Convert more unary functions #11805
Convert more unary functions #11805
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| sqlfunc!( | ||
| #[sqlname = "octet_length"] | ||
| fn byte_length_bytes<'a>(a: &'a [u8]) -> Result<i32, EvalError> { | ||
| i32::try_from(a.len()).or(Err(EvalError::Int32OutOfRange)) |
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I am often confused when I should use or vs or_else. Will the cost of constructing Err(EvalError::Int32OutOfRange) be amortized somehow during compilation time because the expression is constant?
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Yes, that's exactly the intuition
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Also see this relevant clippy discussion on whether any const function should be allowed in an .or(..) (the answer is no) rust-lang/rust-clippy#5658
| #[derive(Ord, PartialOrd, Clone, Debug, Eq, PartialEq, Serialize, Deserialize, Hash, MzReflect)] | ||
| pub struct JsonbStripNulls; | ||
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| impl LazyUnaryFunc for JsonbStripNulls { |
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What is the aspect of JsonbStripNulls that prohibits from using sqlfunc! in favor of impl LazyUnaryFunc?
Is it just the fact that sqlfunc! hard-codes an EagerUnaryFunc implementation?
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It just allows it to re-use the temporary_storage which is more efficient but I switched it now to sqlfunc! which is a lot simpler
…ions Signed-off-by: Petros Angelatos <[email protected]>
Signed-off-by: Petros Angelatos <[email protected]>
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Signed-off-by: Petros Angelatos <[email protected]>
Signed-off-by: Petros Angelatos <[email protected]>
Signed-off-by: Petros Angelatos <[email protected]>
Signed-off-by: Petros Angelatos <[email protected]>
Signed-off-by: Petros Angelatos <[email protected]>
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Motivation
Testing
Release notes
This PR includes the following user-facing behavior changes: