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TDengine
提交 b7e0259c 编写于 作者: Z zhaoyanggh
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move test to right place

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tests/examples/c/apitest.c
浏览文件 @ b7e0259c
......@@ -231,700 +231,6 @@ static void verify_subscribe(TAOS* taos) {
taos_unsubscribe(tsub, 0);
}
void verify_prepare(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// 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), u1 tinyint unsigned, u2 smallint unsigned, u4 int unsigned, u8 bigint unsigned)";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
// 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];
uint8_t u1;
uint16_t u2;
uint32_t u4;
uint64_t u8;
} v = {0};
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_BIND params[14];
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;
params[10].buffer_type = TSDB_DATA_TYPE_UTINYINT;
params[10].buffer_length = sizeof(v.u1);
params[10].buffer = &v.u1;
params[10].length = &params[10].buffer_length;
params[10].is_null = NULL;
params[11].buffer_type = TSDB_DATA_TYPE_USMALLINT;
params[11].buffer_length = sizeof(v.u2);
params[11].buffer = &v.u2;
params[11].length = &params[11].buffer_length;
params[11].is_null = NULL;
params[12].buffer_type = TSDB_DATA_TYPE_UINT;
params[12].buffer_length = sizeof(v.u4);
params[12].buffer = &v.u4;
params[12].length = &params[12].buffer_length;
params[12].is_null = NULL;
params[13].buffer_type = TSDB_DATA_TYPE_UBIGINT;
params[13].buffer_length = sizeof(v.u8);
params[13].buffer = &v.u8;
params[13].length = &params[13].buffer_length;
params[13].is_null = NULL;
int is_null = 1;
sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
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); ++j) {
v.bin[j] = (char)(i + '0');
}
v.u1 = (uint8_t)i;
v.u2 = (uint16_t)(i * 2);
v.u4 = (uint32_t)(i * 4);
v.u8 = (uint64_t)(i * 8);
taos_stmt_bind_param(stmt, params);
taos_stmt_add_batch(stmt);
}
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
taos_stmt_close(stmt);
// 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("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
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);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
char temp[256] = {0};
rows++;
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
taos_free_result(result);
taos_stmt_close(stmt);
}
void verify_prepare2(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// 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))";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
// insert 10 records
struct {
int64_t ts[10];
int8_t b[10];
int8_t v1[10];
int16_t v2[10];
int32_t v4[10];
int64_t v8[10];
float f4[10];
double f8[10];
char bin[10][40];
char blob[10][80];
} v;
int32_t* t8_len = malloc(sizeof(int32_t) * 10);
int32_t* t16_len = malloc(sizeof(int32_t) * 10);
int32_t* t32_len = malloc(sizeof(int32_t) * 10);
int32_t* t64_len = malloc(sizeof(int32_t) * 10);
int32_t* float_len = malloc(sizeof(int32_t) * 10);
int32_t* double_len = malloc(sizeof(int32_t) * 10);
int32_t* bin_len = malloc(sizeof(int32_t) * 10);
int32_t* blob_len = malloc(sizeof(int32_t) * 10);
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_MULTI_BIND params[10];
char is_null[10] = {0};
params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
params[0].buffer_length = sizeof(v.ts[0]);
params[0].buffer = v.ts;
params[0].length = t64_len;
params[0].is_null = is_null;
params[0].num = 10;
params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
params[1].buffer_length = sizeof(v.b[0]);
params[1].buffer = v.b;
params[1].length = t8_len;
params[1].is_null = is_null;
params[1].num = 10;
params[2].buffer_type = TSDB_DATA_TYPE_TINYINT;
params[2].buffer_length = sizeof(v.v1[0]);
params[2].buffer = v.v1;
params[2].length = t8_len;
params[2].is_null = is_null;
params[2].num = 10;
params[3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
params[3].buffer_length = sizeof(v.v2[0]);
params[3].buffer = v.v2;
params[3].length = t16_len;
params[3].is_null = is_null;
params[3].num = 10;
params[4].buffer_type = TSDB_DATA_TYPE_INT;
params[4].buffer_length = sizeof(v.v4[0]);
params[4].buffer = v.v4;
params[4].length = t32_len;
params[4].is_null = is_null;
params[4].num = 10;
params[5].buffer_type = TSDB_DATA_TYPE_BIGINT;
params[5].buffer_length = sizeof(v.v8[0]);
params[5].buffer = v.v8;
params[5].length = t64_len;
params[5].is_null = is_null;
params[5].num = 10;
params[6].buffer_type = TSDB_DATA_TYPE_FLOAT;
params[6].buffer_length = sizeof(v.f4[0]);
params[6].buffer = v.f4;
params[6].length = float_len;
params[6].is_null = is_null;
params[6].num = 10;
params[7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
params[7].buffer_length = sizeof(v.f8[0]);
params[7].buffer = v.f8;
params[7].length = double_len;
params[7].is_null = is_null;
params[7].num = 10;
params[8].buffer_type = TSDB_DATA_TYPE_BINARY;
params[8].buffer_length = sizeof(v.bin[0]);
params[8].buffer = v.bin;
params[8].length = bin_len;
params[8].is_null = is_null;
params[8].num = 10;
params[9].buffer_type = TSDB_DATA_TYPE_NCHAR;
params[9].buffer_length = sizeof(v.blob[0]);
params[9].buffer = v.blob;
params[9].length = blob_len;
params[9].is_null = is_null;
params[9].num = 10;
sql = "insert into ? (ts, b, v1, v2, v4, v8, f4, f8, bin, blob) values(?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
code = taos_stmt_set_tbname(stmt, "m1");
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
int64_t ts = 1591060628000;
for (int i = 0; i < 10; ++i) {
v.ts[i] = ts++;
is_null[i] = 0;
v.b[i] = (int8_t)i % 2;
v.v1[i] = (int8_t)i;
v.v2[i] = (int16_t)(i * 2);
v.v4[i] = (int32_t)(i * 4);
v.v8[i] = (int64_t)(i * 8);
v.f4[i] = (float)(i * 40);
v.f8[i] = (double)(i * 80);
for (int j = 0; j < sizeof(v.bin[0]); ++j) {
v.bin[i][j] = (char)(i + '0');
}
strcpy(v.blob[i], "一二三四五六七八九十");
t8_len[i] = sizeof(int8_t);
t16_len[i] = sizeof(int16_t);
t32_len[i] = sizeof(int32_t);
t64_len[i] = sizeof(int64_t);
float_len[i] = sizeof(float);
double_len[i] = sizeof(double);
bin_len[i] = sizeof(v.bin[0]);
blob_len[i] = (int32_t)strlen(v.blob[i]);
}
taos_stmt_bind_param_batch(stmt, params);
taos_stmt_add_batch(stmt);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
taos_stmt_close(stmt);
// query the records
stmt = taos_stmt_init(taos);
taos_stmt_prepare(stmt, "SELECT * FROM m1 WHERE v1 > ? AND v2 < ?", 0);
TAOS_BIND qparams[2];
int8_t v1 = 5;
int16_t v2 = 15;
qparams[0].buffer_type = TSDB_DATA_TYPE_TINYINT;
qparams[0].buffer_length = sizeof(v1);
qparams[0].buffer = &v1;
qparams[0].length = &qparams[0].buffer_length;
qparams[0].is_null = NULL;
qparams[1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
qparams[1].buffer_length = sizeof(v2);
qparams[1].buffer = &v2;
qparams[1].length = &qparams[1].buffer_length;
qparams[1].is_null = NULL;
taos_stmt_bind_param(stmt, qparams);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
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);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
char temp[256] = {0};
rows++;
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
taos_free_result(result);
taos_stmt_close(stmt);
free(t8_len);
free(t16_len);
free(t32_len);
free(t64_len);
free(float_len);
free(double_len);
free(bin_len);
free(blob_len);
}
void verify_prepare3(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// create table
const char* sql =
"create stable st1 (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin "
"binary(40), blob nchar(10)) tags (id1 int, id2 binary(40))";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
return;
}
taos_free_result(result);
TAOS_BIND tags[2];
int32_t id1 = 1;
char id2[40] = "abcdefghijklmnopqrstuvwxyz0123456789";
uintptr_t id2_len = strlen(id2);
tags[0].buffer_type = TSDB_DATA_TYPE_INT;
tags[0].buffer_length = sizeof(int);
tags[0].buffer = &id1;
tags[0].length = NULL;
tags[0].is_null = NULL;
tags[1].buffer_type = TSDB_DATA_TYPE_BINARY;
tags[1].buffer_length = sizeof(id2);
tags[1].buffer = id2;
tags[1].length = &id2_len;
tags[1].is_null = NULL;
// insert 10 records
struct {
int64_t ts[10];
int8_t b[10];
int8_t v1[10];
int16_t v2[10];
int32_t v4[10];
int64_t v8[10];
float f4[10];
double f8[10];
char bin[10][40];
char blob[10][80];
} v;
int32_t* t8_len = malloc(sizeof(int32_t) * 10);
int32_t* t16_len = malloc(sizeof(int32_t) * 10);
int32_t* t32_len = malloc(sizeof(int32_t) * 10);
int32_t* t64_len = malloc(sizeof(int32_t) * 10);
int32_t* float_len = malloc(sizeof(int32_t) * 10);
int32_t* double_len = malloc(sizeof(int32_t) * 10);
int32_t* bin_len = malloc(sizeof(int32_t) * 10);
int32_t* blob_len = malloc(sizeof(int32_t) * 10);
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_MULTI_BIND params[10];
char is_null[10] = {0};
params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
params[0].buffer_length = sizeof(v.ts[0]);
params[0].buffer = v.ts;
params[0].length = t64_len;
params[0].is_null = is_null;
params[0].num = 10;
params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
params[1].buffer_length = sizeof(v.b[0]);
params[1].buffer = v.b;
params[1].length = t8_len;
params[1].is_null = is_null;
params[1].num = 10;
params[2].buffer_type = TSDB_DATA_TYPE_TINYINT;
params[2].buffer_length = sizeof(v.v1[0]);
params[2].buffer = v.v1;
params[2].length = t8_len;
params[2].is_null = is_null;
params[2].num = 10;
params[3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
params[3].buffer_length = sizeof(v.v2[0]);
params[3].buffer = v.v2;
params[3].length = t16_len;
params[3].is_null = is_null;
params[3].num = 10;
params[4].buffer_type = TSDB_DATA_TYPE_INT;
params[4].buffer_length = sizeof(v.v4[0]);
params[4].buffer = v.v4;
params[4].length = t32_len;
params[4].is_null = is_null;
params[4].num = 10;
params[5].buffer_type = TSDB_DATA_TYPE_BIGINT;
params[5].buffer_length = sizeof(v.v8[0]);
params[5].buffer = v.v8;
params[5].length = t64_len;
params[5].is_null = is_null;
params[5].num = 10;
params[6].buffer_type = TSDB_DATA_TYPE_FLOAT;
params[6].buffer_length = sizeof(v.f4[0]);
params[6].buffer = v.f4;
params[6].length = float_len;
params[6].is_null = is_null;
params[6].num = 10;
params[7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
params[7].buffer_length = sizeof(v.f8[0]);
params[7].buffer = v.f8;
params[7].length = double_len;
params[7].is_null = is_null;
params[7].num = 10;
params[8].buffer_type = TSDB_DATA_TYPE_BINARY;
params[8].buffer_length = sizeof(v.bin[0]);
params[8].buffer = v.bin;
params[8].length = bin_len;
params[8].is_null = is_null;
params[8].num = 10;
params[9].buffer_type = TSDB_DATA_TYPE_NCHAR;
params[9].buffer_length = sizeof(v.blob[0]);
params[9].buffer = v.blob;
params[9].length = blob_len;
params[9].is_null = is_null;
params[9].num = 10;
sql = "insert into ? using st1 tags(?,?) values(?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
code = taos_stmt_set_tbname_tags(stmt, "m1", tags);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
int64_t ts = 1591060628000;
for (int i = 0; i < 10; ++i) {
v.ts[i] = ts++;
is_null[i] = 0;
v.b[i] = (int8_t)i % 2;
v.v1[i] = (int8_t)i;
v.v2[i] = (int16_t)(i * 2);
v.v4[i] = (int32_t)(i * 4);
v.v8[i] = (int64_t)(i * 8);
v.f4[i] = (float)(i * 40);
v.f8[i] = (double)(i * 80);
