Prune Auto Issue

A user ran into this error after setting prune: auto in his manifest:

Failed to deploy to graph node 0.0.0.0:8020/: subgraph deployment error: store error: new row for relation "subgraph_manifest" violates check constraint "subgraph_manifest_history_blocks_check"

He is running graph-node 0.37.0 locally and does not have a min_history_blocks set in his environment variables. We may want to set this as a high number for a default figure (eg 100,000). Alternatively it might be better to remove the auto option and require the user state the specific history_blocks desired in the manifest.

https://github.com/graphprotocol/graph-node/blob/776afa14c324614abc84a72587f199cd7681153a/graph/src/data/subgraph/mod.rs#L603

Inizia da graph/src/data/subgraph/mod.rs intorno alla riga 603 e traccia il modo in cui prune:auto determina history_blocks quando min_history_blocks non è impostato. Riproduci il fallimento del deployment di graph-node 0.37.0 con la configurazione del manifest descritta. Il lavoro è completato quando viene deciso il comportamento previsto di prune:auto e i deployment non violano più il vincolo subgraph_manifest_history_blocks_check.