{"record":{"id":"063ac4552465f44e","repo":"diesel-rs/diesel","slug":"sqlite-reason-while-reading-a-value-as-target","errorCode":null,"errorMessage":"SQLite {reason} while reading a value as {target}","messagePattern":"SQLite (.+?) while reading a value as (.+?)","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"diesel/src/sqlite/connection/sqlite_value.rs","lineNumber":101,"sourceCode":"\nimpl Drop for OwnedSqliteValue {\n    fn drop(&mut self) {\n        unsafe { ffi::sqlite3_value_free(self.value.as_ptr()) }\n    }\n}\n\n// Unsafe Send impl safe since sqlite3_value is built with sqlite3_value_dup\n// see https://www.sqlite.org/c3ref/value.html\nunsafe impl Send for OwnedSqliteValue {}\n\n#[cold]\nfn allocation_failed(out_of_memory: bool, target: &str) -> ! {\n    let reason = if out_of_memory {\n        \"ran out of memory\"\n    } else {\n        \"failed to allocate memory\"\n    };\n    panic!(\"SQLite {reason} while reading a value as {target}\")\n}\n\n#[cold]\nfn duplication_failed() -> crate::result::Error {\n    crate::result::Error::DeserializationError(\n        \"SQLite failed to allocate a duplicated value\".into(),\n    )\n}\n\nimpl<'row, 'stmt, 'query> SqliteValue<'row, 'stmt, 'query> {\n    pub(super) fn new(\n        row: Ref<'row, PrivateSqliteRow<'stmt, 'query>>,\n        col_idx: usize,\n    ) -> Option<SqliteValue<'row, 'stmt, 'query>> {\n        let value = match &*row {\n            PrivateSqliteRow::Direct(stmt) => stmt.column_value(\n                col_idx\n                    .try_into()","sourceCodeStart":83,"sourceCodeEnd":119,"githubUrl":"https://github.com/diesel-rs/diesel/blob/6fa6ed01b24b24248ab2a611698d0a7c6a2e9120/diesel/src/sqlite/connection/sqlite_value.rs#L83-L119","documentation":"The SQLite value reader ran out of memory while converting a stored value to the requested target type. The offending input is the SQLite value being read; the failure comes from the allocator during value duplication or conversion, not from the query itself.","triggerScenarios":"Thrown at diesel/src/sqlite/connection/sqlite_value.rs:101 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Reduce the size of the stored value or read it in smaller chunks","Free memory before processing large SQLite values","Avoid duplicating very large blobs or strings when a streaming read is possible"],"exampleFix":null,"handlingStrategy":"fallback","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"6fa6ed01b24b24248ab2a611698d0a7c6a2e9120","analyzedAt":"2026-09-07T01:50:13.074Z","contentChangedAt":"2026-09-07T01:50:13.074Z","schemaVersion":2},"datasetVersion":"2026-09-16T09:17:16.951Z"}