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Merge pull request #2428 from taosdata/hotfix/sangshuduo/fix-c-demo-bug 

fix c demo bugs.
This commit is contained in:
Shengliang Guan 2020-06-23 15:45:05 +08:00 committed by GitHub
parent 17995563b4 9a5aeb8175
commit 893c44d639
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 10 additions and 6 deletions
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16
tests/examples/c/demo.c
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@ -44,7 +44,9 @@ int main(int argc, char *argv[]) {
taos_query(taos, "drop database demo"); taos_query(taos, "drop database demo");
if (taos_query(taos, "create database demo") != 0) {
result = taos_query(taos, "create database demo");
if (result == NULL) {
printf("failed to create database, reason:%s\n", taos_errstr(taos)); printf("failed to create database, reason:%s\n", taos_errstr(taos));
exit(1); exit(1);
} }
@ -53,7 +55,7 @@ int main(int argc, char *argv[]) {
taos_query(taos, "use demo"); taos_query(taos, "use demo");
// create table // create table
if (taos_query(taos, "create table m1 (ts timestamp, speed int)") != 0) { if (taos_query(taos, "create table m1 (ts timestamp, ti tinyint, si smallint, i int, bi bigint, f float, d double, b binary(10))") == 0) {
printf("failed to create table, reason:%s\n", taos_errstr(taos)); printf("failed to create table, reason:%s\n", taos_errstr(taos));
exit(1); exit(1);
} }
@ -65,9 +67,10 @@ int main(int argc, char *argv[]) {
// insert 10 records // insert 10 records
int i = 0; int i = 0;
for (i = 0; i < 10; ++i) { for (i = 0; i < 10; ++i) {
sprintf(qstr, "insert into m1 values (%ld, %d)", 1546300800000 + i * 1000, i * 10); sprintf(qstr, "insert into m1 values (%ld, %d, %d, %d, %d, %f, %lf, '%s')", 1546300800000 + i * 1000, i, i, i, i*10000000, i*1.0, i*2.0, "hello");
printf("qstr: %s\n", qstr);
if (taos_query(taos, qstr)) { if (taos_query(taos, qstr)) {
printf("failed to insert row: %i, reason:%s\n", i, taos_errstr(taos)); printf("insert row: %i, reason:%s\n", i, taos_errstr(taos));
} }
//sleep(1); //sleep(1);
} }
@ -83,10 +86,11 @@ int main(int argc, char *argv[]) {
TAOS_ROW row; TAOS_ROW row;
int rows = 0; int rows = 0;
int num_fields = taos_field_count(taos); int num_fields = taos_field_count(result);
TAOS_FIELD *fields = taos_fetch_fields(result); TAOS_FIELD *fields = taos_fetch_fields(result);
char temp[256]; char temp[1024];
printf("num_fields = %d\n", num_fields);
printf("select * from table, result:\n"); printf("select * from table, result:\n");
// fetch the records row by row // fetch the records row by row
while ((row = taos_fetch_row(result))) { while ((row = taos_fetch_row(result))) {