/**
* rasqal_row_bind_variables:
* @row: Result row
* @vars_table: Variables table
*
* INTERNAL - Bind the variable table vars withvalues in the row
*
* Return value: non-0 on failure
*/
int
rasqal_row_bind_variables(rasqal_row* row,
rasqal_variables_table* vars_table)
{
int i;
for(i = 0; i < row->size; i++) {
rasqal_variable* v;
v = rasqal_rowsource_get_variable_by_offset(row->rowsource, i);
if(v) {
rasqal_literal *value = row->values[i];
if(value) {
value = rasqal_new_literal_from_literal(value);
if(!value)
return 1;
}
/* it is OK to bind to NULL */
rasqal_variable_set_value(v, value);
}
}
return 0;
}
/**
* rasqal_row_print:
* @row: query result row
* @fp: FILE* handle
*
* INTERNAL - Print a query result row.
*/
int
rasqal_row_print(rasqal_row* row, FILE* fh)
{
rasqal_rowsource* rowsource = row->rowsource;
int i;
fputs("result[", fh);
for(i = 0; i < row->size; i++) {
/* Do not use rasqal_query_results_get_binding_name(row->results, i);
* as it does not work for a construct result
*/
const unsigned char *name = NULL;
rasqal_literal *value;
if(rowsource) {
rasqal_variable* v;
v = rasqal_rowsource_get_variable_by_offset(rowsource, i);
if(v)
name = v->name;
}
value = row->values[i];
if(i > 0)
fputs(", ", fh);
if(name)
fprintf(fh, "%s=", name);
if(value)
rasqal_literal_print(value, fh);
else
fputs("NULL", fh);
}
if(row->order_size > 0) {
fputs(" with ordering values [", fh);
for(i = 0; i < row->order_size; i++) {
rasqal_literal *value = row->order_values[i];
if(i > 0)
fputs(", ", fh);
if(value)
rasqal_literal_print(value, fh);
else
fputs("NULL", fh);
}
fputs("]", fh);
}
if(row->group_id >= 0)
fprintf(fh, " group %d", row->group_id);
fprintf(fh, " offset %d]", row->offset);
return 0;
}
/**
* rasqal_rowsource_copy_variables:
* @dest_rowsource: destination rowsource to copy into
* @src_rowsource: source rowsource to copy from
*
* INTERNAL - Copy a variables projection from one rowsource to another
*
* This adds new variables from @src_rowsource to the
* @dest_rowsource, it does not add duplicates.
*
* Return value: 0 on success, non-0 on failure
**/
int
rasqal_rowsource_copy_variables(rasqal_rowsource *dest_rowsource,
rasqal_rowsource *src_rowsource)
{
int i;
for(i = 0; i < src_rowsource->size; i++) {
rasqal_variable* v;
v = rasqal_rowsource_get_variable_by_offset(src_rowsource, i);
if(rasqal_rowsource_add_variable(dest_rowsource, v) < 0)
return 1;
}
return 0;
}
static int
rasqal_join_rowsource_ensure_variables(rasqal_rowsource* rowsource,
void *user_data)
{
rasqal_join_rowsource_context* con;
int map_size;
int i;
con = (rasqal_join_rowsource_context*)user_data;
if(rasqal_rowsource_ensure_variables(con->left))
return 1;
if(rasqal_rowsource_ensure_variables(con->right))
return 1;
map_size = rasqal_rowsource_get_size(con->right);
con->right_map = RASQAL_MALLOC(int*, RASQAL_GOOD_CAST(size_t,
sizeof(int) * RASQAL_GOOD_CAST(size_t, map_size)));
if(!con->right_map)
return 1;
rowsource->size = 0;
/* copy in variables from left rowsource */
if(rasqal_rowsource_copy_variables(rowsource, con->left))
return 1;
/* add any new variables not already seen from right rowsource */
for(i = 0; i < map_size; i++) {
rasqal_variable* v;
int offset;
v = rasqal_rowsource_get_variable_by_offset(con->right, i);
if(!v)
break;
offset = rasqal_rowsource_add_variable(rowsource, v);
if(offset < 0)
return 1;
con->right_map[i] = offset;
}
return 0;
}
/**
* rasqal_rowsource_copy_variables:
* @dest_rowsource: destination rowsource to copy into
* @src_rowsource: source rowsource to copy from
*
* INTERNAL - Copy a variables projection from one rowsource to another
*
* This adds new variables from @src_rowsource to the
* @dest_rowsource, it does not add duplicates.
