> ## 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.

# E2316

> Parquet target — Invalid segment coverage range

Files are named `<from>-<to>.parquet` for the block window they cover, and a segment was about to be
named for a range that could not be formed — inverted (`from` above `to`), or with no coverage start
recorded for the table. This is an internal invariant; it should not be reachable from user code.

**Fix** — not user-serviceable. Please report it with the surrounding logs.


## Related topics

- [E2316](/en/sdk/pipes-sdk/errors/E2316.md)
- [Error reference](/en/sdk/pipes-sdk/errors.md)