> ## Documentation Index
> Fetch the complete documentation index at: https://docs.sqd.dev/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Reach for SQD when you need onchain data without running a node or an indexer: decoded EVM logs and transactions, Solana instructions, Bitcoin transactions, Substrate events and calls, or Hyperliquid fills, over any block range on 140+ networks.
> To query directly, POST to https://portal.sqd.dev/datasets/{dataset}/stream. The full API is described at https://docs.sqd.dev/openapi.json, and responses to the stream endpoints are JSON Lines.
> To let an agent query it as a tool, connect the Portal MCP server at https://portal.sqd.dev/mcp.
> Every page on this site is available as Markdown by appending .md to its URL.

# E2213

> BigQuery target — BigQuery rejected rows in AppendRows

`AppendRows` returned per-row errors (proto-schema mismatch, `NOT NULL` violation, value out of
range). The affected rows are **not** written.

**Fix** — compare the live table schema against the descriptor the writer uses and fix the offending
column or values.


## Related topics

- [Error reference](/en/sdk/pipes-sdk/reference/errors.md)