableDataCxt** newBlock, uint64_t uid,
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uint64_t suid) {
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SEpSet ep = getEpSet_s(&pStmt->taos->pAppInfo->mgmtEp);
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SVgroupInfo vgInfo = {0};
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SRequestConnInfo conn = {.pTrans = pStmt->taos->pAppInfo->pTransporter,
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.requestId = pStmt->exec.pRequest->requestId,
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.requestObjRefId = pStmt->exec.pRequest->self,
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.mgmtEps = getEpSet_s(&pStmt->taos->pAppInfo->mgmtEp)};
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STMT_ERR_RET(catalogGetTableHashVgroup(pStmt->pCatalog, &conn, &pStmt->bInfo.sname, &vgInfo));
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STMT_ERR_RET(
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taosHashPut(pStmt->sql.pVgHash, (const char*)&vgInfo.vgId, sizeof(vgInfo.vgId), (char*)&vgInfo, sizeof(vgInfo)));
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STMT_ERR_RET(qRebuildStmtDataBlock(newBlock, pDataBlock, uid, suid, vgInfo.vgId, pStmt->sql.autoCreateTbl));
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STMT_DLOG("tableDataCxt rebuilt, uid:%" PRId64 ", vgId:%d", uid, vgInfo.vgId);
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return TSDB_CODE_SUCCESS;
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}
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int32_t stmtGetFromCache(STscStmt* pStmt) {
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pStmt->bInfo.needParse = true;
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pStmt->bInfo.inExecCache = false;
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STableDataCxt** pCxtInExec = taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
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if (pCxtInExec) {
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pStmt->bInfo.needParse = false;
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pStmt->bInfo.inExecCache = true;
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pStmt->exec.pCurrBlock = *pCxtInExec;
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if (pStmt->sql.autoCreateTbl) {
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tscDebug("reuse stmt block for tb %s in execBlock", pStmt->bInfo.tbFName);
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return TSDB_CODE_SUCCESS;
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}
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}
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if (NULL == pStmt->sql.pTableCache || taosHashGetSize(pStmt->sql.pTableCache) <= 0) {
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if (pStmt->bInfo.inExecCache) {
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if (ASSERT(taosHashGetSize(pStmt->exec.pBlockHash) == 1)) {
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tscError("stmtGetFromCache error");
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return TSDB_CODE_TSC_STMT_CACHE_ERROR;
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}
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pStmt->bInfo.needParse = false;
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tscDebug("reuse stmt block for tb %s in execBlock", pStmt->bInfo.tbFName);
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return TSDB_CODE_SUCCESS;
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}
