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errors.SchemaError

A source’s new schema cannot be read in the old one, and a node

Usage

Source

errors.SchemaError()

reading it has a contract that was proved against the old one.

Raised by refresh. A source whose data fits its old schema (added columns, widened types) is read in the old schema; otherwise the nodes reading it are planned again and recomputed, which a contracted node cannot be. Build its nodes again on the new schema, so the contract is proved against it. Nothing was applied.