for (int j = 0; j < sizeof(v.bin[0]); ++j) {
v.bin[i][j] = (char)(i + '0');
}
strcpy(v.blob[i], "一二三四五六七八九十");
t8_len[i] = sizeof(int8_t);
t16_len[i] = sizeof(int16_t);
t32_len[i] = sizeof(int32_t);
t64_len[i] = sizeof(int64_t);
float_len[i] = sizeof(float);
double_len[i] = sizeof(double);
bin_len[i] = sizeof(v.bin[0]);
blob_len[i] = (int32_t)strlen(v.blob[i]);
}
taos_stmt_bind_param_batch(stmt, params);
taos_stmt_add_batch(stmt);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
taos_stmt_close(stmt);
// query the records
stmt = taos_stmt_init(taos);
taos_stmt_prepare(stmt, "SELECT * FROM m1 WHERE v1 > ? AND v2 < ?", 0);
TAOS_BIND qparams[2];
int8_t v1 = 5;
int16_t v2 = 15;
qparams[0].buffer_type = TSDB_DATA_TYPE_TINYINT;
qparams[0].buffer_length = sizeof(v1);
qparams[0].buffer = &v1;
qparams[0].length = &qparams[0].buffer_length;
qparams[0].is_null = NULL;
qparams[1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
qparams[1].buffer_length = sizeof(v2);
qparams[1].buffer = &v2;
qparams[1].length = &qparams[1].buffer_length;
qparams[1].is_null = NULL;
taos_stmt_bind_param(stmt, qparams);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
return;
}
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);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
char temp[256] = {0};
rows++;
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
taos_free_result(result);
taos_stmt_close(stmt);
free(t8_len);
free(t16_len);
free(t32_len);
free(t64_len);
free(float_len);
free(double_len);
free(bin_len);
free(blob_len);
}
void retrieve_callback(void* param, TAOS_RES* tres, int numOfRows) {
if (numOfRows > 0) {
printf("%d rows async retrieved\n", numOfRows);
......@@ -1075,14 +381,6 @@ int main(int argc, char* argv[]) {
printf("*********** verify subscribe ************\n");
verify_subscribe(taos);
printf("************ verify prepare *************\n");
verify_prepare(taos);
printf("************ verify prepare2 *************\n");
verify_prepare2(taos);
printf("************ verify prepare3 *************\n");
verify_prepare3(taos);
printf("************ verify stream *************\n");
// verify_stream(taos);
printf("done\n");
......
tests/examples/c/prepare.c
浏览文件 @ b7e0259c
......@@ -4,59 +4,43 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "taos.h"
#include <taos.h>
#include <unistd.h>
void taosMsleep(int mseconds);
int main(int argc, char *argv[]) {
TAOS * taos;
TAOS_RES * result;
int code;
TAOS_STMT *stmt;
// connect to server
if (argc < 2) {
printf("please input server ip \n");
return 0;
}
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);
}
result = taos_query(taos, "drop database demo");
void verify_prepare(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
result = taos_query(taos, "create database demo");
code = taos_errno(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("failed to create database, reason:%s\n", taos_errstr(result));
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(1);
exit(EXIT_FAILURE)
}
taos_free_result(result);
result = taos_query(taos, "use demo");
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// create table
const char *sql =
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))";
"binary(40), blob nchar(10), u1 tinyint unsigned, u2 smallint unsigned, u4 int unsigned, u8 bigint unsigned)";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("failed to create table, reason:%s\n", taos_errstr(result));
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(1);
exit(EXIT_FAILURE)
}
taos_free_result(result);
// sleep for one second to make sure table is created on data node
// taosMsleep(1000);
// insert 10 records
struct {
int64_t ts;
......@@ -69,10 +53,14 @@ int main(int argc, char *argv[]) {
double f8;