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tscDebug("no stmt block cache for tb %s", pStmt->bInfo.tbFName);
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return TSDB_CODE_SUCCESS;
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}
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if (NULL == pStmt->pCatalog) {
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STMT_ERR_RET(catalogGetHandle(pStmt->taos->pAppInfo->clusterId, &pStmt->pCatalog));
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}
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if (pStmt->sql.autoCreateTbl) {
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SStmtTableCache* pCache = taosHashGet(pStmt->sql.pTableCache, &pStmt->bInfo.tbSuid, sizeof(pStmt->bInfo.tbSuid));
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if (pCache) {
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pStmt->bInfo.needParse = false;
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pStmt->bInfo.tbUid = 0;
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STableDataCxt* pNewBlock = NULL;
|
|
STMT_ERR_RET(stmtRebuildDataBlock(pStmt, pCache->pDataCtx, &pNewBlock, 0, pStmt->bInfo.tbSuid));
|
|
|
|
if (taosHashPut(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName), &pNewBlock,
|
|
POINTER_BYTES)) {
|
|
STMT_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
|
|
}
|
|
|
|
pStmt->exec.pCurrBlock = pNewBlock;
|
|
|
|
tscDebug("reuse stmt block for tb %s in sqlBlock, suid:0x%" PRIx64, pStmt->bInfo.tbFName, pStmt->bInfo.tbSuid);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
STMT_RET(stmtCleanBindInfo(pStmt));
|
|
}
|
|
|
|
STableMeta* pTableMeta = NULL;
|
|
SRequestConnInfo conn = {.pTrans = pStmt->taos->pAppInfo->pTransporter,
|
|
.requestId = pStmt->exec.pRequest->requestId,
|
|
.requestObjRefId = pStmt->exec.pRequest->self,
|
|
.mgmtEps = getEpSet_s(&pStmt->taos->pAppInfo->mgmtEp)};
|
|
int32_t code = catalogGetTableMeta(pStmt->pCatalog, &conn, &pStmt->bInfo.sname, &pTableMeta);
|
|
if (TSDB_CODE_PAR_TABLE_NOT_EXIST == code) {
|
|
tscDebug("tb %s not exist", pStmt->bInfo.tbFName);
|
|
stmtCleanBindInfo(pStmt);
|
|
|
|
STMT_ERR_RET(code);
|
|
}
|
|
|
|
STMT_ERR_RET(code);
|
|
|
|
uint64_t uid = pTableMeta->uid;
|
|
uint64_t suid = pTableMeta->suid;
|
|
int8_t tableType = pTableMeta->tableType;
|
|
taosMemoryFree(pTableMeta);
|
|
uint64_t cacheUid = (TSDB_CHILD_TABLE == tableType) ? suid : uid;
|
|
|
|
if (uid == pStmt->bInfo.tbUid) {
|
|
pStmt->bInfo.needParse = false;
|
|
|
|
tscDebug("tb %s is current table", pStmt->bInfo.tbFName);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
if (pStmt->bInfo.inExecCache) {
|
|
SStmtTableCache* pCache = taosHashGet(pStmt->sql.pTableCache, &cacheUid, sizeof(cacheUid));
|
|
if (NULL == pCache) {
|
|
tscError("table [%s, %" PRIx64 ", %" PRIx64 "] found in exec blockHash, but not in sql blockHash",
|
|
pStmt->bInfo.tbFName, uid, cacheUid);
|
|
|
|
STMT_ERR_RET(TSDB_CODE_APP_ERROR);
|
|
}
|
|
|
|
pStmt->bInfo.needParse = false;
|
|
|
|
pStmt->bInfo.tbUid = uid;
|
|
pStmt->bInfo.tbSuid = suid;
|
|
pStmt->bInfo.tbType = tableType;
|
|
pStmt->bInfo.boundTags = pCache->boundTags;
|
|
pStmt->bInfo.tagsCached = true;
|
|
|
|
tscDebug("tb %s in execBlock list, set to current", pStmt->bInfo.tbFName);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
SStmtTableCache* pCache = taosHashGet(pStmt->sql.pTableCache, &cacheUid, sizeof(cacheUid));
|
|
if (pCache) {
|
|
pStmt->bInfo.needParse = false;
|
|
|
|
pStmt->bInfo.tbUid = uid;
|
|
pStmt->bInfo.tbSuid = suid;
|
|
pStmt->bInfo.tbType = tableType;
|
|
