// Provide return type length/scale/precision information (given the input
// type length/scale/precision), as well as column names
virtual void getReturnType(ServerInterface &srvfloaterface,
const SizedColumnTypes &inputTypes,
SizedColumnTypes &outputTypes)
{
int int_part = inputTypes.getColumnType(0).getNumericPrecision();
int frac_part = inputTypes.getColumnType(0).getNumericScale();
outputTypes.addNumeric(int_part+frac_part, frac_part);
}
virtual void getIntermediateTypes(ServerInterface &srvInterface,
const SizedColumnTypes &inputTypes,
SizedColumnTypes
&intermediateTypeMetaData)
{
int int_part = inputTypes.getColumnType(0).getNumericIntegral();
int frac_part = inputTypes.getColumnType(0).getNumericFractional();
intermediateTypeMetaData.addNumeric(int_part+frac_part, frac_part); // intermediate sum
intermediateTypeMetaData.addInt(); // count of items
}
// Tell Vertica what our return string length will be, given the input
// string length
virtual void getReturnType(ServerInterface &srvInterface,
const SizedColumnTypes &inTypes,
SizedColumnTypes &outTypes)
{
size_t inputLen = inTypes.getColumnType(0).getStringLength();
ApacheDelimiterParser parser;
parser.addFields(outTypes, inputLen);
}
virtual void getReturnType(ServerInterface &srvInterface,
const SizedColumnTypes &input_types,
SizedColumnTypes &output_types)
{
for (int i = 0; i < getNumCols(); ++i)
output_types.addArg(input_types.getColumnType(i), input_types.getColumnName(i));
output_types.addInt("grouping_id");
}
// Tell Vertica what our return string length will be, given the input
// string length
virtual void getReturnType(ServerInterface &srvInterface,
const SizedColumnTypes &input_types,
SizedColumnTypes &output_types)
{
// Error out if we're called with anything but 1 argument
if (input_types.getColumnCount() != 2)
vt_report_error(0, "Function only accepts 2 arguments, but %zu provided", input_types.getColumnCount());
output_types.addArg(input_types.getColumnType(0), "val");
}
static inline void writeColumn(PartitionReader &input_reader,
PartitionWriter &output_writer,
const SizedColumnTypes &types,
size_t col,
bool setNull) {
const VerticaType &vt = types.getColumnType(col);
// switch on type and write value
switch (vt.getTypeOid())
{
case Int8OID:
{
if(!setNull)
output_writer.setInt(col, input_reader.getIntRef(col));
else
output_writer.setInt(col, vint_null);
break;
}
case Float8OID:
{
if(!setNull)
output_writer.setFloat(col, input_reader.getFloatRef(col));
else
output_writer.setFloat(col, vfloat_null);
break;
}
case VarcharOID:
{
if(!setNull)
{
const VString &in = input_reader.getStringRef(col);
output_writer.getStringRef(col).copy(&in);
}
else
output_writer.getStringRef(col).setNull();
break;
}
default:
{
vt_report_error(0, "Argument type not support for GroupGenerator");
break;
}
}
}
// Tell Vertica what our return string length will be, given the input
// string length
virtual void getReturnType(ServerInterface &srvInterface,
const SizedColumnTypes &input_types,
SizedColumnTypes &output_types)
{
// Error out if we're called with anything but 1 argument
if (input_types.getColumnCount() != 1)
vt_report_error(0, "Function only accepts 1 argument, but %zu provided", input_types.getColumnCount());
int input_len = input_types.getColumnType(0).getStringLength();
// Our output size will never be more than the input size
output_types.addVarchar(input_len, "name");
output_types.addVarchar(input_len, "value");
}
virtual void getReturnType(ServerInterface &srvInterface, const SizedColumnTypes &input_types, SizedColumnTypes &output_types)
{
// Length matches input
output_types.addArg(input_types.getColumnType(0), "anagram");
}