char bin[40];
char blob[80];
uint8_t u1;
uint16_t u2;
uint32_t u4;
uint64_t u8;
} v = {0};
stmt = taos_stmt_init(taos);
TAOS_BIND params[10];
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_BIND params[14];
params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
params[0].buffer_length = sizeof(v.ts);
params[0].buffer = &v.ts;
......@@ -134,12 +122,38 @@ int main(int argc, char *argv[]) {
params[9].length = &params[9].buffer_length;
params[9].is_null = NULL;
params[10].buffer_type = TSDB_DATA_TYPE_UTINYINT;
params[10].buffer_length = sizeof(v.u1);
params[10].buffer = &v.u1;
params[10].length = &params[10].buffer_length;
params[10].is_null = NULL;
params[11].buffer_type = TSDB_DATA_TYPE_USMALLINT;
params[11].buffer_length = sizeof(v.u2);
params[11].buffer = &v.u2;
params[11].length = &params[11].buffer_length;
params[11].is_null = NULL;
params[12].buffer_type = TSDB_DATA_TYPE_UINT;
params[12].buffer_length = sizeof(v.u4);
params[12].buffer = &v.u4;
params[12].length = &params[12].buffer_length;
params[12].is_null = NULL;
params[13].buffer_type = TSDB_DATA_TYPE_UBIGINT;
params[13].buffer_length = sizeof(v.u8);
params[13].buffer = &v.u8;
params[13].length = &params[13].buffer_length;
params[13].is_null = NULL;
int is_null = 1;
sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?)";
sql = "insert into m1 values(?,?,?,?,?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("failed to execute taos_stmt_prepare. code:0x%x\n", code);
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
v.ts = 1591060628000;
for (int i = 0; i < 10; ++i) {
......@@ -154,16 +168,21 @@ int main(int argc, char *argv[]) {
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) {
for (int j = 0; j < sizeof(v.bin); ++j) {
v.bin[j] = (char)(i + '0');
}
v.u1 = (uint8_t)i;
v.u2 = (uint16_t)(i * 2);
v.u4 = (uint32_t)(i * 4);
v.u8 = (uint64_t)(i * 8);
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);
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE);
}
taos_stmt_close(stmt);
......@@ -174,8 +193,234 @@ int main(int argc, char *argv[]) {
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);
printf("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE);
}
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);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
char temp[256] = {0};
rows++;
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
taos_free_result(result);
taos_stmt_close(stmt);
}
void verify_prepare2(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(EXIT_FAILURE)
}
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// 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))";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(EXIT_FAILURE)
}
taos_free_result(result);
// insert 10 records
struct {
int64_t ts[10];
int8_t b[10];
int8_t v1[10];
int16_t v2[10];
int32_t v4[10];
int64_t v8[10];
float f4[10];
double f8[10];
char bin[10][40];
char blob[10][80];
} v;
int32_t* t8_len = malloc(sizeof(int32_t) * 10);
int32_t* t16_len = malloc(sizeof(int32_t) * 10);
int32_t* t32_len = malloc(sizeof(int32_t) * 10);
int32_t* t64_len = malloc(sizeof(int32_t) * 10);
int32_t* float_len = malloc(sizeof(int32_t) * 10);
int32_t* double_len = malloc(sizeof(int32_t) * 10);
int32_t* bin_len = malloc(sizeof(int32_t) * 10);
int32_t* blob_len = malloc(sizeof(int32_t) * 10);
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_MULTI_BIND params[10];
char is_null[10] = {0};
params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
params[0].buffer_length = sizeof(v.ts[0]);
params[0].buffer = v.ts;
params[0].length = t64_len;
params[0].is_null = is_null;
params[0].num = 10;
params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
params[1].buffer_length = sizeof(v.b[0]);