pStmt->bInfo.boundTags = pCache->boundTags;
|
|
pStmt->bInfo.tagsCached = true;
|
|
|
|
STableDataCxt* pNewBlock = NULL;
|
|
STMT_ERR_RET(stmtRebuildDataBlock(pStmt, pCache->pDataCtx, &pNewBlock, uid, suid));
|
|
|
|
if (taosHashPut(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName), &pNewBlock,
|
|
POINTER_BYTES)) {
|
|
STMT_ERR_RET(TSDB_CODE_OUT_OF_MEMORY);
|
|
}
|
|
|
|
pStmt->exec.pCurrBlock = pNewBlock;
|
|
|
|
tscDebug("tb %s in sqlBlock list, set to current", pStmt->bInfo.tbFName);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
STMT_ERR_RET(stmtCleanBindInfo(pStmt));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int32_t stmtResetStmt(STscStmt* pStmt) {
|
|
STMT_ERR_RET(stmtCleanSQLInfo(pStmt));
|
|
|
|
pStmt->sql.pTableCache = taosHashInit(100, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
|
|
if (NULL == pStmt->sql.pTableCache) {
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
STMT_ERR_RET(terrno);
|
|
}
|
|
|
|
pStmt->sql.status = STMT_INIT;
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
TAOS_STMT* stmtInit(STscObj* taos, int64_t reqid) {
|
|
STscObj* pObj = (STscObj*)taos;
|
|
STscStmt* pStmt = NULL;
|
|
|
|
pStmt = taosMemoryCalloc(1, sizeof(STscStmt));
|
|
if (NULL == pStmt) {
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
return NULL;
|
|
}
|
|
|
|
pStmt->sql.pTableCache = taosHashInit(100, taosGetDefaultHashFunction(TSDB_DATA_TYPE_BIGINT), false, HASH_NO_LOCK);
|
|
if (NULL == pStmt->sql.pTableCache) {
|
|
terrno = TSDB_CODE_OUT_OF_MEMORY;
|
|
taosMemoryFree(pStmt);
|
|
return NULL;
|
|
}
|
|
|
|
pStmt->taos = pObj;
|
|
pStmt->bInfo.needParse = true;
|
|
pStmt->sql.status = STMT_INIT;
|
|
pStmt->reqid = reqid;
|
|
|
|
STMT_LOG_SEQ(STMT_INIT);
|
|
|
|
tscDebug("stmt:%p initialized", pStmt);
|
|
|
|
return pStmt;
|
|
}
|
|
|
|
int stmtPrepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to prepare");
|
|
|
|
if (pStmt->sql.status >= STMT_PREPARE) {
|
|
STMT_ERR_RET(stmtResetStmt(pStmt));
|
|
}
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_PREPARE));
|
|
|
|
if (length <= 0) {
|
|
length = strlen(sql);
|
|
}
|
|
|
|
pStmt->sql.sqlStr = strndup(sql, length);
|
|
pStmt->sql.sqlLen = length;
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtSetTbName(TAOS_STMT* stmt, const char* tbName) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG("start to set tbName: %s", tbName);
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_SETTBNAME));
|
|
|
|
int32_t insert = 0;
|
|
stmtIsInsert(stmt, &insert);
|
|
if (0 == insert) {
|
|
tscError("set tb name not available for none insert statement");
|
|
STMT_ERR_RET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STMT_ERR_RET(stmtCreateRequest(pStmt));
|
|
|
|
STMT_ERR_RET(qCreateSName(&pStmt->bInfo.sname, tbName, pStmt->taos->acctId, pStmt->exec.pRequest->pDb,
|
|
pStmt->exec.pRequest->msgBuf, pStmt->exec.pRequest->msgBufLen));
|
|
tNameExtractFullName(&pStmt->bInfo.sname, pStmt->bInfo.tbFName);
|
|
|
|
STMT_ERR_RET(stmtGetFromCache(pStmt));
|
|
|
|
if (pStmt->bInfo.needParse) {
|
|
strncpy(pStmt->bInfo.tbName, tbName, sizeof(pStmt->bInfo.tbName) - 1);
|
|
pStmt->bInfo.tbName[sizeof(pStmt->bInfo.tbName) - 1] = 0;
|
|
|
|
STMT_ERR_RET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtSetTbTags(TAOS_STMT* stmt, TAOS_MULTI_BIND* tags) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to set tbTags");
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_SETTAGS));
|
|
|
|
if (pStmt->bInfo.inExecCache) {
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
STableDataCxt** pDataBlock =
|
|
(STableDataCxt**)taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
