Merge pull request #2119 from taosdata/hotfix/test

[TD-489]

src/client/inc/tsclient.h

@@ -317,6 +317,7 @@ typedef struct SSqlObj {
   SRpcIpSet        ipList;
   char             freed : 4;
   char             listed : 4;
+  uint32_t         insertType;
   tsem_t           rspSem;
   SSqlCmd          cmd;
   SSqlRes          res;
@@ -402,6 +403,7 @@ void tscCloseTscObj(STscObj *pObj);
 
 TAOS *taos_connect_a(char *ip, char *user, char *pass, char *db, uint16_t port, void (*fp)(void *, TAOS_RES *, int),
                      void *param, void **taos);
+void waitForQueryRsp(void *param, TAOS_RES *tres, int code) ;
 
 void doAsyncQuery(STscObj *pObj, SSqlObj *pSql, void (*fp)(), void *param, const char *sqlstr, size_t sqlLen);
 

src/client/src/tscAsync.c

@@ -482,6 +482,14 @@ void tscTableMetaCallBack(void *param, TAOS_RES *res, int code) {
         }
       } else {
         code = tsParseSql(pSql, false);
+        if ((pQueryInfo->type & TSDB_QUERY_TYPE_STMT_INSERT) == TSDB_QUERY_TYPE_STMT_INSERT) {
+          STableMetaInfo* pTableMetaInfo = tscGetTableMetaInfoFromCmd(pCmd, pCmd->clauseIndex, 0);
+          code = tscGetTableMeta(pSql, pTableMetaInfo);
+          assert(code == TSDB_CODE_SUCCESS && pTableMetaInfo->pTableMeta != NULL);
+          (*pSql->fp)(pSql->param, NULL, code);
+          return;
+        }
+        
         if (code == TSDB_CODE_ACTION_IN_PROGRESS) return;
       }
     }

src/client/src/tscParseInsert.c

@@ -1312,6 +1312,7 @@ int tsParseInsertSql(SSqlObj *pSql) {
   tscGetQueryInfoDetailSafely(pCmd, pCmd->clauseIndex, &pQueryInfo);
 
   TSDB_QUERY_SET_TYPE(pQueryInfo->type, TSDB_QUERY_TYPE_INSERT);
+  TSDB_QUERY_SET_TYPE(pQueryInfo->type, pSql->insertType);
 
   sToken = tStrGetToken(pSql->sqlstr, &index, false, 0, NULL);
   if (sToken.type != TK_INTO) {
@@ -1339,7 +1340,7 @@ int tsParseSql(SSqlObj *pSql, bool initialParse) {
      * Set the fp before parse the sql string, in case of getTableMeta failed, in which
      * the error handle callback function can rightfully restore the user-defined callback function (fp).
      */
-    if (initialParse) {
+    if (initialParse && (pSql->insertType != TSDB_QUERY_TYPE_STMT_INSERT)) {
       pSql->fetchFp = pSql->fp;
       pSql->fp = (void(*)())tscHandleMultivnodeInsert;
     }

src/client/src/tscPrepare.c

@@ -12,6 +12,7 @@
  * 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 "os.h"
 
 #include "taos.h"
 #include "tsclient.h"
@@ -20,6 +21,7 @@
 #include "taosmsg.h"
 #include "tstrbuild.h"
 #include "tscLog.h"
+#include "tscSubquery.h"
 
 int tsParseInsertSql(SSqlObj *pSql);
 int taos_query_imp(STscObj* pObj, SSqlObj* pSql);
@@ -262,7 +264,11 @@ static char* normalStmtBuildSql(STscStmt* stmt) {
 
 static int doBindParam(char* data, SParamInfo* param, TAOS_BIND* bind) {
   if (bind->is_null != NULL && *(bind->is_null)) {
-    setNull(data, param->type, param->bytes);
+    if (param->type == TSDB_DATA_TYPE_BINARY || param->type == TSDB_DATA_TYPE_NCHAR) {
+      setVardataNull(data + param->offset, param->type);
+    } else {
+      setNull(data + param->offset, param->type, param->bytes);
+    }
     return TSDB_CODE_SUCCESS;
   }
 
