/* * Copyright (c) 2019 TAOS Data, Inc. * * This program is free software: you can use, redistribute, and/or modify * it under the terms of the GNU Affero General Public License, version 3 * or later ("AGPL"), as published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see . */ #include #include #include #include #include "taos.h" int32_t init_env() { TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0); if (pConn == NULL) { return -1; } TAOS_RES* pRes = taos_query(pConn, "create database if not exists abc1 vgroups 2"); if (taos_errno(pRes) != 0) { printf("error in create db, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); #if 0 pRes = taos_query(pConn, "create database if not exists abc2 vgroups 20"); if (taos_errno(pRes) != 0) { printf("error in create db, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); #endif pRes = taos_query(pConn, "use abc1"); if (taos_errno(pRes) != 0) { printf("error in use db, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); pRes = taos_query(pConn, "create stable if not exists st1 (ts timestamp, k int) tags(a int)"); if (taos_errno(pRes) != 0) { printf("failed to create super table st1, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); pRes = taos_query(pConn, "create table if not exists tu1 using st1 tags(1)"); if (taos_errno(pRes) != 0) { printf("failed to create child table tu1, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); pRes = taos_query(pConn, "create table if not exists tu2 using st1 tags(2)"); if (taos_errno(pRes) != 0) { printf("failed to create child table tu2, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); pRes = taos_query(pConn, "create table if not exists tu3 using st1 tags(3)"); if (taos_errno(pRes) != 0) { printf("failed to create child table tu3, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); return 0; } int32_t create_stream() { printf("create stream\n"); TAOS_RES* pRes; TAOS* pConn = taos_connect("localhost", "root", "taosdata", NULL, 0); if (pConn == NULL) { return -1; } pRes = taos_query(pConn, "use abc1"); if (taos_errno(pRes) != 0) { printf("error in use db, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); /*const char* sql = "select min(k), max(k), sum(k) from tu1";*/ /*const char* sql = "select min(k), max(k), sum(k) as sum_of_k from st1";*/ /*const char* sql = "select sum(k) from tu1 interval(10m)";*/ /*pRes = tmq_create_stream(pConn, "stream1", "out1", sql);*/ pRes = taos_query( pConn, "create stream stream1 trigger max_delay 10s into outstb as select _wstartts, sum(k) from st1 partition " "by tbname session(ts, 10s) "); if (taos_errno(pRes) != 0) { printf("failed to create stream stream1, reason:%s\n", taos_errstr(pRes)); return -1; } taos_free_result(pRes); taos_close(pConn); return 0; } int main(int argc, char* argv[]) { int code; if (argc > 1) { printf("env init\n"); code = init_env(); } create_stream(); }