|
|
if (NULL == pDataBlock) {
|
|
tscError("table %s not found in exec blockHash", pStmt->bInfo.tbFName);
|
|
STMT_ERR_RET(TSDB_CODE_APP_ERROR);
|
|
}
|
|
|
|
tscDebug("start to bind stmt tag values");
|
|
STMT_ERR_RET(qBindStmtTagsValue(*pDataBlock, pStmt->bInfo.boundTags, pStmt->bInfo.tbSuid, pStmt->bInfo.stbFName,
|
|
pStmt->bInfo.sname.tname, tags, pStmt->exec.pRequest->msgBuf,
|
|
pStmt->exec.pRequest->msgBufLen));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtFetchTagFields(STscStmt* pStmt, int32_t* fieldNum, TAOS_FIELD_E** fields) {
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
tscError("invalid operation to get query tag fileds");
|
|
STMT_ERR_RET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STableDataCxt** pDataBlock =
|
|
(STableDataCxt**)taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
|
|
if (NULL == pDataBlock) {
|
|
tscError("table %s not found in exec blockHash", pStmt->bInfo.tbFName);
|
|
STMT_ERR_RET(TSDB_CODE_APP_ERROR);
|
|
}
|
|
|
|
STMT_ERR_RET(qBuildStmtTagFields(*pDataBlock, pStmt->bInfo.boundTags, fieldNum, fields));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtFetchColFields(STscStmt* pStmt, int32_t* fieldNum, TAOS_FIELD_E** fields) {
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
tscError("invalid operation to get query column fileds");
|
|
STMT_ERR_RET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STableDataCxt** pDataBlock =
|
|
(STableDataCxt**)taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
|
|
if (NULL == pDataBlock) {
|
|
tscError("table %s not found in exec blockHash", pStmt->bInfo.tbFName);
|
|
STMT_ERR_RET(TSDB_CODE_APP_ERROR);
|
|
}
|
|
|
|
STMT_ERR_RET(qBuildStmtColFields(*pDataBlock, fieldNum, fields));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtBindBatch(TAOS_STMT* stmt, TAOS_MULTI_BIND* bind, int32_t colIdx) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG("start to bind stmt data, colIdx: %d", colIdx);
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_BIND));
|
|
|
|
if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 &&
|
|
STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
|
|
pStmt->bInfo.needParse = false;
|
|
}
|
|
|
|
if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
}
|
|
|
|
STMT_ERR_RET(stmtCreateRequest(pStmt));
|
|
|
|
if (pStmt->bInfo.needParse) {
|
|
STMT_ERR_RET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
STMT_ERR_RET(qStmtBindParams(pStmt->sql.pQuery, bind, colIdx));
|
|
|
|
SParseContext ctx = {.requestId = pStmt->exec.pRequest->requestId,
|
|
.acctId = pStmt->taos->acctId,
|
|
.db = pStmt->exec.pRequest->pDb,
|
|
.topicQuery = false,
|
|
.pSql = pStmt->sql.sqlStr,
|
|
.sqlLen = pStmt->sql.sqlLen,
|
|
.pMsg = pStmt->exec.pRequest->msgBuf,
|
|
.msgLen = ERROR_MSG_BUF_DEFAULT_SIZE,
|
|
.pTransporter = pStmt->taos->pAppInfo->pTransporter,
|
|
.pStmtCb = NULL,
|
|
.pUser = pStmt->taos->user};
|
|
ctx.mgmtEpSet = getEpSet_s(&pStmt->taos->pAppInfo->mgmtEp);
|
|
STMT_ERR_RET(catalogGetHandle(pStmt->taos->pAppInfo->clusterId, &ctx.pCatalog));
|
|
|
|
STMT_ERR_RET(qStmtParseQuerySql(&ctx, pStmt->sql.pQuery));
|
|
|
|
if (pStmt->sql.pQuery->haveResultSet) {
|
|
setResSchemaInfo(&pStmt->exec.pRequest->body.resInfo, pStmt->sql.pQuery->pResSchema,
|
|
pStmt->sql.pQuery->numOfResCols);
|
|
taosMemoryFreeClear(pStmt->sql.pQuery->pResSchema);
|
|
setResPrecision(&pStmt->exec.pRequest->body.resInfo, pStmt->sql.pQuery->precision);
|
|
}
|
|
|
|
TSWAP(pStmt->exec.pRequest->dbList, pStmt->sql.pQuery->pDbList);
|
|
TSWAP(pStmt->exec.pRequest->tableList, pStmt->sql.pQuery->pTableList);
|
|
