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boolean(expr) – Casts the value `expr` to the target data type `boolean`. Platforms: WhereOS, Spark,

bpr_sampling(int userId, List posItems [, const string options])- Returns a relation consists of Platforms: WhereOS,

bround(expr, d) – Returns `expr` rounded to `d` decimal places using HALF_EVEN rounding mode. Platforms:

bloom_contains_any(string bloom, string key) or bloom_contains_any(string bloom, array keys)- Returns true if the bloom filter

Returns the logical NOT of a bloom filters; representing the set of values NOT in

Returns the logical OR of two bloom filters; representing the intersection of values in either