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query_analysis: allow CREATE FUNCTION statement #365
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MarinPostma
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May 2, 2023
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| // Workaround for CREATE FUNCTION. | ||
| // FIXME: this should be handled by the parser (or *at least* trimmed + case insensitive) | ||
| let is_create_function = s.starts_with("CREATE FUNCTION"); |
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yeah this needs to be handled by the parser 100%, trimming and case insensitive won't be enough, there can be an arbitrary number of whitespace between create and function
MarinPostma
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May 2, 2023
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| if is_create_function { | ||
| return maybe_create_function_stmt.take(); | ||
| } |
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this is not correct, the string can contain multiple statements
| let mut maybe_create_function_stmt = is_create_function.then(|| { | ||
| Ok(Statement { | ||
| stmt: s.to_string(), | ||
| kind: StmtKind::Other, |
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This is definitely a write
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This draft is a showcase of how little it takes to enable Wasm-powered user-defined functions in sqld (and then Turso).
It's just a draft because it shows a cheap workaround for the parser, but we can also cook a more decent solution even without changing the sqlite3-parser crate - and ideally we can just contribute to that, under a
libsqlfeature flag.btw: I needed to put this condition inside
std::iter::from_fnbecause otherwise Rust isn't able to determine a single return type for this function, which isn't ideal, but if we decide to go forward with enabling Wasm udfs in sqld, we can rework that too./cc @MarinPostma @glommer