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TDengine

taosdata / TDengine
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Star 22016
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T
TDengine
提交 6fc5933b 编写于 作者: A Alex Duan
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feat(shell): autotab reset shellEngine.c

上级 ef242d0a
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Showing with 235 addition and 255 deletion
src/kit/shell/src/shellEngine.c
浏览文件 @ 6fc5933b
......@@ -137,7 +137,7 @@ void shellInit(SShellArguments *_args) {
exit(EXIT_SUCCESS);
}
#endif
return;
}
......@@ -262,22 +262,41 @@ void shellRunCommandOnServer(TAOS *con, char command[]) {
int64_t st, et;
wordexp_t full_path;
char * sptr = NULL;
char * tmp = NULL;
char * cptr = NULL;
char * fname = NULL;
bool printMode = false;
int match;
sptr = command;
while ((sptr = tstrstr(sptr, ">>", true)) != NULL) {
// find the last ">>" if any
tmp = sptr;
sptr += 2;
}
sptr = tmp;
if (sptr != NULL) {
// select ... where col >> n op m ...;
match = regex_match(sptr + 2, "^\\s*.{1,}\\s*[\\>|\\<|\\<=|\\>=|=|!=]\\s*.{1,};\\s*$", REG_EXTENDED | REG_ICASE);
if (match == 0) {
// select col >> n from ...;
match = regex_match(sptr + 2, "^\\s*.{1,}\\s{1,}.{1,};\\s*$", REG_EXTENDED | REG_ICASE);
if (match == 0) {
cptr = tstrstr(command, ";", true);
if (cptr != NULL) {
*cptr = '\0';
}
if ((sptr = tstrstr(command, ">>", true)) != NULL) {
cptr = tstrstr(command, ";", true);
if (cptr != NULL) {
*cptr = '\0';
}
if (wordexp(sptr + 2, &full_path, 0) != 0) {
fprintf(stderr, "ERROR: invalid filename: %s\n", sptr + 2);
return;
if (wordexp(sptr + 2, &full_path, 0) != 0) {
fprintf(stderr, "ERROR: invalid filename: %s\n", sptr + 2);
return;
}
*sptr = '\0';
fname = full_path.we_wordv[0];
}
}
*sptr = '\0';
fname = full_path.we_wordv[0];
}
if ((sptr = tstrstr(command, "\\G", true)) != NULL) {
......@@ -305,12 +324,12 @@ void shellRunCommandOnServer(TAOS *con, char command[]) {
int64_t oresult = atomic_load_64(&result);
if (regex_match(command, "^\\s*use\\s+[a-zA-Z0-9_]+\\s*;\\s*$", REG_EXTENDED | REG_ICASE)) {
if (regex_match(command, "^\\s*use\\s+([a-zA-Z0-9_]+|`.+`)\\s*;\\s*$", REG_EXTENDED | REG_ICASE)) {
fprintf(stdout, "Database changed.\n\n");
fflush(stdout);
// call back auto tab module
callbackAutoTab(command, pSql, true);
callbackAutoTab(command, pSql, true);
atomic_store_64(&result, 0);
freeResultWithRid(oresult);
......@@ -346,14 +365,13 @@ void shellRunCommandOnServer(TAOS *con, char command[]) {
} else {
printf("Query interrupted (%s), %d row(s) in set (%.6fs)\n", taos_errstr(pSql), numOfRows, (et - st) / 1E6);
}
} else {
int num_rows_affacted = taos_affected_rows(pSql);
et = taosGetTimestampUs();
printf("Query OK, %d of %d row(s) in database (%.6fs)\n", num_rows_affacted, num_rows_affacted, (et - st) / 1E6);
// call auto tab
callbackAutoTab(command, pSql, false);
callbackAutoTab(command, pSql, false);
}
printf("\n");
......@@ -1144,7 +1162,7 @@ int taos_base64_encode(unsigned char *source, size_t sourcelen, char *target, si
int parse_cloud_dsn() {
if (args.cloudDsn == NULL) {
fprintf(stderr, "Cannot read cloud service info\n");
return -1;
return 1;
} else {
char *start = strstr(args.cloudDsn, "http://");
if (start != NULL) {
......@@ -1160,7 +1178,7 @@ int parse_cloud_dsn() {
char *port = strstr(args.cloudHost, ":");
