How to use

toDruidExpressions

method

in

org.apache.druid.sql.calcite.expression.Expressions

@Nullable
public static DruidExpression convertCall(
  final PlannerContext plannerContext,
  final RowSignature rowSignature,
  final RexNode rexNode,
  final Function<List<DruidExpression>, DruidExpression> expressionFunction
)
{
 final RexCall call = (RexCall) rexNode;
 final List<DruidExpression> druidExpressions = Expressions.toDruidExpressions(
   plannerContext,
   rowSignature,
   call.getOperands()
 );
 if (druidExpressions == null) {
  return null;
 }
 return expressionFunction.apply(druidExpressions);
}

final List<DruidExpression> druidExpressions = Expressions.toDruidExpressions(
  plannerContext,
  rowSignature,

@Nullable
public static DruidExpression convertCall(
  final PlannerContext plannerContext,
  final RowSignature rowSignature,
  final RexNode rexNode,
  final Function<List<DruidExpression>, DruidExpression> expressionFunction
)
{
 final RexCall call = (RexCall) rexNode;
 final List<DruidExpression> druidExpressions = Expressions.toDruidExpressions(
   plannerContext,
   rowSignature,
   call.getOperands()
 );
 if (druidExpressions == null) {
  return null;
 }
 return expressionFunction.apply(druidExpressions);
}

final List<DruidExpression> druidExpressions = Expressions.toDruidExpressions(
  plannerContext,
  rowSignature,