// 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());
// output can be wide. Include extra space for a last ", ..."
output_types.addVarchar(LINE_MAX+5, "list");
}
// 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");
}
// 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());
output_types.addInt("line_num");
// other output is a line of output from the shell command, which is
// truncated at LINE_MAX characters
output_types.addVarbinary(LINE_MAX, "text");
}
// 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");
}
// 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() != ARGS)
vt_report_error(0, "Function only accepts %d arguments, but %zu provided", ARGS, input_types.getColumnCount());
// Our output size will never be more than the input size
output_types.addVarchar(WIDTH, "label");
output_types.addVarchar(WIDTH, "group_label");
}