Inheritance diagram for com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction:

Collaboration diagram for com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction:

Public Member Functions
RelDataType	inferReturnType (SqlOperatorBinding opBinding)

Package Functions
	ExtFunction (final String name, final ExtensionFunction sig)

Private Attributes
final boolean	isRowUdf

final SqlTypeName	ret

final List< SqlTypeName >	outs

Detailed Description

Definition at line 2016 of file MapDSqlOperatorTable.java.

Constructor & Destructor Documentation

com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.ExtFunction	(	final String	name,
		final ExtensionFunction	sig
	)

inlinepackage

Definition at line 2017 of file MapDSqlOperatorTable.java.

References com.mapd.parser.server.ExtensionFunction.isRowUdf, com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.isRowUdf, com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.outs, com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.ret, and com.mapd.parser.server.ExtensionFunction.toSqlSignature().

                                                                 {
       super(name,
               SqlKind.OTHER_FUNCTION,
               null,
               null,
               OperandTypes.family(sig.toSqlSignature()),
               sig.isRowUdf() ? SqlFunctionCategory.SYSTEM
                              : SqlFunctionCategory.USER_DEFINED_TABLE_FUNCTION);
       isRowUdf = sig.isRowUdf();
       if (isRowUdf) {
         ret = sig.getSqlRet();
         outs = null;
       } else {
         ret = null;
         outs = sig.getSqlOuts();
       }
     }

Here is the call graph for this function:

Member Function Documentation

RelDataType com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.inferReturnType ( SqlOperatorBinding opBinding )

inline

Definition at line 2036 of file MapDSqlOperatorTable.java.

References com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.isRowUdf, and com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.ret.

                                                                      {
       if (isRowUdf) {
         final RelDataTypeFactory typeFactory = opBinding.getTypeFactory();
         return typeFactory.createTypeWithNullability(
                 typeFactory.createSqlType(ret), true);
       } else {
         final RelDataTypeFactory typeFactory = opBinding.getTypeFactory();
         java.util.List<RelDataType> typeList = new java.util.ArrayList<RelDataType>();
         java.util.List<java.lang.String> fieldNameList =
                 new java.util.ArrayList<java.lang.String>();
 
         for (int out_idx = 0; out_idx < outs.size(); ++out_idx) {
           // TODO: use the argument names of output columns as field names
           fieldNameList.add("out" + out_idx);
           typeList.add(typeFactory.createSqlType(outs.get(out_idx)));
         }
         return typeFactory.createStructType(typeList, fieldNameList);
       }
     }