if ((port == NULL) || (port + strlen(":")) == NULL) {
fprintf(stderr, "Invalid format in TDengine cloud dsn: %s\n", args.cloudDsn);
return -1;
return 1;
}
char *token = strstr(port + strlen(":"), "?token=");
if ((token == NULL) || (token + strlen("?token=")) == NULL ||
......@@ -1218,11 +1236,12 @@ int wsclient_handshake() {
return 0;
}
int wsclient_send(char *strdata, WebSocketFrameType frame) {
int wsclient_send(char *strdata) {
struct timeval tv;
unsigned char mask[4];
unsigned int mask_int;
unsigned long long payload_len;
unsigned char finNopcode;
unsigned int payload_len_small;
unsigned int payload_offset = 6;
unsigned int len_size;
......@@ -1236,6 +1255,7 @@ int wsclient_send(char *strdata, WebSocketFrameType frame) {
mask_int = rand();
memcpy(mask, &mask_int, 4);
payload_len = strlen(strdata);
finNopcode = 0x81;
if (payload_len <= 125) {
frame_size = 6 + payload_len;
payload_len_small = payload_len;
......@@ -1253,7 +1273,7 @@ int wsclient_send(char *strdata, WebSocketFrameType frame) {
}
data = (char *)malloc(frame_size);
memset(data, 0, frame_size);
*data = frame;
*data = finNopcode;
*(data + 1) = payload_len_small | 0x80;
if (payload_len_small == 126) {
payload_len &= 0xffff;
......@@ -1280,16 +1300,13 @@ int wsclient_send(char *strdata, WebSocketFrameType frame) {
sent += i;
}
if (i < 0) {
fprintf(stderr, "websocket send data error, please check the server\n");
free(data);
return -1;
fprintf(stderr, "websocket send data error\n");
}
free(data);
return 0;
}
int wsclient_send_sql(char *command, WS_ACTION_TYPE type, int64_t id) {
int code = 1;
int wsclient_send_sql(char *command, WS_ACTION_TYPE type, int id) {
cJSON *json = cJSON_CreateObject();
cJSON *_args = cJSON_CreateObject();
cJSON_AddNumberToObject(_args, "req_id", 1);
......@@ -1313,22 +1330,15 @@ int wsclient_send_sql(char *command, WS_ACTION_TYPE type, int64_t id) {
cJSON_AddStringToObject(json, "action", "fetch_block");
cJSON_AddNumberToObject(_args, "id", id);
break;
case WS_CLOSE:
cJSON_AddStringToObject(json, "action", "close");
cJSON_AddNumberToObject(_args, "id", id);
break;
}
cJSON_AddItemToObject(json, "args", _args);
char *strdata = NULL;
strdata = cJSON_Print(json);
if (wsclient_send(strdata, TEXT_FRAME)) {
goto OVER;
}
code = 0;
OVER:
free(strdata);
cJSON_Delete(json);
return code;
if (wsclient_send(strdata)) {
free(strdata);
return -1;
}
return 0;
}
int wsclient_conn() {
......@@ -1363,6 +1373,7 @@ int wsclient_conn() {
} else {
fprintf(stdout, "Successfully connect to %s:%d in restful mode\n\n", args.host, args.port);
}
return 0;
} else {
cJSON *message = cJSON_GetObjectItem(root, "message");
......@@ -1377,135 +1388,143 @@ int wsclient_conn() {
return -1;
}
void wsclient_parse_frame(SWSParser * parser, uint8_t * recv_buffer) {
unsigned char msg_opcode = recv_buffer[0] & 0x0F;
unsigned char msg_masked = (recv_buffer[1] >> 7) & 0x01;
int payload_length = 0;
int pos = 2;
int length_field = recv_buffer[1] &(~0x80);
unsigned int mask = 0;
if (length_field <= 125) {
payload_length = length_field;
} else if (length_field == 126) {
payload_length = recv_buffer[2];
for (int i = 0; i < 1; i++) {
payload_length = (payload_length << 8) + recv_buffer[3 + i];
cJSON *wsclient_parse_response() {
char *recv_buffer = calloc(1, 4096);
int start = 0;
bool found = false;
int received = 0;
int bytes;
int recv_length = 4095;
do {