TSWAP(pStmt->exec.pRequest->targetTableList, pStmt->sql.pQuery->pTargetTableList);
|
|
|
|
// if (STMT_TYPE_QUERY == pStmt->sql.queryRes) {
|
|
// STMT_ERR_RET(stmtRestoreQueryFields(pStmt));
|
|
// }
|
|
|
|
// STMT_ERR_RET(stmtBackupQueryFields(pStmt));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
STableDataCxt** pDataBlock = NULL;
|
|
|
|
if (pStmt->exec.pCurrBlock) {
|
|
pDataBlock = &pStmt->exec.pCurrBlock;
|
|
} else {
|
|
pDataBlock =
|
|
(STableDataCxt**)taosHashGet(pStmt->exec.pBlockHash, pStmt->bInfo.tbFName, strlen(pStmt->bInfo.tbFName));
|
|
if (NULL == pDataBlock) {
|
|
tscError("table %s not found in exec blockHash", pStmt->bInfo.tbFName);
|
|
STMT_ERR_RET(TSDB_CODE_TSC_STMT_CACHE_ERROR);
|
|
}
|
|
pStmt->exec.pCurrBlock = *pDataBlock;
|
|
}
|
|
|
|
if (colIdx < 0) {
|
|
int32_t code = qBindStmtColsValue(*pDataBlock, bind, pStmt->exec.pRequest->msgBuf, pStmt->exec.pRequest->msgBufLen);
|
|
if (code) {
|
|
tscError("qBindStmtColsValue failed, error:%s", tstrerror(code));
|
|
STMT_ERR_RET(code);
|
|
}
|
|
} else {
|
|
if (colIdx != (pStmt->bInfo.sBindLastIdx + 1) && colIdx != 0) {
|
|
tscError("bind column index not in sequence");
|
|
STMT_ERR_RET(TSDB_CODE_APP_ERROR);
|
|
}
|
|
|
|
pStmt->bInfo.sBindLastIdx = colIdx;
|
|
|
|
if (0 == colIdx) {
|
|
pStmt->bInfo.sBindRowNum = bind->num;
|
|
}
|
|
|
|
qBindStmtSingleColValue(*pDataBlock, bind, pStmt->exec.pRequest->msgBuf, pStmt->exec.pRequest->msgBufLen, colIdx,
|
|
pStmt->bInfo.sBindRowNum);
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtAddBatch(TAOS_STMT* stmt) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to add batch");
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_ADD_BATCH));
|
|
|
|
STMT_ERR_RET(stmtCacheBlock(pStmt));
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtUpdateTableUid(STscStmt* pStmt, SSubmitRsp* pRsp) {
|
|
tscDebug("stmt start to update tbUid, blockNum: %d", pRsp->nBlocks);
|
|
|
|
int32_t code = 0;
|
|
int32_t finalCode = 0;
|
|
size_t keyLen = 0;
|
|
void* pIter = taosHashIterate(pStmt->exec.pBlockHash, NULL);
|
|
while (pIter) {
|
|
STableDataCxt* pBlock = *(STableDataCxt**)pIter;
|
|
char* key = taosHashGetKey(pIter, &keyLen);
|
|
|
|
STableMeta* pMeta = qGetTableMetaInDataBlock(pBlock);
|
|
if (pMeta->uid) {
|
|
pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
|
|
continue;
|
|
}
|
|
|
|
SSubmitBlkRsp* blkRsp = NULL;
|
|
int32_t i = 0;
|
|
for (; i < pRsp->nBlocks; ++i) {
|
|
blkRsp = pRsp->pBlocks + i;
|
|
if (strlen(blkRsp->tblFName) != keyLen) {
|
|
continue;
|
|
}
|
|
|
|
if (strncmp(blkRsp->tblFName, key, keyLen)) {
|
|
continue;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
if (i < pRsp->nBlocks) {
|
|
tscDebug("auto created table %s uid updated from %" PRIx64 " to %" PRIx64, blkRsp->tblFName, pMeta->uid,
|
|
blkRsp->uid);
|
|
|
|
pMeta->uid = blkRsp->uid;
|
|
pStmt->bInfo.tbUid = blkRsp->uid;
|
|
} else {
|
|
tscDebug("table %s not found in submit rsp, will update from catalog", pStmt->bInfo.tbFName);
|
|
if (NULL == pStmt->pCatalog) {
|
|
code = catalogGetHandle(pStmt->taos->pAppInfo->clusterId, &pStmt->pCatalog);
|
|
if (code) {
|
|
pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
|
|
finalCode = code;
|
|
continue;
|
|
}
|
|
}
|
|
|
|
code = stmtCreateRequest(pStmt);
|
|
if (code) {
|
|
pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
|
|
finalCode = code;
|
|
continue;
|
|
}
|
|
|
|
STableMeta* pTableMeta = NULL;
|
|
SRequestConnInfo conn = {.pTrans = pStmt->taos->pAppInfo->pTransporter,
|
|
.requestId = pStmt->exec.pRequest->requestId,
|
|
.requestObjRefId = pStmt->exec.pRequest->self,
|
|
