import taos import sys import time import socket import os import threading import math from datetime import datetime from new_test_framework.utils import ( tdLog, tdSql, tdCom, tdDnodes, ) COMPARE_DATA = 0 COMPARE_LEN = 1 class TestEmptyIdentifier: def setup_class(self): tdLog.debug(f"start to excute {__file__}") def test_empty_identifier(self): """Empty Identifier Validation Test Test empty identifier `` handling in 28 specific SQL statements and verify error code -2147473897: 1. Test [Table Operations] with Empty Identifiers 1.1 show create table `` - verify error -2147473897 1.2 show create table test.`` - verify error -2147473897 1.3 create table `` (ts timestamp, c1 int) - verify error -2147473897 1.4 drop table `` - verify error -2147473897 1.5 alter table `` add column c2 int - verify error -2147473897 1.6 select * from `` - verify error -2147473897 2. Test [Column and Tag Operations] with Empty Identifiers 2.1 alter table meters add column `` int - verify error -2147473897 2.2 alter table meters drop column `` - verify error -2147473897 2.3 alter stable meters add tag `` int - verify error -2147473897 2.4 alter stable meters rename tag cc `` - verify error -2147473897 2.5 alter stable meters drop tag `` - verify error -2147473897 3. Test [Data Manipulation] with Empty Identifiers 3.1 insert into `` select * from t0 - verify error -2147473897 3.2 insert into t100 using `` tags('', '') values(1,1,1) - verify error -2147473897 3.3 insert into `` values(1,1,1) - verify error -2147473897 4. Test [View Operations] with Empty Identifiers 4.1 create view `` as select count(*) from meters interval(10s) - verify error -2147473897 4.2 create view ``.view1 as select count(*) from meters - verify error -2147473897 4.3 drop view `` - verify error -2147473897 4.4 drop view ``.st1 - verify error -2147473897 5. Test [TSMA Operations] with Empty Identifiers 5.1 create tsma `` on meters function(count(c1)) interval(1m) - verify error -2147473897 5.2 create tsma tsma1 on `` function(count(c1)) interval(1m) - verify error -2147473897 6. Test [Stream Operations] with Empty Identifiers 6.1 create stream `` interval(10s) sliding(10s) from meters into st1 as select count(*) from meters - verify error -2147473897 6.2 create stream stream1 interval(10s) sliding(10s) from meters into `` as select count(*) from meters - verify error -2147473897 6.3 create stream stream1 interval(10s) sliding(10s) from meters into st1 as select count(*) from `` - verify error -2147473897 6.4 create stream stream1 interval(10s) sliding(10s) from meters stream_options(max_delay(100s)) into st1 as select count(*) from `` - verify error -2147473897 6.5 create stream stream1 interval(10s) sliding(10s) from `` stream_options(max_delay(100s)) into st1 as select count(*) from meters - verify error -2147473897 7. Test [Topic Operations] with Empty Identifiers 7.1 create topic `` as select count(*) from meters interval(10s) - verify error -2147473897 7.2 drop topic `` - verify error -2147473897 8. Test [Error Code Verification] for All Cases 8.1 Execute all 28 SQL statements with empty identifiers 8.2 Verify each returns exact error code -2147473897 8.3 Confirm error message consistency 8.4 Validate connection stability after errors Catalog: - SQL:SyntaxValidation:EmptyIdentifier Since: v3.3.7.0 Labels: common,ci Jira: None History: - 2025-07-22 Beryl Migrated to new test framework """ self.prepareTestEnv() self.excute_empty_identifier() def create_database(self,tdSql, dbName,dropFlag=1,vgroups=2,replica=1, duration:str='1d'): if dropFlag == 1: tdSql.execute("drop database if exists %s"%(dbName)) tdSql.execute("create database if not exists %s vgroups %d replica %d duration %s"%(dbName, vgroups, replica, duration)) tdLog.debug("complete to create database %s"%(dbName)) return def create_stable(self,tdSql, paraDict): colString = tdCom.gen_column_type_str(colname_prefix=paraDict["colPrefix"], column_elm_list=paraDict["colSchema"]) tagString = tdCom.gen_tag_type_str(tagname_prefix=paraDict["tagPrefix"], tag_elm_list=paraDict["tagSchema"]) sqlString = f"create table if not exists %s.%s (%s) tags (%s)"%(paraDict["dbName"], paraDict["stbName"], colString, tagString) tdLog.debug("%s"%(sqlString)) tdSql.execute(sqlString) return def create_ctable(self,tdSql=None, dbName='dbx',stbName='stb',ctbPrefix='ctb',ctbNum=1,ctbStartIdx=0): for i in range(ctbNum): sqlString = "create table %s.%s%d using %s.