bytes = recv(args.socket, recv_buffer + received, recv_length - received, 0);
if (bytes == -1) {
free(recv_buffer);
fprintf(stderr, "websocket recv failed with bytes: %d\n", bytes);
return NULL;
}
pos += 2;
} else if (length_field == 127) {
payload_length = recv_buffer[2];
for (int i = 0; i < 7; i++) {
payload_length = (payload_length << 8) + recv_buffer[3 + i];
if (!found) {
for (; start < recv_length - received; start++) {
if ((recv_buffer + start)[0] == '{') {
found = true;
break;
}
}
}
pos += 8;
}
if (msg_masked) {
mask = *((unsigned int *) (recv_buffer + pos));
pos += 4;
const uint8_t *c = recv_buffer + pos;
for (int i = 0; i < payload_length; i++) {
recv_buffer[i] = c[i] ^ ((unsigned char *) (&mask))[i % 4];
if (NULL != strstr(recv_buffer + start, "}")) {
break;
}
}
if (msg_opcode == 0x9) {
parser->frame = PING_FRAME;
}
parser->offset = pos;
parser->payload_length = payload_length;
}
char *wsclient_get_response() {
uint8_t recv_buffer[TEMP_RECV_BUF]= {0};
int received = 0;
SWSParser parser;
int bytes = recv(args.socket, recv_buffer + received, TEMP_RECV_BUF - 1, 0);
if (bytes <= 0) {
fprintf(stderr, "websocket recv failed with bytes: %d\n", bytes);
return NULL;
}
wsclient_parse_frame(&parser, recv_buffer);
if (parser.frame == PING_FRAME) {
if (wsclient_send("pong", PONG_FRAME)) {
return NULL;
received += bytes;
if (received >= recv_length) {
recv_length += 4096;
recv_buffer = realloc(recv_buffer + start, recv_length);
}
return wsclient_get_response();
}
char* response = calloc(1, parser.payload_length + 1);
int pos = bytes - parser.offset;
memcpy(response, recv_buffer + parser.offset, pos);
while (pos < parser.payload_length) {
bytes = recv(args.socket, response + pos, parser.payload_length - pos, 0);
pos += bytes;
} while (1);
cJSON *res = cJSON_Parse(recv_buffer + start);
if (res == NULL) {
fprintf(stderr, "fail to parse response into json: %s\n", recv_buffer + start);
free(recv_buffer);
return NULL;
}
response[pos] = '\0';
return response;
return res;
}
int wsclient_fetch_fields(cJSON *query, TAOS_FIELD * fields, int cols) {
cJSON *fields_names = cJSON_GetObjectItem(query, "fields_names");
cJSON *fields_types = cJSON_GetObjectItem(query, "fields_types");
cJSON *fields_lengths = cJSON_GetObjectItem(query, "fields_lengths");
if (!cJSON_IsArray(fields_names) || !cJSON_IsArray(fields_types) || !cJSON_IsArray(fields_lengths)) {
fprintf(stderr, "Invalid or miss 'fields_names'/'fields_types'/'fields_lengths' key in response\n");
return -1;
}
for (int i = 0; i < cols; i++) {
cJSON* field_name = cJSON_GetArrayItem(fields_names, i);
cJSON* field_type = cJSON_GetArrayItem(fields_types, i);
cJSON* field_length = cJSON_GetArrayItem(fields_lengths, i);
if (!cJSON_IsString(field_name) || !cJSON_IsNumber(field_type) || !cJSON_IsNumber(field_length)) {
fprintf(stderr, "Invalid or miss 'field_name'/'field_type'/'field_length' in query response");
return -1;
TAOS_FIELD *wsclient_print_header(cJSON *query, int *pcols, int *pprecison) {
TAOS_FIELD *fields = NULL;
cJSON *fields_count = cJSON_GetObjectItem(query, "fields_count");
if (cJSON_IsNumber(fields_count)) {
*pcols = (int)fields_count->valueint;
fields = calloc((int)fields_count->valueint, sizeof(TAOS_FIELD));
cJSON *fields_names = cJSON_GetObjectItem(query, "fields_names");
cJSON *fields_types = cJSON_GetObjectItem(query, "fields_types");
cJSON *fields_lengths = cJSON_GetObjectItem(query, "fields_lengths");