.mgmtEps = getEpSet_s(&pStmt->taos->pAppInfo->mgmtEp)};
|
|
int32_t code = catalogGetTableMeta(pStmt->pCatalog, &conn, &pStmt->bInfo.sname, &pTableMeta);
|
|
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
|
|
if (code || NULL == pTableMeta) {
|
|
pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
|
|
finalCode = code;
|
|
taosMemoryFree(pTableMeta);
|
|
continue;
|
|
}
|
|
|
|
pMeta->uid = pTableMeta->uid;
|
|
pStmt->bInfo.tbUid = pTableMeta->uid;
|
|
taosMemoryFree(pTableMeta);
|
|
}
|
|
|
|
pIter = taosHashIterate(pStmt->exec.pBlockHash, pIter);
|
|
}
|
|
|
|
return finalCode;
|
|
}
|
|
|
|
int stmtExec(TAOS_STMT* stmt) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
int32_t code = 0;
|
|
SSubmitRsp* pRsp = NULL;
|
|
|
|
STMT_DLOG_E("start to exec");
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_EXECUTE));
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
launchQueryImpl(pStmt->exec.pRequest, pStmt->sql.pQuery, true, NULL);
|
|
} else {
|
|
tDestroySubmitTbData(pStmt->exec.pCurrTbData, TSDB_MSG_FLG_ENCODE);
|
|
taosMemoryFreeClear(pStmt->exec.pCurrTbData);
|
|
|
|
STMT_ERR_RET(qCloneCurrentTbData(pStmt->exec.pCurrBlock, &pStmt->exec.pCurrTbData));
|
|
|
|
STMT_ERR_RET(qBuildStmtOutput(pStmt->sql.pQuery, pStmt->sql.pVgHash, pStmt->exec.pBlockHash));
|
|
launchQueryImpl(pStmt->exec.pRequest, pStmt->sql.pQuery, true, NULL);
|
|
}
|
|
|
|
if (pStmt->exec.pRequest->code && NEED_CLIENT_HANDLE_ERROR(pStmt->exec.pRequest->code)) {
|
|
code = refreshMeta(pStmt->exec.pRequest->pTscObj, pStmt->exec.pRequest);
|
|
if (code) {
|
|
pStmt->exec.pRequest->code = code;
|
|
} else {
|
|
tFreeSSubmitRsp(pRsp);
|
|
STMT_ERR_RET(stmtResetStmt(pStmt));
|
|
STMT_ERR_RET(TSDB_CODE_NEED_RETRY);
|
|
}
|
|
}
|
|
|
|
STMT_ERR_JRET(pStmt->exec.pRequest->code);
|
|
|
|
pStmt->exec.affectedRows = taos_affected_rows(pStmt->exec.pRequest);
|
|
pStmt->affectedRows += pStmt->exec.affectedRows;
|
|
|
|
_return:
|
|
|
|
stmtCleanExecInfo(pStmt, (code ? false : true), false);
|
|
|
|
tFreeSSubmitRsp(pRsp);
|
|
|
|
++pStmt->sql.runTimes;
|
|
|
|
STMT_RET(code);
|
|
}
|
|
|
|
int stmtClose(TAOS_STMT* stmt) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to free stmt");
|
|
|
|
stmtCleanSQLInfo(pStmt);
|
|
taosMemoryFree(stmt);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
const char* stmtErrstr(TAOS_STMT* stmt) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
if (stmt == NULL || NULL == pStmt->exec.pRequest) {
|
|
return (char*)tstrerror(terrno);
|
|
}
|
|
|
|
pStmt->exec.pRequest->code = terrno;
|
|
|
|
return taos_errstr(pStmt->exec.pRequest);
|
|
}
|
|
|
|
int stmtAffectedRows(TAOS_STMT* stmt) { return ((STscStmt*)stmt)->affectedRows; }
|
|
|
|
int stmtAffectedRowsOnce(TAOS_STMT* stmt) { return ((STscStmt*)stmt)->exec.affectedRows; }
|
|
|
|
int stmtIsInsert(TAOS_STMT* stmt, int* insert) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start is insert");
|
|
|
|
if (pStmt->sql.type) {
|
|
*insert = (STMT_TYPE_INSERT == pStmt->sql.type || STMT_TYPE_MULTI_INSERT == pStmt->sql.type);
|
|
} else {
|
|
*insert = qIsInsertValuesSql(pStmt->sql.sqlStr, pStmt->sql.sqlLen);
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtGetTagFields(TAOS_STMT* stmt, int* nums, TAOS_FIELD_E** fields) {
|
|
int32_t code = 0;
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
int32_t preCode = pStmt->errCode;
|
|
|
|
STMT_DLOG_E("start to get tag fields");
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
STMT_ERRI_JRET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtSwitchStatus(pStmt, STMT_FETCH_FIELDS));
|
|
|
|
if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 &&