params[1].buffer = v.b;
params[1].length = t8_len;
params[1].is_null = is_null;
params[1].num = 10;
params[2].buffer_type = TSDB_DATA_TYPE_TINYINT;
params[2].buffer_length = sizeof(v.v1[0]);
params[2].buffer = v.v1;
params[2].length = t8_len;
params[2].is_null = is_null;
params[2].num = 10;
params[3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
params[3].buffer_length = sizeof(v.v2[0]);
params[3].buffer = v.v2;
params[3].length = t16_len;
params[3].is_null = is_null;
params[3].num = 10;
params[4].buffer_type = TSDB_DATA_TYPE_INT;
params[4].buffer_length = sizeof(v.v4[0]);
params[4].buffer = v.v4;
params[4].length = t32_len;
params[4].is_null = is_null;
params[4].num = 10;
params[5].buffer_type = TSDB_DATA_TYPE_BIGINT;
params[5].buffer_length = sizeof(v.v8[0]);
params[5].buffer = v.v8;
params[5].length = t64_len;
params[5].is_null = is_null;
params[5].num = 10;
params[6].buffer_type = TSDB_DATA_TYPE_FLOAT;
params[6].buffer_length = sizeof(v.f4[0]);
params[6].buffer = v.f4;
params[6].length = float_len;
params[6].is_null = is_null;
params[6].num = 10;
params[7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
params[7].buffer_length = sizeof(v.f8[0]);
params[7].buffer = v.f8;
params[7].length = double_len;
params[7].is_null = is_null;
params[7].num = 10;
params[8].buffer_type = TSDB_DATA_TYPE_BINARY;
params[8].buffer_length = sizeof(v.bin[0]);
params[8].buffer = v.bin;
params[8].length = bin_len;
params[8].is_null = is_null;
params[8].num = 10;
params[9].buffer_type = TSDB_DATA_TYPE_NCHAR;
params[9].buffer_length = sizeof(v.blob[0]);
params[9].buffer = v.blob;
params[9].length = blob_len;
params[9].is_null = is_null;
params[9].num = 10;
sql = "insert into ? (ts, b, v1, v2, v4, v8, f4, f8, bin, blob) values(?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
code = taos_stmt_set_tbname(stmt, "m1");
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
int64_t ts = 1591060628000;
for (int i = 0; i < 10; ++i) {
v.ts[i] = ts++;
is_null[i] = 0;
v.b[i] = (int8_t)i % 2;
v.v1[i] = (int8_t)i;
v.v2[i] = (int16_t)(i * 2);
v.v4[i] = (int32_t)(i * 4);
v.v8[i] = (int64_t)(i * 8);
v.f4[i] = (float)(i * 40);
v.f8[i] = (double)(i * 80);
for (int j = 0; j < sizeof(v.bin[0]); ++j) {
v.bin[i][j] = (char)(i + '0');
}
strcpy(v.blob[i], "一二三四五六七八九十");
t8_len[i] = sizeof(int8_t);
t16_len[i] = sizeof(int16_t);
t32_len[i] = sizeof(int32_t);
t64_len[i] = sizeof(int64_t);
float_len[i] = sizeof(float);
double_len[i] = sizeof(double);
bin_len[i] = sizeof(v.bin[0]);
blob_len[i] = (int32_t)strlen(v.blob[i]);
}
taos_stmt_bind_param_batch(stmt, params);
taos_stmt_add_batch(stmt);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
taos_stmt_close(stmt);
// query the records
stmt = taos_stmt_init(taos);
taos_stmt_prepare(stmt, "SELECT * FROM m1 WHERE v1 > ? AND v2 < ?", 0);
TAOS_BIND qparams[2];
int8_t v1 = 5;
int16_t v2 = 15;
qparams[0].buffer_type = TSDB_DATA_TYPE_TINYINT;
qparams[0].buffer_length = sizeof(v1);
qparams[0].buffer = &v1;
qparams[0].length = &qparams[0].buffer_length;
qparams[0].is_null = NULL;
qparams[1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
qparams[1].buffer_length = sizeof(v2);
qparams[1].buffer = &v2;
qparams[1].length = &qparams[1].buffer_length;
qparams[1].is_null = NULL;
taos_stmt_bind_param(stmt, qparams);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
result = taos_stmt_use_result(stmt);
......@@ -183,7 +428,7 @@ int main(int argc, char *argv[]) {
TAOS_ROW row;
int rows = 0;
int num_fields = taos_num_fields(result);
TAOS_FIELD *fields = taos_fetch_fields(result);
TAOS_FIELD* fields = taos_fetch_fields(result);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
......@@ -192,14 +437,294 @@ int main(int argc, char *argv[]) {
