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fix taosd crash query ins_tags with empty nchar tag

This commit is contained in:
wangjiaming0909 2024-04-03 10:07:02 +08:00
parent da4c84d297
commit c2afd95c4e
2 changed files with 14 additions and 4 deletions
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5
source/libs/executor/src/sysscanoperator.c
View File

@ -983,7 +983,10 @@ static int32_t sysTableUserTagsFillOneTableTags(const SSysTableScanInfo* pInfo,
: (3 + DBL_MANT_DIG - DBL_MIN_EXP + VARSTR_HEADER_SIZE);
tagVarChar = taosMemoryCalloc(1, bufSize + 1);
int32_t len = -1;
convertTagDataToStr(varDataVal(tagVarChar), tagType, tagData, tagLen, &len);
if (tagLen > 0)
convertTagDataToStr(varDataVal(tagVarChar), tagType, tagData, tagLen, &len);
else
len = 0;
varDataSetLen(tagVarChar, len);
}
}

13
tests/system-test/0-others/information_schema.py
View File

@ -50,10 +50,11 @@ class TDTestCase:
self.tbnum = 20
self.rowNum = 10
self.tag_dict = {
't0':'int'
't0':'int',
't1':f'nchar({self.nchar_length})'
}
self.tag_values = [
f'1'
f'1', '""'
]
self.binary_str = 'taosdata'
self.nchar_str = '涛思数据'
@ -72,7 +73,7 @@ class TDTestCase:
tdSql.execute(f'use {self.dbname}')
tdSql.execute(self.setsql.set_create_stable_sql(self.stbname,self.column_dict,self.tag_dict))
for i in range(self.tbnum):
tdSql.execute(f"create table {self.stbname}_{i} using {self.stbname} tags({self.tag_values[0]})")
tdSql.execute(f"create table {self.stbname}_{i} using {self.stbname} tags({self.tag_values[0]}, {self.tag_values[1]})")
self.insert_data(self.column_dict,f'{self.stbname}_{i}',self.rowNum)
def count_check(self):
tdSql.query('select count(*) from information_schema.ins_tables')
@ -313,6 +314,11 @@ class TDTestCase:
tdSql.error('alter cluster "activeCode" ""')
tdSql.execute('alter cluster "activeCode" "revoked"')
def test_query_ins_tags(self):
sql = f'select tag_name, tag_value from information_schema.ins_tags where table_name = "{self.stbname}_0"'
tdSql.query(sql)
tdSql.checkRows(2)
def run(self):
self.prepare_data()
self.count_check()
@ -322,6 +328,7 @@ class TDTestCase:
self.ins_stable_check2()
self.ins_dnodes_check()
self.ins_grants_check()
self.test_query_ins_tags()
def stop(self):