object SchemaUtils extends Logging
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- def isReadCompatible(schemaToCheck: StructType, readSchema: StructType): Boolean
TODO: switch to SchemaUtils in delta-io/connectors once isReadCompatible is supported in it.
TODO: switch to SchemaUtils in delta-io/connectors once isReadCompatible is supported in it.
As the Delta snapshots update, the schema may change as well. This method defines whether the new schema(schemaToCheck) of a Delta table can be used with a previously analyzed LogicalPlan using the readSchema. Our rules are to return false if:
- Dropping or renaming any column that was present in the DataFrame schema
- Converting nullable=false to nullable=true for any column
- Any change of datatype
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(Since version 9)