if (cJSON_IsArray(fields_names) && cJSON_IsArray(fields_types) && cJSON_IsArray(fields_lengths)) {
for (int i = 0; i < (int)fields_count->valueint; i++) {
strncpy(fields[i].name, cJSON_GetArrayItem(fields_names, i)->valuestring, 65);
fields[i].type = (uint8_t)cJSON_GetArrayItem(fields_types, i)->valueint;
fields[i].bytes = (int16_t)cJSON_GetArrayItem(fields_lengths, i)->valueint;
}
cJSON *precision = cJSON_GetObjectItem(query, "precision");
if (cJSON_IsNumber(precision)) {
*pprecison = (int)precision->valueint;
int width[TSDB_MAX_COLUMNS];
for (int col = 0; col < (int)fields_count->valueint; col++) {
width[col] = calcColWidth(fields + col, (int)precision->valueint);
}
printHeader(fields, width, (int)fields_count->valueint);
return fields;
} else {
fprintf(stderr, "Invalid precision key in json\n");
}
} else {
fprintf(stderr, "Invalid fields_names/fields_types/fields_lengths key in json\n");
}
strncpy(fields[i].name, field_name->valuestring, 65);
fields[i].type = (uint8_t)field_type->valueint;
fields[i].bytes = (int16_t)field_length->valueint;
} else {
fprintf(stderr, "Invalid fields_count key in json\n");
}
return 0;
if (fields != NULL) {
free(fields);
}
return NULL;
}
int wsclient_check(cJSON *root, int64_t st, int64_t et) {
cJSON *code = cJSON_GetObjectItem(root, "code");
cJSON *message = cJSON_GetObjectItem(root, "message");
if (!cJSON_IsNumber(code) || !cJSON_IsString(message)) {
fprintf(stderr, "Invalid or miss 'code'/'message' in response\n");
return -1;
}
if (code->valueint != 0) {
fprintf(stderr, "\nDB error: %s (%.6fs)\n", message->valuestring, (et - st) / 1E6);
return -1;
if (cJSON_IsNumber(code)) {
if (code->valueint == 0) {
return 0;
} else {
cJSON *message = cJSON_GetObjectItem(root, "message");
if (cJSON_IsString(message)) {
fprintf(stderr, "\nDB error: %s (%.6fs)\n", message->valuestring, (et - st) / 1E6);
} else {
fprintf(stderr, "Invalid message key in json\n");
}
}
} else {
fprintf(stderr, "Invalid code key in json\n");
}
return 0;
return -1;
}
int wsclient_print_data(int rows, TAOS_FIELD *fields, int cols, int64_t id, int precision, int* pshowed_rows) {
char* response = wsclient_get_response();
if (response == NULL) {
return -1;
char *recv_buffer = calloc(1, 4096);
int col_length = 0;
for (int i = 0; i < cols; i++) {
col_length += fields[i].bytes;
}
int total_recv_len = col_length * rows + 12;
int received = 0;
int recv_length = 4095;
int start = 0;
int pos;
do {
int bytes = recv(args.socket, recv_buffer + received, recv_length - received, 0);
received += bytes;
if (received >= recv_length) {
recv_length += 4096;
recv_buffer = realloc(recv_buffer, recv_length);
}
} while (received < total_recv_len);
if (*(int64_t *)response != id) {
fprintf(stderr, "Mismatch id with %"PRId64" expect %"PRId64"\n", *(int64_t *)response, id);
free(response);
return -1;
while (1) {
if (*(int64_t *)(recv_buffer + start) == id) {
break;
}
start++;
}
int pos;
start += 8;
int width[TSDB_MAX_COLUMNS];
for (int c = 0; c < cols; c++) {
width[c] = calcColWidth(fields + c, precision);
}
for (int i = 0; i < rows; i++) {
if (*pshowed_rows == DEFAULT_RES_SHOW_NUM) {
printf("\n");
printf(" Notice: The result shows only the first %d rows.\n", DEFAULT_RES_SHOW_NUM);
printf("\n");
printf(" You can use Ctrl+C to stop the underway fetching.\n");
printf("\n");
free(response);
free(recv_buffer);
