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object DeltaTable

:: Evolving ::

Companion object to create DeltaTable instances.

DeltaTable.forPath(sparkSession, pathToTheDeltaTable)
Since

0.3.0

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  6. def convertToDelta(spark: SparkSession, identifier: String): DeltaTable

    :: Evolving ::

    :: Evolving ::

    Create a DeltaTable from the given parquet table. Takes an existing parquet table and constructs a delta transaction log in the base path of the table.

    Note: Any changes to the table during the conversion process may not result in a consistent state at the end of the conversion. Users should stop any changes to the table before the conversion is started.

    An Example would be

    io.delta.tables.DeltaTable.convertToDelta(
     spark,
     "parquet.`/path`"
    Annotations
    @Evolving()
    Since

    0.4.0

  7. def convertToDelta(spark: SparkSession, identifier: String, partitionSchema: String): DeltaTable

    :: Evolving ::

    :: Evolving ::

    Create a DeltaTable from the given parquet table and partition schema. Takes an existing parquet table and constructs a delta transaction log in the base path of that table.

    Note: Any changes to the table during the conversion process may not result in a consistent state at the end of the conversion. Users should stop any changes to the table before the conversion is started.

    An example usage would be

    io.delta.tables.DeltaTable.convertToDelta(
     spark,
     "parquet.`/path`",
     "key1 long, key2 string")
    Annotations
    @Evolving()
    Since

    0.4.0

  8. def convertToDelta(spark: SparkSession, identifier: String, partitionSchema: StructType): DeltaTable

    :: Evolving ::

    :: Evolving ::

    Create a DeltaTable from the given parquet table and partition schema. Takes an existing parquet table and constructs a delta transaction log in the base path of that table.

    Note: Any changes to the table during the conversion process may not result in a consistent state at the end of the conversion. Users should stop any changes to the table before the conversion is started.

    An example usage would be

    io.delta.tables.DeltaTable.convertToDelta(
     spark,
     "parquet.`/path`",
     new StructType().add(StructField("key1", LongType)).add(StructField("key2", StringType)))
    Annotations
    @Evolving()
    Since

    0.4.0

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  12. def forName(sparkSession: SparkSession, tableName: String): DeltaTable

    Create a DeltaTable using the given table or view name using the given SparkSession.

  13. def forName(tableOrViewName: String): DeltaTable

    Create a DeltaTable using the given table or view name using the given SparkSession.

    Create a DeltaTable using the given table or view name using the given SparkSession.

    Note: This uses the active SparkSession in the current thread to read the table data. Hence, this throws error if active SparkSession has not been set, that is, SparkSession.getActiveSession() is empty.

  14. def forPath(sparkSession: SparkSession, path: String): DeltaTable

    :: Evolving ::

    :: Evolving ::

    Create a DeltaTable for the data at the given path using the given SparkSession.

    Annotations
    @Evolving()
    Since

    0.3.0

  15. def forPath(path: String): DeltaTable

    :: Evolving ::

    :: Evolving ::

    Create a DeltaTable for the data at the given path.

    Note: This uses the active SparkSession in the current thread to read the table data. Hence, this throws error if active SparkSession has not been set, that is, SparkSession.getActiveSession() is empty.

    Annotations
    @Evolving()
    Since

    0.3.0

  16. final def getClass(): Class[_]
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    @native()
  17. def hashCode(): Int
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  18. def isDeltaTable(identifier: String): Boolean

    :: Evolving ::

    :: Evolving ::

    Check if the provided identifier string, in this case a file path, is the root of a Delta table.

    Note: This uses the active SparkSession in the current thread to search for the table. Hence, this throws error if active SparkSession has not been set, that is, SparkSession.getActiveSession() is empty.

    An example would be

    DeltaTable.isDeltaTable(spark, "/path/to/table")
    Annotations
    @Evolving()
    Since

    0.4.0

  19. def isDeltaTable(sparkSession: SparkSession, identifier: String): Boolean

    :: Evolving ::

    :: Evolving ::

    Check if the provided identifier string, in this case a file path, is the root of a Delta table using the given SparkSession.

    An example would be

    DeltaTable.isDeltaTable(spark, "path/to/table")
    Annotations
    @Evolving()
    Since

    0.4.0

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