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[td-11818] fix crash in show.

This commit is contained in:
Haojun Liao 2022-01-22 22:59:19 +08:00
parent f5916bcf47
commit cf4b5594d4
2 changed files with 58 additions and 54 deletions
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104
source/client/test/clientTests.cpp
View File

@ -567,58 +567,58 @@ TEST(testCase, show_table_Test) {
// taos_free_result(pRes);
// taos_close(pConn);
//}
//
//TEST(testCase, projection_query_tables) {
// TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
// ASSERT_NE(pConn, nullptr);
//
// TAOS_RES* pRes = taos_query(pConn, "use abc1");
// taos_free_result(pRes);
//
//// pRes = taos_query(pConn, "create stable st1 (ts timestamp, k int) tags(a int)");
//// if (taos_errno(pRes) != 0) {
//// printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
//// }
//// taos_free_result(pRes);
////
//// pRes = taos_query(pConn, "create table tu using st1 tags(1)");
//// if (taos_errno(pRes) != 0) {
//// printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
//// }
//// taos_free_result(pRes);
////
//// for(int32_t i = 0; i < 100; ++i) {
//// char sql[512] = {0};
//// sprintf(sql, "insert into tu values(now+%da, %d)", i, i);
//// TAOS_RES* p = taos_query(pConn, sql);
//// if (taos_errno(p) != 0) {
//// printf("failed to insert data, reason:%s\n", taos_errstr(p));
//// }
////
//// taos_free_result(p);
//// }
//
// pRes = taos_query(pConn, "select * from tu");
// if (taos_errno(pRes) != 0) {
// printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
// taos_free_result(pRes);
// ASSERT_TRUE(false);
// }
//
// TAOS_ROW pRow = NULL;
// TAOS_FIELD* pFields = taos_fetch_fields(pRes);
// int32_t numOfFields = taos_num_fields(pRes);
//
// char str[512] = {0};
// while ((pRow = taos_fetch_row(pRes)) != NULL) {
// int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
// printf("%s\n", str);
// }
//
// taos_free_result(pRes);
// taos_close(pConn);
//}
//
TEST(testCase, projection_query_tables) {
TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
ASSERT_NE(pConn, nullptr);
TAOS_RES* pRes = taos_query(pConn, "use abc1");
taos_free_result(pRes);
pRes = taos_query(pConn, "create stable st1 (ts timestamp, k int) tags(a int)");
if (taos_errno(pRes) != 0) {
printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
}
taos_free_result(pRes);
pRes = taos_query(pConn, "create table tu using st1 tags(1)");
if (taos_errno(pRes) != 0) {
printf("failed to create table tu, reason:%s\n", taos_errstr(pRes));
}
taos_free_result(pRes);
for(int32_t i = 0; i < 100000; ++i) {
char sql[512] = {0};
sprintf(sql, "insert into tu values(now+%da, %d)", i, i);
TAOS_RES* p = taos_query(pConn, sql);
if (taos_errno(p) != 0) {
printf("failed to insert data, reason:%s\n", taos_errstr(p));
}
taos_free_result(p);
}
pRes = taos_query(pConn, "select * from tu");
if (taos_errno(pRes) != 0) {
printf("failed to select from table, reason:%s\n", taos_errstr(pRes));
taos_free_result(pRes);
ASSERT_TRUE(false);
}
TAOS_ROW pRow = NULL;
TAOS_FIELD* pFields = taos_fetch_fields(pRes);
int32_t numOfFields = taos_num_fields(pRes);
char str[512] = {0};
while ((pRow = taos_fetch_row(pRes)) != NULL) {
int32_t code = taos_print_row(str, pRow, pFields, numOfFields);
printf("%s\n", str);
}
taos_free_result(pRes);
taos_close(pConn);
}
//TEST(testCase, projection_query_stables) {
// TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0);
// ASSERT_NE(pConn, nullptr);

8
source/libs/parser/src/dCDAstProcess.c
View File

@ -26,7 +26,7 @@ static int32_t setShowInfo(SShowInfo* pShowInfo, SParseContext* pCtx, void** out
const char* msg4 = "pattern is invalid";
const char* msg5 = "database name is empty";
const char* msg6 = "pattern string is empty";
const char* msg7 = "db is not specified";
const char* msg7 = "database not specified";
/*
* database prefix in pInfo->pMiscInfo->a[0]
* wildcard in like clause in pInfo->pMiscInfo->a[1]
@ -50,7 +50,11 @@ static int32_t setShowInfo(SShowInfo* pShowInfo, SParseContext* pCtx, void** out
char dbFname[TSDB_DB_FNAME_LEN] = {0};
tNameGetFullDbName(&name, dbFname);
catalogGetDBVgroup(pCtx->pCatalog, pCtx->pTransporter, &pCtx->mgmtEpSet, dbFname, false, &array);
int32_t code = catalogGetDBVgroup(pCtx->pCatalog, pCtx->pTransporter, &pCtx->mgmtEpSet, dbFname, false, &array);
if (code != TSDB_CODE_SUCCESS) {
terrno = code;
return code;
}
SVgroupInfo* info = taosArrayGet(array, 0);
pShowReq->head.vgId = htonl(info->vgId);