return 0;
}
}
for (int c = 0; c < cols; c++) {
pos = 8;
pos = start;
pos += i * fields[c].bytes;
for (int j = 0; j < c; j++) {
pos += fields[j].bytes * rows;
......@@ -1514,17 +1533,17 @@ int wsclient_print_data(int rows, TAOS_FIELD *fields, int cols, int64_t id, int
int16_t length = 0;
if (fields[c].type == TSDB_DATA_TYPE_NCHAR || fields[c].type == TSDB_DATA_TYPE_BINARY ||
fields[c].type == TSDB_DATA_TYPE_JSON) {
length = *(int16_t *)(response + pos);
length = *(int16_t *)(recv_buffer + pos);
pos += 2;
}
printField((const char *)(response + pos), fields + c, width[c], (int32_t)length, precision);
printField((const char *)(recv_buffer + pos), fields + c, width[c], (int32_t)length, precision);
putchar(' ');
putchar('|');
}
putchar('\n');
*pshowed_rows += 1;
}
free(response);
free(recv_buffer);
return 0;
}
......@@ -1534,129 +1553,90 @@ void wsclient_query(char *command) {
if (wsclient_send_sql(command, WS_QUERY, 0)) {
return;
}
char *query_buffer = wsclient_get_response();
if (query_buffer == NULL) {
return;
}
cJSON* query = cJSON_Parse(query_buffer);
et = taosGetTimestampUs();
cJSON *query = wsclient_parse_response();
if (query == NULL) {
fprintf(stderr, "Failed to parse response into json: %s\n", query_buffer);
free(query_buffer);
return;
}
free(query_buffer);
et = taosGetTimestampUs();
if (wsclient_check(query, st, et)) {
cJSON_Delete(query);
return;
}
cJSON *is_update = cJSON_GetObjectItem(query, "is_update");
cJSON *fields_count = cJSON_GetObjectItem(query, "fields_count");
cJSON *precisionObj = cJSON_GetObjectItem(query, "precision");
cJSON *id = cJSON_GetObjectItem(query, "id");
if (!cJSON_IsBool(is_update) ||
!cJSON_IsNumber(fields_count) ||
!cJSON_IsNumber(precisionObj) ||
!cJSON_IsNumber(id)) {
fprintf(stderr, "Invalid or miss 'is_update'/'fields_count'/'precision'/'id' in query response\n");
cJSON_Delete(query);
return;
}
if (is_update->valueint) {
cJSON *affected_rows = cJSON_GetObjectItem(query, "affected_rows");
if (cJSON_IsNumber(affected_rows)) {
et = taosGetTimestampUs();
printf("Update OK, %d row(s) in set (%.6fs)\n\n", (int)affected_rows->valueint, (et - st) / 1E6);
} else {
fprintf(stderr, "Invalid or miss 'affected_rows' key in response\n");
}
cJSON_Delete(query);
return;
}
ws_id = id->valueint;
int cols = (int)fields_count->valueint;
int precision = (int)precisionObj->valueint;
int64_t total_rows = 0;
int showed_rows = 0;
bool completed = false;
TAOS_FIELD fields[TSDB_MAX_COLUMNS];
if (wsclient_fetch_fields(query, fields, cols)) {
cJSON_Delete(query);
return;
}
int width[TSDB_MAX_COLUMNS];
for (int i = 0; i < cols; ++i) {
width[i] = calcColWidth(fields + i, precision);
}
printHeader(fields, width, cols);
cJSON_Delete(query);
while (!completed && !stop_fetch) {
if (wsclient_send_sql(NULL, WS_FETCH, ws_id)) {
return;
}
char *fetch_buffer = wsclient_get_response();
if (fetch_buffer == NULL) {
return;
}
cJSON *fetch = cJSON_Parse(fetch_buffer);
if (fetch == NULL) {
fprintf(stderr, "failed to parse response into json: %s\n", fetch_buffer);
free(fetch_buffer);
return;
}
free(fetch_buffer);
if (wsclient_check(fetch, st, et)) {
cJSON_Delete(fetch);
return;
}
cJSON *completedObj = cJSON_GetObjectItem(fetch, "completed");
cJSON *rows = cJSON_GetObjectItem(fetch, "rows");
cJSON *lengths = cJSON_GetObjectItem(fetch, "lengths");
if (!cJSON_IsBool(completedObj) || !cJSON_IsNumber(rows)) {