@@ -297,14 +303,17 @@ static int doBindParam(char* data, SParamInfo* param, TAOS_BIND* bind) {
         return TSDB_CODE_INVALID_VALUE;
       }
       size = (short)*bind->length;
-      break;
+      STR_WITH_SIZE_TO_VARSTR(data + param->offset, bind->buffer, size);
-    
-    case TSDB_DATA_TYPE_NCHAR:
-      if (!taosMbsToUcs4(bind->buffer, *bind->length, data + param->offset, param->bytes, NULL)) {
-        return TSDB_CODE_INVALID_VALUE;
-      }
       return TSDB_CODE_SUCCESS;
-
+    
+    case TSDB_DATA_TYPE_NCHAR: {
+      size_t output = 0;
+      if (!taosMbsToUcs4(bind->buffer, *bind->length, varDataVal(data + param->offset), param->bytes - VARSTR_HEADER_SIZE, &output)) {
+        return TSDB_CODE_INVALID_VALUE;
+      }      
+      varDataSetLen(data + param->offset, output);
+      return TSDB_CODE_SUCCESS;
+    }
     default:
       assert(false);
       return TSDB_CODE_INVALID_VALUE;
@@ -383,14 +392,6 @@ static int insertStmtAddBatch(STscStmt* stmt) {
   return TSDB_CODE_SUCCESS;
 }
 
-static int insertStmtPrepare(STscStmt* stmt) {
-  SSqlObj *pSql = stmt->pSql;
-  pSql->cmd.numOfParams = 0;
-  pSql->cmd.batchSize = 0;
-
-  return tsParseInsertSql(pSql);
-}
-
 static int insertStmtReset(STscStmt* pStmt) {
   SSqlCmd* pCmd = &pStmt->pSql->cmd;
   if (pCmd->batchSize > 2) {
@@ -451,14 +452,16 @@ static int insertStmtExecute(STscStmt* stmt) {
   
   pRes->qhandle = 0;
 
+  pSql->insertType = 0;
+  pSql->fetchFp    = waitForQueryRsp;
+  pSql->fp         = (void(*)())tscHandleMultivnodeInsert;
+
   tscDoQuery(pSql);
 
-  // tscTrace("%p SQL result:%d, %s pObj:%p", pSql, pRes->code, taos_errstr(taos), pObj);
+  // wait for the callback function to post the semaphore
-  if (pRes->code != TSDB_CODE_SUCCESS) {
+  tsem_wait(&pSql->rspSem);
-    tscPartiallyFreeSqlObj(pSql);
+  return pSql->res.code;
-  }
 
-  return pRes->code;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -478,6 +481,7 @@ TAOS_STMT* taos_stmt_init(TAOS* taos) {
     tscError("failed to allocate memory for statement");
     return NULL;
   }
+  pStmt->taos = pObj;
 
   SSqlObj* pSql = calloc(1, sizeof(SSqlObj));
   if (pSql == NULL) {
@@ -488,8 +492,10 @@ TAOS_STMT* taos_stmt_init(TAOS* taos) {
   }
 
   tsem_init(&pSql->rspSem, 0, 0);
-  pSql->signature = pSql;
+  pSql->signature     = pSql;
-  pSql->pTscObj = pObj;
+  pSql->pTscObj       = pObj;
+  pSql->pTscObj->pSql = pSql;
+  pSql->maxRetry      = TSDB_MAX_REPLICA_NUM;
 
   pStmt->pSql = pSql;
   return pStmt;
@@ -497,22 +503,55 @@ TAOS_STMT* taos_stmt_init(TAOS* taos) {
 
 int taos_stmt_prepare(TAOS_STMT* stmt, const char* sql, unsigned long length) {
   STscStmt* pStmt = (STscStmt*)stmt;
-  if (length == 0) {
+
-    length = strlen(sql);
+  if (stmt == NULL || pStmt->taos == NULL || pStmt->pSql == NULL) {
+    terrno = TSDB_CODE_DISCONNECTED;
+    return TSDB_CODE_DISCONNECTED;
   }
-  char* sqlstr = (char*)malloc(length + 1);
+
-  if (sqlstr == NULL) {
+  SSqlObj* pSql = pStmt->pSql;
-    tscError("failed to malloc sql string buffer");
+  size_t   sqlLen = strlen(sql);
+  
+  //doAsyncQuery(pObj, pSql, waitForQueryRsp, taos, sqlstr, sqlLen);
+  SSqlCmd *pCmd    = &pSql->cmd;
+  SSqlRes *pRes    = &pSql->res;
+  pSql->param      = (void*)pStmt->taos;
+  pSql->fp         = waitForQueryRsp;
+  pSql->insertType = TSDB_QUERY_TYPE_STMT_INSERT;
+  
+  if (TSDB_CODE_SUCCESS != tscAllocPayload(pCmd, TSDB_DEFAULT_PAYLOAD_SIZE)) {
+    tscError("%p failed to malloc payload buffer", pSql);
     return TSDB_CODE_CLI_OUT_OF_MEMORY;
   }
-  memcpy(sqlstr, sql, length);
+  
-  sqlstr[length] = 0;
+  pSql->sqlstr = realloc(pSql->sqlstr, sqlLen + 1);
-  strtolower(sqlstr, sqlstr);
+  
+  if (pSql->sqlstr == NULL) {
+    tscError("%p failed to malloc sql string buffer", pSql);
+    free(pCmd->payload);
+    return TSDB_CODE_CLI_OUT_OF_MEMORY;
+  }
+  
+  pRes->qhandle = 0;
+  pRes->numOfRows = 1;
+  
+  strtolower(pSql->sqlstr, sql);
+  tscDump("%p SQL: %s", pSql, pSql->sqlstr);
 
