chore: allow optional whitespace in multi mv implementation #597

Job	Run time
Python 3.9 \| Clickhouse 23.8 \| Ubuntu	9m 56s
Python 3.9 \| Clickhouse 24.1 \| Ubuntu	9m 0s
Python 3.9 \| Clickhouse 24.2 \| Ubuntu	8m 59s
Python 3.9 \| Clickhouse 24.3 \| Ubuntu	8m 52s
Python 3.9 \| Clickhouse latest \| Ubuntu	9m 1s
Python 3.10 \| Clickhouse 23.8 \| Ubuntu	9m 10s
Python 3.10 \| Clickhouse 24.1 \| Ubuntu	9m 0s
Python 3.10 \| Clickhouse 24.2 \| Ubuntu	8m 52s
Python 3.10 \| Clickhouse 24.3 \| Ubuntu	9m 3s
Python 3.10 \| Clickhouse latest \| Ubuntu	9m 19s
Python 3.11 \| Clickhouse 23.8 \| Ubuntu	8m 20s
Python 3.11 \| Clickhouse 24.1 \| Ubuntu	7m 59s
Python 3.11 \| Clickhouse 24.2 \| Ubuntu	8m 10s
Python 3.11 \| Clickhouse 24.3 \| Ubuntu	8m 6s
Python 3.11 \| Clickhouse latest \| Ubuntu	7m 51s
Python 3.12 \| Clickhouse 23.8 \| Ubuntu	8m 35s
Python 3.12 \| Clickhouse 24.1 \| Ubuntu	8m 11s
Python 3.12 \| Clickhouse 24.2 \| Ubuntu	8m 13s
Python 3.12 \| Clickhouse 24.3 \| Ubuntu	8m 34s
Python 3.12 \| Clickhouse latest \| Ubuntu	8m 14s
	2h 53m 25s

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