clockworklabs/SpacetimeDB · error

Failed to decode row!

Error message

Failed to decode row!

What it means

Error "Failed to decode row!" thrown in clockworklabs/SpacetimeDB.

Source

Thrown at crates/bindings/src/table.rs:1434

            inner: iter,
            reader: Cursor::new(buf),
            _marker: PhantomData,
        }
    }

    fn is_exhausted(&self) -> bool {
        (&self.reader).remaining() == 0 && self.inner.is_exhausted()
    }
}

impl<T: DeserializeOwned> Iterator for TableIter<T> {
    type Item = T;

    fn next(&mut self) -> Option<Self::Item> {
        loop {
            // If we currently have some bytes in the buffer to still decode, do that.
            if (&self.reader).remaining() > 0 {
                let row = bsatn::from_reader(&mut &self.reader).expect("Failed to decode row!");
                return Some(row);
            }

            // Don't fetch the next chunk if there is none.
            if self.inner.is_exhausted() {
                return None;
            }

            // Otherwise, try to fetch the next chunk while reusing the buffer.
            self.reader.buf.clear();
            self.reader.pos.set(0);
            self.inner.read(&mut self.reader.buf);
        }
    }
}

View on GitHub (pinned to 524b4487d9)

When it happens

Trigger: Thrown at crates/bindings/src/table.rs:1434 when the library encounters an invalid state.

Common situations: See trigger scenarios.

Understand the failure class

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

AI-assisted analysis of clockworklabs/SpacetimeDB@524b4487d9 (2026-08-16). Data as JSON: /api/errors/7c34aee691f81cf3. Report an issue: GitHub.