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
if (rows == 2) {
printf("two rows are fetched as expectation\n");
} else {
printf("expect two rows, but %d rows are fetched\n", rows);
taos_free_result(result);
taos_stmt_close(stmt);
free(t8_len);
free(t16_len);
free(t32_len);
free(t64_len);
free(float_len);
free(double_len);
free(bin_len);
free(blob_len);
}
void verify_prepare3(TAOS* taos) {
TAOS_RES* result = taos_query(taos, "drop database if exists test;");
taos_free_result(result);
usleep(100000);
result = taos_query(taos, "create database test;");
int code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create database, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(EXIT_FAILURE)
}
taos_free_result(result);
usleep(100000);
taos_select_db(taos, "test");
// create table
const char* sql =
"create stable st1 (ts timestamp, b bool, v1 tinyint, v2 smallint, v4 int, v8 bigint, f4 float, f8 double, bin "
"binary(40), blob nchar(10)) tags (id1 int, id2 binary(40))";
result = taos_query(taos, sql);
code = taos_errno(result);
if (code != 0) {
printf("\033[31mfailed to create table, reason:%s\033[0m\n", taos_errstr(result));
taos_free_result(result);
exit(EXIT_FAILURE)
}
taos_free_result(result);
TAOS_BIND tags[2];
int32_t id1 = 1;
char id2[40] = "abcdefghijklmnopqrstuvwxyz0123456789";
uintptr_t id2_len = strlen(id2);
tags[0].buffer_type = TSDB_DATA_TYPE_INT;
tags[0].buffer_length = sizeof(int);
tags[0].buffer = &id1;
tags[0].length = NULL;
tags[0].is_null = NULL;
tags[1].buffer_type = TSDB_DATA_TYPE_BINARY;
tags[1].buffer_length = sizeof(id2);
tags[1].buffer = id2;
tags[1].length = &id2_len;
tags[1].is_null = NULL;
// insert 10 records
struct {
int64_t ts[10];
int8_t b[10];
int8_t v1[10];
int16_t v2[10];
int32_t v4[10];
int64_t v8[10];
float f4[10];
double f8[10];
char bin[10][40];
char blob[10][80];
} v;
int32_t* t8_len = malloc(sizeof(int32_t) * 10);
int32_t* t16_len = malloc(sizeof(int32_t) * 10);
int32_t* t32_len = malloc(sizeof(int32_t) * 10);
int32_t* t64_len = malloc(sizeof(int32_t) * 10);
int32_t* float_len = malloc(sizeof(int32_t) * 10);
int32_t* double_len = malloc(sizeof(int32_t) * 10);
int32_t* bin_len = malloc(sizeof(int32_t) * 10);
int32_t* blob_len = malloc(sizeof(int32_t) * 10);
TAOS_STMT* stmt = taos_stmt_init(taos);
TAOS_MULTI_BIND params[10];
char is_null[10] = {0};
params[0].buffer_type = TSDB_DATA_TYPE_TIMESTAMP;
params[0].buffer_length = sizeof(v.ts[0]);
params[0].buffer = v.ts;
params[0].length = t64_len;
params[0].is_null = is_null;
params[0].num = 10;
params[1].buffer_type = TSDB_DATA_TYPE_BOOL;
params[1].buffer_length = sizeof(v.b[0]);
params[1].buffer = v.b;
params[1].length = t8_len;
params[1].is_null = is_null;
params[1].num = 10;
params[2].buffer_type = TSDB_DATA_TYPE_TINYINT;
params[2].buffer_length = sizeof(v.v1[0]);
params[2].buffer = v.v1;
params[2].length = t8_len;
params[2].is_null = is_null;
params[2].num = 10;
params[3].buffer_type = TSDB_DATA_TYPE_SMALLINT;
params[3].buffer_length = sizeof(v.v2[0]);
params[3].buffer = v.v2;
params[3].length = t16_len;
params[3].is_null = is_null;
params[3].num = 10;
params[4].buffer_type = TSDB_DATA_TYPE_INT;
params[4].buffer_length = sizeof(v.v4[0]);
params[4].buffer = v.v4;
params[4].length = t32_len;
params[4].is_null = is_null;
params[4].num = 10;
params[5].buffer_type = TSDB_DATA_TYPE_BIGINT;
params[5].buffer_length = sizeof(v.v8[0]);
params[5].buffer = v.v8;
params[5].length = t64_len;
params[5].is_null = is_null;
params[5].num = 10;
params[6].buffer_type = TSDB_DATA_TYPE_FLOAT;
params[6].buffer_length = sizeof(v.f4[0]);
params[6].buffer = v.f4;
params[6].length = float_len;
params[6].is_null = is_null;
params[6].num = 10;
params[7].buffer_type = TSDB_DATA_TYPE_DOUBLE;
params[7].buffer_length = sizeof(v.f8[0]);
