Package org.apache.druid.sql.calcite.expression.builtin

Class TimeExtractOperatorConversion

java.lang.Object

org.apache.druid.sql.calcite.expression.builtin.TimeExtractOperatorConversion

All Implemented Interfaces:

SqlOperatorConversion

public class TimeExtractOperatorConversion
extends Object
implements SqlOperatorConversion

Constructor Summary

Constructors

Constructor	Description
TimeExtractOperatorConversion()

Method Summary

Modifier and Type	Method	Description
static DruidExpression	applyTimeExtract(DruidExpression timeExpression, TimestampExtractExprMacro.Unit unit, DruidExpression timeZoneExpression)
static DruidExpression	applyTimeExtract(DruidExpression timeExpression, TimestampExtractExprMacro.Unit unit, org.joda.time.DateTimeZone timeZone)
org.apache.calcite.sql.SqlFunction	calciteOperator()	Returns the SQL operator corresponding to this function.
DruidExpression	toDruidExpression(PlannerContext plannerContext, RowSignature rowSignature, org.apache.calcite.rex.RexNode rexNode)	Translate a Calcite RexNode to a Druid expression.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.druid.sql.calcite.expression.SqlOperatorConversion

toDruidExpressionWithPostAggOperands, toDruidFilter, toPostAggregator

Constructor Details

TimeExtractOperatorConversion

public TimeExtractOperatorConversion()

Method Details

applyTimeExtract

public static DruidExpression applyTimeExtract(DruidExpression timeExpression,
 TimestampExtractExprMacro.Unit unit,
 org.joda.time.DateTimeZone timeZone)

applyTimeExtract

public static DruidExpression applyTimeExtract(DruidExpression timeExpression,
 TimestampExtractExprMacro.Unit unit,
 DruidExpression timeZoneExpression)

calciteOperator

public org.apache.calcite.sql.SqlFunction calciteOperator()

Description copied from interface: SqlOperatorConversion

Returns the SQL operator corresponding to this function. Should be a singleton.

Specified by:

calciteOperator in interface SqlOperatorConversion

Returns:

operator

toDruidExpression

public DruidExpression toDruidExpression(PlannerContext plannerContext,
 RowSignature rowSignature,
 org.apache.calcite.rex.RexNode rexNode)

Description copied from interface: SqlOperatorConversion

Translate a Calcite RexNode to a Druid expression.

Specified by:

toDruidExpression in interface SqlOperatorConversion

Parameters:

plannerContext - SQL planner context

rowSignature - signature of the rows to be extracted from

rexNode - expression meant to be applied on top of the rows

Returns:

Druid expression, or null if translation is not possible

See Also:

• Expressions.toDruidExpression(PlannerContext, RowSignature, RexNode)