%s tags(%d, 'tb%d', 'tb%d', %d, %d, %d)" % \ (dbName,ctbPrefix,i+ctbStartIdx,dbName,stbName,(i+ctbStartIdx) % 5,i+ctbStartIdx,i+ctbStartIdx,i+ctbStartIdx,i+ctbStartIdx,i+ctbStartIdx) tdSql.execute(sqlString) tdLog.debug("complete to create %d child tables by %s.%s" %(ctbNum, dbName, stbName)) return def insert_data(self,tdSql,dbName,ctbPrefix,ctbNum,rowsPerTbl,batchNum,startTs,tsStep): tdLog.debug("start to insert data ............") tdSql.execute("use %s" %dbName) pre_insert = "insert into " sql = pre_insert for i in range(ctbNum): rowsBatched = 0 sql += " %s%d values "%(ctbPrefix,i) for j in range(rowsPerTbl): if (i < ctbNum/2): sql += "(%d, %d, %d, %d,%d,%d,%d,true,'binary%d', 'nchar%d') "%(startTs + j*tsStep, j%10, j%10, j%10, j%10, j%10, j%10, j%10, j%10) else: sql += "(%d, %d, NULL, %d,NULL,%d,%d,true,'binary%d', 'nchar%d') "%(startTs + j*tsStep, j%10, j%10, j%10, j%10, j%10, j%10) rowsBatched += 1 if ((rowsBatched == batchNum) or (j == rowsPerTbl - 1)): tdSql.execute(sql) rowsBatched = 0 if j < rowsPerTbl - 1: sql = "insert into %s%d values " %(ctbPrefix,i) else: sql = "insert into " if sql != pre_insert: tdSql.execute(sql) tdLog.debug("insert data ............ [OK]") return def prepareTestEnv(self): tdLog.printNoPrefix("======== prepare test env include database, stable, ctables, and insert data: ") paraDict = {'dbName': 'test', 'dropFlag': 1, 'vgroups': 2, 'stbName': 'meters', 'colPrefix': 'c', 'tagPrefix': 't', 'colSchema': [{'type': 'INT', 'count':1}, {'type': 'BIGINT', 'count':1}, {'type': 'FLOAT', 'count':1}, {'type': 'DOUBLE', 'count':1}, {'type': 'smallint', 'count':1}, {'type': 'tinyint', 'count':1}, {'type': 'bool', 'count':1}, {'type': 'binary', 'len':10, 'count':1}, {'type': 'nchar', 'len':10, 'count':1}], 'tagSchema': [{'type': 'INT', 'count':1},{'type': 'nchar', 'len':20, 'count':1},{'type': 'binary', 'len':20, 'count':1},{'type': 'BIGINT', 'count':1},{'type': 'smallint', 'count':1},{'type': 'DOUBLE', 'count':1}], 'ctbPrefix': 't', 'ctbStartIdx': 0, 'ctbNum': 100, 'rowsPerTbl': 10000, 'batchNum': 3000, 'startTs': 1537146000000, 'tsStep': 600000} paraDict['vgroups'] = 4 paraDict['ctbNum'] = 10 paraDict['rowsPerTbl'] = 10000 tdLog.info("create database") self.create_database(tdSql=tdSql, dbName=paraDict["dbName"], dropFlag=paraDict["dropFlag"], vgroups=paraDict["vgroups"], replica=1, duration='1h') tdLog.info("create stb") self.create_stable(tdSql=tdSql, paraDict=paraDict) tdLog.info("create child tables") self.create_ctable(tdSql=tdSql, dbName=paraDict["dbName"], \ stbName=paraDict["stbName"],ctbPrefix=paraDict["ctbPrefix"],\ ctbNum=paraDict["ctbNum"],ctbStartIdx=paraDict["ctbStartIdx"]) self.insert_data(tdSql=tdSql, dbName=paraDict["dbName"],\ ctbPrefix=paraDict["ctbPrefix"],ctbNum=paraDict["ctbNum"],\ rowsPerTbl=paraDict["rowsPerTbl"],batchNum=paraDict["batchNum"],\ startTs=paraDict["startTs"],tsStep=paraDict["tsStep"]) return def execute_sql_and_expect_err(self, sql: str, err: int): tdSql.error(sql, err) def excute_empty_identifier(self): ## invalid identifier sqls = [ 'show create table ``', 'show create table test.``', 'create table `` (ts timestamp, c1 int)', 'drop table ``', 'alter table `` add column c2 int', 'select * from ``', 'alter table meters add column `` int', 'alter table meters drop column ``', 'alter stable meters add tag `` int', 'alter stable meters rename tag cc ``', 'alter stable meters drop tag ``', 'insert into `` select * from t0', 'insert into t100 using `` tags('', '') values(1,1,1)', 'create view `` as select count(*) from meters interval(10s)', 'create view ``.view1 as select count(*) from meters' 'create tsma `` on meters function(count(c1)) interval(1m)', 'create tsma tsma1 on `` function(count(c1)) interval(1m)', 'create stream `` interval(10s) sliding(10s) from meters into st1 as select count(*) from meters', 'create stream stream1 interval(10s) sliding(10s) from meters into `` as select count(*) from meters', 'create stream stream1 interval(10s) sliding(10s) from meters into st1 as select count(*) from ``', 'create stream stream1 interval(10s) sliding(10s) from meters stream_options(max_delay(100s)) into st1 as select count(*) from ``', 'create stream stream1 interval(10s) sliding(10s) from `` stream_options(max_delay(100s)) into st1 as select count(*) from meters', 'drop view ``', 'drop view ``.st1', 'create topic `` as select count(*) from meters interval(10s)', 'drop topic ``', 'insert into `` values(1,1,1)', ] for sql in sqls: self.execute_sql_and_expect_err(sql, -2147473897)