com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction Class Reference

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 1866 of file MapDSqlOperatorTable.java.

Constructor & Destructor Documentation

ExtFunction()

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

inlinepackage

Definition at line 1867 of file MapDSqlOperatorTable.java.

References com.mapd.parser.server.ExtensionFunction.getSqlOuts(), com.mapd.parser.server.ExtensionFunction.getSqlRet(), com.mapd.parser.server.ExtensionFunction.isRowUdf, 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

inferReturnType()

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

inline

Definition at line 1886 of file MapDSqlOperatorTable.java.

                                                                     {
      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);
      }
    }

Member Data Documentation

isRowUdf

final boolean com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.isRowUdf

private

Definition at line 1906 of file MapDSqlOperatorTable.java.

outs

final List<SqlTypeName> com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.outs

private

Definition at line 1908 of file MapDSqlOperatorTable.java.

ret

final SqlTypeName com.mapd.calcite.parser.MapDSqlOperatorTable.ExtFunction.ret

private

Definition at line 1907 of file MapDSqlOperatorTable.java.

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/java/calcite/src/main/java/com/mapd/calcite/parser/MapDSqlOperatorTable.java