params[7].buffer = v.f8;
params[7].length = double_len;
params[7].is_null = is_null;
params[7].num = 10;
params[8].buffer_type = TSDB_DATA_TYPE_BINARY;
params[8].buffer_length = sizeof(v.bin[0]);
params[8].buffer = v.bin;
params[8].length = bin_len;
params[8].is_null = is_null;
params[8].num = 10;
params[9].buffer_type = TSDB_DATA_TYPE_NCHAR;
params[9].buffer_length = sizeof(v.blob[0]);
params[9].buffer = v.blob;
params[9].length = blob_len;
params[9].is_null = is_null;
params[9].num = 10;
sql = "insert into ? using st1 tags(?,?) values(?,?,?,?,?,?,?,?,?,?)";
code = taos_stmt_prepare(stmt, sql, 0);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
code = taos_stmt_set_tbname_tags(stmt, "m1", tags);
if (code != 0) {
printf("\033[31mfailed to execute taos_stmt_prepare. error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
int64_t ts = 1591060628000;
for (int i = 0; i < 10; ++i) {
v.ts[i] = ts++;
is_null[i] = 0;
v.b[i] = (int8_t)i % 2;
v.v1[i] = (int8_t)i;
v.v2[i] = (int16_t)(i * 2);
v.v4[i] = (int32_t)(i * 4);
v.v8[i] = (int64_t)(i * 8);
v.f4[i] = (float)(i * 40);
v.f8[i] = (double)(i * 80);
for (int j = 0; j < sizeof(v.bin[0]); ++j) {
v.bin[i][j] = (char)(i + '0');
}
strcpy(v.blob[i], "一二三四五六七八九十");
t8_len[i] = sizeof(int8_t);
t16_len[i] = sizeof(int16_t);
t32_len[i] = sizeof(int32_t);
t64_len[i] = sizeof(int64_t);
float_len[i] = sizeof(float);
double_len[i] = sizeof(double);
bin_len[i] = sizeof(v.bin[0]);
blob_len[i] = (int32_t)strlen(v.blob[i]);
}
taos_stmt_bind_param_batch(stmt, params);
taos_stmt_add_batch(stmt);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute insert statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
taos_stmt_close(stmt);
// query the records
stmt = taos_stmt_init(taos);
taos_stmt_prepare(stmt, "SELECT * FROM m1 WHERE v1 > ? AND v2 < ?", 0);
TAOS_BIND qparams[2];
int8_t v1 = 5;
int16_t v2 = 15;
qparams[0].buffer_type = TSDB_DATA_TYPE_TINYINT;
qparams[0].buffer_length = sizeof(v1);
qparams[0].buffer = &v1;
qparams[0].length = &qparams[0].buffer_length;
qparams[0].is_null = NULL;
qparams[1].buffer_type = TSDB_DATA_TYPE_SMALLINT;
qparams[1].buffer_length = sizeof(v2);
qparams[1].buffer = &v2;
qparams[1].length = &qparams[1].buffer_length;
qparams[1].is_null = NULL;
taos_stmt_bind_param(stmt, qparams);
if (taos_stmt_execute(stmt) != 0) {
printf("\033[31mfailed to execute select statement.error:%s\033[0m\n", taos_stmt_errstr(stmt));
taos_stmt_close(stmt);
exit(EXIT_FAILURE)
}
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);
// fetch the records row by row
while ((row = taos_fetch_row(result))) {
char temp[256] = {0};
rows++;
taos_print_row(temp, row, fields, num_fields);
printf("%s\n", temp);
}
taos_free_result(result);
taos_stmt_close(stmt);
return 0;
free(t8_len);
free(t16_len);
free(t32_len);
free(t64_len);
free(float_len);
free(double_len);
free(bin_len);
free(blob_len);
}
int main(int argc, char* argv[]) {
const char* host = "127.0.0.1";
const char* user = "root";
const char* passwd = "taosdata";
taos_options(TSDB_OPTION_TIMEZONE, "GMT-8");
TAOS* taos = taos_connect(host, user, passwd, "", 0);
if (taos == NULL) {
printf("\033[31mfailed to connect to db, reason:%s\033[0m\n", taos_errstr(taos));
exit(1);
}
char* info = taos_get_server_info(taos);
printf("server info: %s\n", info);
info = taos_get_client_info(taos);
printf("client info: %s\n", info);
printf("************ verify prepare *************\n");
verify_prepare(taos);
printf("************ verify prepare2 *************\n");
verify_prepare2(taos);
printf("************ verify prepare3 *************\n");
verify_prepare3(taos);
printf("************ verify prepare4 *************\n");
exit(EXIT_SUCCESS);
}
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