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8 lines
242 B
8 lines
242 B
2 years ago
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-- max rolling std
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select
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stocksymbol,
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max(stddevPop(price)) over
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(partition by stocksymbol rows between 2 preceding AND CURRENT row) as maxRollingStd
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from
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(SELECT * FROM benchmark.trade01m ORDER BY time)
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GROUP BY stocksymbol
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