ksqlDB stream join table with aggregation error - join

Question

When i execute the below sql with error, who knows how to resolve it? Thanks a lot.
error message:
class io.confluent.ksql.execution.expression.tree.LogicalBinaryExpression cannot be cast to class io.confluent.ksql.execution.expression.tree.ComparisonExpression (io.confluent.ksql.execution.expression.tree.LogicalBinaryExpression and io.confluent.ksql.execution.expression.tree.ComparisonExpression are in unnamed module of loader 'app')
select
a.mo_order_id,
a.mo_lot_no,
b.tenant_id,
a.line_id,
substring((TIMESTAMPTOSTRING(a.creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),1,10) as produce_date,
substring(substring((TIMESTAMPTOSTRING(a.creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),12,12),1,2) as produce_hour,
(
case
when a.result_code =1 then 1
when a.result_code =3 then 1
when a.result_code =8 then 1
when a.result_code =2 then 2
else 0
end) cause_type,
SUM((
case
when ((a.result_code =1) and is_reset = false) then sn_count
when ((a.result_code =3) and is_reset = false) then sn_count
when ((a.result_code =8) and is_reset = false) then sn_count
when ((a.result_code =1) and is_reset = true) then -1*sn_count
when (a.result_code = 2) then sn_count else 0
end)) stats
from
STREAM_ORI_SACMES_INSPECTION a
inner join KSQL_TABLE_GP_MO_ORDER b on
(a.mo_order_id = b.id and (a.result_code =1 or a.result_code =3 or a.result_code =8))
group by
a.mo_order_id,
a.mo_lot_no,
b.tenant_id,
a.line_id,
substring((TIMESTAMPTOSTRING(creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),1,10),
substring(substring((TIMESTAMPTOSTRING(creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),12,12),1,2),
(
case
when a.result_code =1 then 1
when a.result_code =3 then 1
when a.result_code =8 then 1
when a.result_code =2 then 2
else 0
end)
emit changes;

Answer 1

Humm... looks like a bug!
The issue is that your join criteria is invalid: (a.mo_order_id = b.id and (a.result_code =1 or a.result_code =3 or a.result_code =8)).
Looks like your join criteria should be a.mo_order_id = b.id, and the other bits should be moved to a WHERE clause.
a.mo_order_id,
a.mo_lot_no,
b.tenant_id,
a.line_id,
substring((TIMESTAMPTOSTRING(a.creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),1,10) as produce_date,
substring(substring((TIMESTAMPTOSTRING(a.creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),12,12),1,2) as produce_hour,
(
case
when a.result_code =1 then 1
when a.result_code =3 then 1
when a.result_code =8 then 1
when a.result_code =2 then 2
else 0
end) cause_type,
SUM((
case
when ((a.result_code =1) and is_reset = false) then sn_count
when ((a.result_code =3) and is_reset = false) then sn_count
when ((a.result_code =8) and is_reset = false) then sn_count
when ((a.result_code =1) and is_reset = true) then -1*sn_count
when (a.result_code = 2) then sn_count else 0
end)) stats
from
STREAM_ORI_SACMES_INSPECTION a
inner join KSQL_TABLE_GP_MO_ORDER b on
a.mo_order_id = b.id
where
a.result_code =1 or a.result_code =3 or a.result_code =8
group by
a.mo_order_id,
a.mo_lot_no,
b.tenant_id,
a.line_id,
substring((TIMESTAMPTOSTRING(creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),1,10),
substring(substring((TIMESTAMPTOSTRING(creation_time, 'yyyy-MM-dd HH:mm:ss', 'GMT')),12,12),1,2),
(
case
when a.result_code =1 then 1
when a.result_code =3 then 1
when a.result_code =8 then 1
when a.result_code =2 then 2
else 0
end)
emit changes;
join ksqldb