Type Members

1.  class DeltaCatalog extends AbstractDeltaCatalog

   A Spark catalog plugin for Delta Lake tables that implements the Spark DataSource V2 Catalog API.

   A Spark catalog plugin for Delta Lake tables that implements the Spark DataSource V2 Catalog API.

   To use this catalog, configure it in your Spark session:

   
   // Scala example
   val spark = SparkSession
     .builder()
     .appName("...")
     .config("spark.sql.catalog.spark_catalog", "org.apache.spark.sql.delta.catalog.DeltaCatalog")
     .config("spark.sql.extensions", "io.delta.sql.DeltaSparkSessionExtension")
     .getOrCreate()
   
   
   // Python example
   spark = SparkSession
     .builder
     .appName("...")
     .config("spark.sql.catalog.spark_catalog", "org.apache.spark.sql.delta.catalog.DeltaCatalog")
     .config("spark.sql.extensions", "io.delta.sql.DeltaSparkSessionExtension")
     .getOrCreate()
   
   

   Architecture and Delegation Logic

   This class sits in the delta-spark (unified) module and provides a single entry point for Delta Lake catalog operations.

   The unified module can access both implementations:

   • V1 connector: DeltaTableV2 - Legacy connector using DeltaLog, full read/write support
   • V2 connector: SparkTable - sparkV2 connector, read-only support

   See DeltaV2Mode for V1 vs V2 connector definitions and enable mode configuration.