-  pStmt->pSql->sqlstr = sqlstr;
+  if (tscIsInsertData(pSql->sqlstr)) {  
-  if (tscIsInsertData(sqlstr)) {
     pStmt->isInsert = true;
-    return insertStmtPrepare(pStmt);
+    
+    pSql->cmd.numOfParams = 0;
+    pSql->cmd.batchSize   = 0;
+    
+    int32_t code = tsParseSql(pSql, true);
+    if (code == TSDB_CODE_ACTION_IN_PROGRESS) {
+      // wait for the callback function to post the semaphore
+      tsem_wait(&pSql->rspSem);
+      return pSql->res.code;
+    }
+    
+    return code;
   }
 
   pStmt->isInsert = false;
@@ -574,7 +613,7 @@ int taos_stmt_execute(TAOS_STMT* stmt) {
     } else {
       tfree(pStmt->pSql->sqlstr);
       pStmt->pSql->sqlstr = sql;
-      ret = taos_query_imp(pStmt->taos, pStmt->pSql);
+      ret = taos_query(pStmt->taos, pStmt->pSql->sqlstr);
     }
   }
   return ret;

src/client/src/tscSql.c

@@ -264,7 +264,7 @@ int taos_query_imp(STscObj *pObj, SSqlObj *pSql) {
   return pRes->code;
 }
 
-static void waitForQueryRsp(void *param, TAOS_RES *tres, int code) {
+void waitForQueryRsp(void *param, TAOS_RES *tres, int code) {
   assert(param != NULL);
   SSqlObj *pSql = ((STscObj *)param)->pSql;
   

src/inc/taosdef.h

@@ -331,6 +331,7 @@ void tsDataSwap(void *pLeft, void *pRight, int32_t type, int32_t size);
 #define TSDB_QUERY_TYPE_TAG_FILTER_QUERY              0x400u
 #define TSDB_QUERY_TYPE_INSERT                        0x100u    // insert type
 #define TSDB_QUERY_TYPE_MULTITABLE_QUERY              0x200u
+#define TSDB_QUERY_TYPE_STMT_INSERT                   0x800u    // stmt insert type
 
 #define TSDB_QUERY_HAS_TYPE(x, _type)         (((x) & (_type)) != 0)
 #define TSDB_QUERY_SET_TYPE(x, _type)         ((x) |= (_type))