|
|
STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
|
|
pStmt->bInfo.needParse = false;
|
|
}
|
|
|
|
if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtCreateRequest(pStmt));
|
|
|
|
if (pStmt->bInfo.needParse) {
|
|
STMT_ERRI_JRET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtFetchTagFields(stmt, nums, fields));
|
|
|
|
_return:
|
|
|
|
pStmt->errCode = preCode;
|
|
|
|
return code;
|
|
}
|
|
|
|
int stmtGetColFields(TAOS_STMT* stmt, int* nums, TAOS_FIELD_E** fields) {
|
|
int32_t code = 0;
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
int32_t preCode = pStmt->errCode;
|
|
|
|
STMT_DLOG_E("start to get col fields");
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
STMT_ERRI_JRET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtSwitchStatus(pStmt, STMT_FETCH_FIELDS));
|
|
|
|
if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 &&
|
|
STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
|
|
pStmt->bInfo.needParse = false;
|
|
}
|
|
|
|
if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtCreateRequest(pStmt));
|
|
|
|
if (pStmt->bInfo.needParse) {
|
|
STMT_ERRI_JRET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
STMT_ERRI_JRET(stmtFetchColFields(stmt, nums, fields));
|
|
|
|
_return:
|
|
|
|
pStmt->errCode = preCode;
|
|
|
|
return code;
|
|
}
|
|
|
|
int stmtGetParamNum(TAOS_STMT* stmt, int* nums) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to get param num");
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_FETCH_FIELDS));
|
|
|
|
if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 &&
|
|
STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
|
|
pStmt->bInfo.needParse = false;
|
|
}
|
|
|
|
if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
}
|
|
|
|
STMT_ERR_RET(stmtCreateRequest(pStmt));
|
|
if (pStmt->bInfo.needParse) {
|
|
STMT_ERR_RET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
*nums = taosArrayGetSize(pStmt->sql.pQuery->pPlaceholderValues);
|
|
} else {
|
|
STMT_ERR_RET(stmtFetchColFields(stmt, nums, NULL));
|
|
}
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
int stmtGetParam(TAOS_STMT* stmt, int idx, int* type, int* bytes) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to get param");
|
|
|
|
if (STMT_TYPE_QUERY == pStmt->sql.type) {
|
|
STMT_RET(TSDB_CODE_TSC_STMT_API_ERROR);
|
|
}
|
|
|
|
STMT_ERR_RET(stmtSwitchStatus(pStmt, STMT_FETCH_FIELDS));
|
|
|
|
if (pStmt->bInfo.needParse && pStmt->sql.runTimes && pStmt->sql.type > 0 &&
|
|
STMT_TYPE_MULTI_INSERT != pStmt->sql.type) {
|
|
pStmt->bInfo.needParse = false;
|
|
}
|
|
|
|
if (pStmt->exec.pRequest && STMT_TYPE_QUERY == pStmt->sql.type && pStmt->sql.runTimes) {
|
|
taos_free_result(pStmt->exec.pRequest);
|
|
pStmt->exec.pRequest = NULL;
|
|
}
|
|
|
|
STMT_ERR_RET(stmtCreateRequest(pStmt));
|
|
|
|
if (pStmt->bInfo.needParse) {
|
|
STMT_ERR_RET(stmtParseSql(pStmt));
|
|
}
|
|
|
|
int32_t nums = 0;
|
|
TAOS_FIELD_E* pField = NULL;
|
|
STMT_ERR_RET(stmtFetchColFields(stmt, &nums, &pField));
|
|
if (idx >= nums) {
|
|
tscError("idx %d is too big", idx);
|
|
taosMemoryFree(pField);
|
|
STMT_ERR_RET(TSDB_CODE_INVALID_PARA);
|
|
}
|
|
|
|
*type = pField[idx].type;
|
|
*bytes = pField[idx].bytes;
|
|
|
|
taosMemoryFree(pField);
|
|
|
|
return TSDB_CODE_SUCCESS;
|
|
}
|
|
|
|
TAOS_RES* stmtUseResult(TAOS_STMT* stmt) {
|
|
STscStmt* pStmt = (STscStmt*)stmt;
|
|
|
|
STMT_DLOG_E("start to use result");
|
|
|
|
if (STMT_TYPE_QUERY != pStmt->sql.type) {
|
|
tscError("useResult only for query statement");
|
|
return NULL;
|
|
}
|
|
|
|
return pStmt->exec.pRequest;
|
|
}
|