Error : convert rows to columns in cassandra using pivot -


i supposed write sql query in cassandra show few rows columns. table looks tag_type_id values ranging 1,2,3,..42.

+--------+-----------+-------------------+-------+ |asset_id|tag_type_id|           datetime|  value| +--------+-----------+-------------------+-------+ |       1|         1|2017-07-28 11:25:...|1202.65| |       1|         1|2017-07-28 11:24:...|1212.17| |       1|         1|2017-07-28 11:23:...|1214.51| |       1|         1|2017-07-28 11:21:...|1210.79| |       1|         1|2017-07-28 11:20:...|1207.01| |       1|         1|2017-07-28 11:19:...|1208.17| |       1|         1|2017-07-28 11:18:...| 1205.7| |       1|         1|2017-07-28 11:16:...|1206.11| |       1|         1|2017-07-28 11:13:...|1208.53| |       1|         1|2017-07-28 11:11:...|1207.82| |       1|         1|2017-07-28 11:10:...|1205.05| |       1|         1|2017-07-28 11:09:...|1205.56| |       1|         1|2017-07-28 11:08:...|1204.55| |       1|         1|2017-07-28 11:06:...|  92.17| |       1|         1|2017-07-28 11:05:...|1213.93| |       1|         1|2017-07-28 11:00:...|1205.13| |       1|         1|2017-07-28 10:59:...|1204.42| |       1|         1|2017-07-28 10:54:...|1209.42| |       1|         1|2017-07-28 10:52:...| 1209.6| |       1|         1|2017-07-28 10:50:...|1213.63| +--------+----------+--------------------+-------+

i need see tag_type_id of values 39 , 40 column rather seeing row in same table. want 

asset_id tag_type_id    datetime     value tag_type_id    datetime      value  1            39       2017-07-28 11:25   90   40      2017-07-28 11:25   0.3 1            39       2017-07-28 11:24   91   40      2017-07-28 11:24   0.9 1            39       2017-07-28 11:23   90   40      2017-07-28 11:23   0.024 1            39       2017-07-28 11:22   89   40      2017-07-28 11:22   0.9 1            39       2017-07-28 11:21   91   40      2017-07-28 11:21   0.25

i tried using pivot here throws error:

select * ( select tag_type_id, datetime, value energydata.demodata asset_id = 1 ) src pivot ( sum(value) tag_type_id in ([39],[40]) ) piv;

com.datastax.driver.core.exceptions.syntaxerror: line 3:0 no viable alternative @ input '(' (select *from[(]...)
com.datastax.driver.core.exceptions.syntaxerror: line 3:0 no viable alternative @ input '(' (select *from[(]...)

what should view table above?

thank you.

select t1.tag_type_id, t1.datetime, t1.value,        t2.tag_type_id, t2.datetime, t2.value table t1 join table t2 on t1.tag_type = 39 , t2.tag_type = 40 ,                   t1.datetime = t2.datetime

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