fprintf(stderr, "Invalid or miss 'completed'/'rows' in fetch response\n");
cJSON_Delete(fetch);
return;
}
if (completedObj->valueint) {
cJSON_Delete(fetch);
completed = true;
continue;
}
total_rows += rows->valueint;
if (!cJSON_IsArray(lengths)) {
fprintf(stderr, "Invalid or miss 'lengths' in fetch response\n");
cJSON_Delete(fetch);
return;
}
for (int i = 0; i < cols; i++) {
cJSON* length = cJSON_GetArrayItem(lengths, i);
if (!cJSON_IsNumber(length)) {
fprintf(stderr, "Invalid or miss 'lengths' key in fetch response\n");
cJSON_Delete(fetch);
return;
}
fields[i].bytes = (int16_t)(length->valueint);
}
if (showed_rows < DEFAULT_RES_SHOW_NUM) {
if (wsclient_send_sql(NULL, WS_FETCH_BLOCK, ws_id)) {
cJSON_Delete(fetch);
return;
if (cJSON_IsBool(is_update)) {
if (is_update->valueint) {
cJSON *affected_rows = cJSON_GetObjectItem(query, "affected_rows");
if (cJSON_IsNumber(affected_rows)) {
printf("Update OK, %d row(s) in set (%.6fs)\n\n", (int)affected_rows->valueint, (et - st) / 1E6);
} else {
fprintf(stderr, "Invalid affected_rows key in json\n");
}
if (wsclient_print_data((int)rows->valueint, fields, cols, ws_id, precision, &showed_rows)) {
cJSON_Delete(fetch);
return;
} else {
int cols = 0;
int precision = 0;
int64_t total_rows = 0;
int showed_rows = 0;
TAOS_FIELD *fields = wsclient_print_header(query, &cols, &precision);
if (fields != NULL) {
cJSON *id = cJSON_GetObjectItem(query, "id");
if (cJSON_IsNumber(id)) {
bool completed = false;
while (!completed) {
if (wsclient_send_sql(NULL, WS_FETCH, (int)id->valueint) == 0) {
cJSON *fetch = wsclient_parse_response();
if (fetch != NULL) {
if (wsclient_check(fetch, st, et) == 0) {
cJSON *_completed = cJSON_GetObjectItem(fetch, "completed");
if (cJSON_IsBool(_completed)) {
if (_completed->valueint) {
completed = true;
continue;
}
cJSON *rows = cJSON_GetObjectItem(fetch, "rows");
if (cJSON_IsNumber(rows)) {
total_rows += rows->valueint;
cJSON *lengths = cJSON_GetObjectItem(fetch, "lengths");
if (cJSON_IsArray(lengths)) {
for (int i = 0; i < cols; i++) {
fields[i].bytes = (int16_t)(cJSON_GetArrayItem(lengths, i)->valueint);
}
if (showed_rows < DEFAULT_RES_SHOW_NUM) {
if (wsclient_send_sql(NULL, WS_FETCH_BLOCK, (int)id->valueint) == 0) {
wsclient_print_data((int)rows->valueint, fields, cols, id->valueint, precision, &showed_rows);
}
}
continue;
} else {
fprintf(stderr, "Invalid lengths key in json\n");
}
} else {
fprintf(stderr, "Invalid rows key in json\n");
}
} else {
fprintf(stderr, "Invalid completed key in json\n");
}
}
}
}
fprintf(stderr, "err occured in fetch/fetch_block ws actions\n");
break;
}
if (showed_rows == DEFAULT_RES_SHOW_NUM) {
printf("\n");
printf(" Notice: The result shows only the first %d rows.\n", DEFAULT_RES_SHOW_NUM);
printf("\n");
}
printf("Query OK, %" PRId64 " row(s) in set (%.6fs)\n\n", total_rows, (et - st) / 1E6);
} else {
fprintf(stderr, "Invalid id key in json\n");
}
free(fields);
}
cJSON_Delete(fetch);
continue;
}
}
et = taosGetTimestampUs();
if (stop_fetch) {
printf("Query interrupted, %" PRId64 " row(s) in set (%.6fs)\n\n", total_rows, (et - st) / 1E6);
stop_fetch = false;
} else {
printf("Query OK, %" PRId64 " row(s) in set (%.6fs)\n\n", total_rows, (et - st) / 1E6);
fprintf(stderr, "Invalid is_update key in json\n");
}
cJSON_Delete(query);
return;
}
\ No newline at end of file
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