org.apache.drill.exec.planner.sql.logical

Class ConvertHiveParquetScanToDrillParquetScan

java.lang.Object

org.apache.calcite.plan.RelOptRule

org.apache.drill.exec.store.StoragePluginOptimizerRule

org.apache.drill.exec.planner.sql.logical.ConvertHiveParquetScanToDrillParquetScan

public class ConvertHiveParquetScanToDrillParquetScan
extends StoragePluginOptimizerRule

Convert Hive scan to use Drill's native parquet reader instead of Hive's native reader. It also adds a project to convert/cast the output of Drill's native parquet reader to match the expected output of Hive's native reader.

Field Summary

Fields

Modifier and Type	Field and Description
static ConvertHiveParquetScanToDrillParquetScan	INSTANCE

Fields inherited from class org.apache.calcite.plan.RelOptRule

description, operands, relBuilderFactory

Method Summary

Modifier and Type	Method and Description
boolean	matches(org.apache.calcite.plan.RelOptRuleCall call) HiveUtilities.nativeReadersRuleMatches(org.apache.calcite.plan.RelOptRuleCall, java.lang.Class)
void	onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Methods inherited from class org.apache.calcite.plan.RelOptRule

any, convert, convert, convertList, convertOperand, convertOperand, equals, equals, getOperand, getOperands, getOutConvention, getOutTrait, hashCode, none, operand, operand, operand, operand, operand, operandJ, operandJ, some, toString, unordered

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

INSTANCE

public static final ConvertHiveParquetScanToDrillParquetScan INSTANCE

Method Detail

matches

public boolean matches(org.apache.calcite.plan.RelOptRuleCall call)

HiveUtilities.nativeReadersRuleMatches(org.apache.calcite.plan.RelOptRuleCall, java.lang.Class)

Overrides:

matches in class org.apache.calcite.plan.RelOptRule

onMatch

public void onMatch(org.apache.calcite.plan.RelOptRuleCall call)

Specified by:

onMatch in class org.apache.calcite.plan.RelOptRule