Bug: when create mv with an index, a stream key is expected but not exist

[chenzl25]

Describe the bug

create materialized view if not exists tca.fill_markout_status as (
SELECT
transacttime::date,
count() as count,
count() - count(mark_price) as nulls -- counts non-null values
FROM tca.fill_markouts
GROUP BY transacttime::date
)

error message:

Panicked when handling the request: a stream key is expected but not exist, plan: StreamExchange { dist: HashShard($expr1) } └─StreamProject { exprs: [AtTimeZone(idx_fill_markouts_transacttime.transacttime, 'UTC':Varchar)::Date as $expr1, idx_fill_markouts_transacttime.mark_price, idx_fill_markouts_transacttime.fill_markouts._row_id] } └─StreamTableScan { table: idx_fill_markouts_transacttime, columns: [transacttime, mark_price, fill_markouts._row_id] } This is a bug. We would appreciate a bug report at: https://github.com/risingwavelabs/risingwave/issues/new?labels=type%2Fbug&template=bug_report.yml

Error message/log

To Reproduce

No response

Expected behavior

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How did you deploy RisingWave?

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The version of RisingWave

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Additional context

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