tests/examples/c/prepare.c

@@ -0,0 +1,195 @@
+// TAOS standard API example. The same syntax as MySQL, but only a subet 
+// to compile: gcc -o prepare prepare.c -ltaos
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "taos.h"
+
+
+void taosMsleep(int mseconds);
+
+int main(int argc, char *argv[])
+{
+  TAOS     *taos;
+  TAOS_RES *result;
+  TAOS_STMT *stmt;
+
+  // connect to server
+  if (argc < 2) {
+    printf("please input server ip \n");
+    return 0;
+  }
+
+  // init TAOS
+  taos_init();
+
+  taos = taos_connect(argv[1], "root", "taosdata", NULL, 0);
+  if (taos == NULL) {
+    printf("failed to connect to db, reason:%s\n", taos_errstr(taos));
+    exit(1);
+  }
+
+  taos_query(taos, "drop database demo");
+  if (taos_query(taos, "create database demo") != 0) {
+    printf("failed to create database, reason:%s\n", taos_errstr(taos));
+    exit(1);
+  }
+
+  taos_query(taos, "use demo");
+
+
+  // create table
+  const char* sql = "create table m1 (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin binary(40), blob nchar(10))";
+  if (taos_query(taos, sql) != 0) {
+    printf("failed to create table, reason:%s\n", taos_errstr(taos));
+    exit(1);
+  }
+
+  // sleep for one second to make sure table is created on data node
+  // taosMsleep(1000);
+
+  // insert 10 records
+  struct {
+      int64_t ts;
+      int8_t b;
+      int8_t v1;
+      int16_t v2;
+      int32_t v4;
+      int64_t v8;
+      float f4;
+      double f8;
+      char bin[40];
+      char blob[80];
+  } v = {0};
+
+  stmt = taos_stmt_init(taos);
+  TAOS_BIND params[10];
+  params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
+  params[0].buffer_length = sizeof(v.ts);
+  params[0].buffer = &v.ts;
+  params[0].length = &params[0].buffer_length;
+  params[0].is_null = NULL;
+
+  params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
+  params[1].buffer_length = sizeof(v.b);
+  params[1].buffer = &v.b;
+  params[1].length = &params[1].buffer_length;
+  params[1].is_null = NULL;
+
+  params[2].buffer_type = TSDB_DATA_TYPE_TINYINT;
+  params[2].buffer_length = sizeof(v.v1);
+  params[2].buffer = &v.v1;
+  params[2].length = &params[2].buffer_length;
+  params[2].is_null = NULL;
+
+  params[3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
+  params[3].buffer_length = sizeof(v.v2);
+  params[3].buffer = &v.v2;
+  params[3].length = &params[3].buffer_length;
+  params[3].is_null = NULL;
+
+  params[4].buffer_type = TSDB_DATA_TYPE_INT;
+  params[4].buffer_length = sizeof(v.v4);
+  params[4].buffer = &v.v4;
+  params[4].length = &params[4].buffer_length;
+  params[4].is_null = NULL;
+
+  params[5].buffer_type = TSDB_DATA_TYPE_BIGINT;
+  params[5].buffer_length = sizeof(v.v8);
+  params[5].buffer = &v.v8;
+  params[5].length = &params[5].buffer_length;
+  params[5].is_null = NULL;
+
+  params[6].buffer_type = TSDB_DATA_TYPE_FLOAT;
+  params[6].buffer_length = sizeof(v.f4);
+  params[6].buffer = &v.f4;
+  params[6].length = &params[6].buffer_length;
+  params[6].is_null = NULL;
+
+  params[7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
+  params[7].buffer_length = sizeof(v.f8);
+  params[7].buffer = &v.f8;
+  params[7].length = &params[7].buffer_length;
+  params[7].is_null = NULL;
+
+  params[8].buffer_type = TSDB_DATA_TYPE_BINARY;
+  params[8].buffer_length = sizeof(v.bin);
+  params[8].buffer = v.bin;
+  params[8].length = &params[8].buffer_length;
+  params[8].is_null = NULL;
+
+  strcpy(v.blob, "一二三四五六七八九十");
+  params[9].buffer_type = TSDB_DATA_TYPE_NCHAR;
+  params[9].buffer_length = strlen(v.blob);
+  params[9].buffer = v.blob;
+  params[9].length = &params[9].buffer_length;
+  params[9].is_null = NULL;
+
+  int is_null = 1;
+
+  sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?)";
+  int code = taos_stmt_prepare(stmt, sql, 0);
+  if (code != 0){
+    printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
+  }
+  v.ts = 1591060628000;
+  for (int i = 0; i < 10; ++i) {
+    v.ts += 1;
+    for (int j = 1; j < 10; ++j) {
+      params[j].is_null = ((i == j) ? &is_null : 0);
+    }
+    v.b = (int8_t)i % 2;
+    v.v1 = (int8_t)i;
+    v.v2 = (int16_t)(i * 2);
+    v.v4 = (int32_t)(i * 4);
+    v.v8 = (int64_t)(i * 8);
+    v.f4 = (float)(i * 40);
+    v.f8 = (double)(i * 80);
+    for (int j = 0; j < sizeof(v.bin) - 1; ++j) {
+      v.bin[j] = (char)(i + '0');
+    }
+
+    taos_stmt_bind_param(stmt, params);
+    taos_stmt_add_batch(stmt);
+  }
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute insert statement.\n");
+    exit(1);
+  }
+  taos_stmt_close(stmt);
+  printf("==== success inset data ====.\n");
+
+  // query the records
+  stmt = taos_stmt_init(taos);
+  taos_stmt_prepare(stmt, "SELECT * FROM m1 WHERE v1 > ? AND v2 < ?", 0);
+  v.v1 = 5;
+  v.v2 = 15;
+  taos_stmt_bind_param(stmt, params + 2);
+  if (taos_stmt_execute(stmt) != 0) {
+    printf("failed to execute select statement.\n");
+    exit(1);
+  }
+
+  result = taos_stmt_use_result(stmt);
+
+  TAOS_ROW    row;
+  int         rows = 0;
+  int         num_fields = taos_num_fields(result);
+  TAOS_FIELD *fields = taos_fetch_fields(result);
+  char        temp[256];
+
+  // fetch the records row by row
+  while ((row = taos_fetch_row(result))) {
+    rows++;
+    taos_print_row(temp, row, fields, num_fields);
+    printf("%s\n", temp);
+  }
+
+  taos_free_result(result);
+  taos_stmt_close(stmt);
+
+  return getchar();
+}
+