random_normal ( [mean double precision [, stddev double precision]] ) → double precision → double precisionReturns a random value from the normal distribution with the given parameters;
mean defaults to 0.0 and stddev defaults to 1.0random_normal
Returns a random value from the normal distribution with the given parameters; mean defaults to 0.0 and stddev defaults to 1.0
English manual coverage begins with PostgreSQL 7.1. Source history and runtime observations have their own recorded version boundaries.
Reading PG 18·Select a recorded version
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- 数学函数和操作符
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Definition PG 18
Returns a random value from the normal distribution with the given parameters;
mean defaults to 0.0 and stddev defaults to 1.0Signatures and overloads
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center · PostgreSQL 18 · wiki-repair-20261023:f4226501843909d8a60ef5a7e2f0748876348798e019765f33d63e919aafed07
Text language: en · wiki-repair-20261023:f4226501843909d8a60ef5a7e2f0748876348798e019765f33d63e919aafed07