Duplicated Data in Supertable

[sailadv-hsystem]

Bug Description

In random cases the supertable allow to insert duplicated values with the same TS and TAGS.

Expected Behavior
I would like to not have duplicate value for the same TS and TAGS in the supertable.

Screenshots

Table Description
taos> describe boat;

field	type	length	note
ts	TIMESTAMP	8
variable_value_float	FLOAT	4
variable_value_string	VARCHAR	100
original_ts	TIMESTAMP	8
boat_uuid	VARCHAR	36	TAG
variable_name	VARCHAR	50	TAG
Query OK, 6 row(s) in set (0.001758s)

Query of duplicated data
taos> select ts, count(* ) from hdata.boat where boat_uuid="d17bb161-4732-4115-b2c5-7f0bf07e2034" and variable_name= 'Alert 3' and ts < '2023-12-30' and ts > '2023-09-01' group by ts having count(*) > 1;

ts	count(* )
2023-11-20 13:15:50.000000	2
2023-10-23 10:42:35.000000	2
Query OK, 2 row(s) in set (14.703768s)

Detail of duplicated data
taos> select TAGS TBNAME, *, CHAR_LENGTH(variable_name), LENGTH(variable_name), CHAR_LENGTH(boat_uuid), LENGTH(boat_uuid), CHAR_LENGTH(TBNAME), LENGTH(TBNAME) from boat where ts = '2023-11-20 13:15:50.000000' and boat_uuid="d17bb161-4732-4115-b2c5-7f0bf07e2034" and variable_name= 'Alert 3'\G;

*************************** 1.row ***************************

Column	Value
tbname	boat_d17bb161_4732_4115_b2c5_7f0bf07e2034_b7e677d69d25d8fb5efa73fc944782cf
ts	2023-11-20 13:15:50.000000
variable_value_float	0.0000000
variable_value_string	NULL
original_ts	2023-11-20 13:15:50.000000
boat_uuid	d17bb161-4732-4115-b2c5-7f0bf07e2034
variable_name	Alert 3
char_length(variable_name)	7
length(variable_name)	7
char_length(boat_uuid)	36
length(boat_uuid)	36
char_length(tbname)	74
length(tbname)	74

*************************** 2.row ***************************

Column	Value
tbname	boat_d17bb161_4732_4115_b2c5_7f0bf07e2034_b7e677d69d25d8fb5efa73fc944782cf
ts	2023-11-20 13:15:50.000000
variable_value_float	0.0000000
variable_value_string	NULL
original_ts	2023-11-20 13:15:50.000000
boat_uuid	d17bb161-4732-4115-b2c5-7f0bf07e2034
variable_name	Bilge Alert Cabin 3
char_length(variable_name)	7
length(variable_name)	7
char_length(boat_uuid)	36
length(boat_uuid)	36
char_length(tbname)	74
length(tbname)	74
Query OK, 2 row(s) in set (0.012173s)

Environment (please complete the following information):

• OS: 22.04.1-Ubuntu
• Memory, CPU, current Disk Space: 16GB, 4vCPU, Available 629G of Space (as main node)
• TDengine Version 3.1.1.0

Additional Context
Originally we had a different version of the database (3.0.0) and we updated TDEngine (with a data re-upload) trying to solve the issue.