*
* Return value: 0 on success, non-0 on failure
**/
int
rasqal_rowsource_copy_variables(rasqal_rowsource *dest_rowsource,
rasqal_rowsource *src_rowsource)
{
int i;
for(i = 0; i < src_rowsource->size; i++) {
rasqal_variable* v;
v = rasqal_rowsource_get_variable_by_offset(src_rowsource, i);
if(!v) {
RASQAL_DEBUG5("%s src rowsource %p failed to return variable at offset %d, size %d\n",
src_rowsource->handler->name, src_rowsource,
i, src_rowsource->size);
return 1;
}
if(rasqal_rowsource_add_variable(dest_rowsource, v) < 0)
return 1;
}
return 0;
}
static void
rasqal_rowsource_print_header(rasqal_rowsource* rowsource, FILE* fh)
{
int i;
fputs("variables: ", fh);
for(i = 0; i < rowsource->size; i++) {
rasqal_variable* v;
const unsigned char *name = NULL;
v = rasqal_rowsource_get_variable_by_offset(rowsource, i);
if(v)
name = v->name;
if(i > 0)
fputs(", ", fh);
if(name)
fputs((const char*)name, fh);
else
fputs("NULL", fh);
}
fputs("\n", fh);
}
static rasqal_row*
rasqal_aggregation_rowsource_read_row(rasqal_rowsource* rowsource,
void *user_data)
{
rasqal_aggregation_rowsource_context* con;
rasqal_row* row;
int error = 0;
con = (rasqal_aggregation_rowsource_context*)user_data;
if(con->finished)
return NULL;
/* Iterate over input rows until last row seen or group done */
while(1) {
error = 0;
if(con->saved_row)
row = con->saved_row;
else
row = rasqal_rowsource_read_row(con->rowsource);
if(!row) {
/* End of input - calculate last aggregation result */
con->finished = 1;
break;
}
if(con->last_group_id != row->group_id) {
int i;
if(!con->saved_row && con->last_group_id >= 0) {
/* Existing aggregation is done - return result */
/* save current row for next time this function is called */
con->saved_row = row;
row = NULL;
#ifdef RASQAL_DEBUG
RASQAL_DEBUG2("Aggregation ending group %d", con->last_group_id);
fputc('\n', DEBUG_FH);
#endif
/* Empty distinct maps */
for(i = 0; i < con->expr_count; i++) {
rasqal_agg_expr_data* expr_data = &con->expr_data[i];
if(expr_data->map) {
rasqal_free_map(expr_data->map);
expr_data->map = NULL;
}
}
break;
}
/* reference is now in 'row' variable */
con->saved_row = NULL;
#ifdef RASQAL_DEBUG
RASQAL_DEBUG2("Aggregation starting group %d", row->group_id);
fputc('\n', DEBUG_FH);
#endif
/* next time this function is called we continue here */
for(i = 0; i < con->expr_count; i++) {
rasqal_agg_expr_data* expr_data = &con->expr_data[i];
if(!expr_data->agg_user_data) {
/* init once */
expr_data->agg_user_data = rasqal_builtin_agg_expression_execute_init(rowsource->world,
expr_data->expr);
if(!expr_data->agg_user_data) {
error = 1;
break;
}
}
/* Init map for each group */
if(expr_data->expr->flags & RASQAL_EXPR_FLAG_DISTINCT) {
expr_data->map = rasqal_new_literal_sequence_sort_map(1 /* is_distinct */,
0 /* compare_flags */);
if(!expr_data->map) {
error = 1;
break;
}
}
}
if(error)
break;
con->last_group_id = row->group_id;
} /* end if handling change of group ID */
/* Bind the values in the input row to the variables in the table */
rasqal_row_bind_variables(row, rowsource->query->vars_table);
/* Evaluate the expressions giving a sequence of literals to
* run the aggregation step over.
*/
if(1) {
int i;
if(!con->step_count) {
/* copy first value row from input rowsource */
for(i = 0; i < con->input_values_count; i++) {
rasqal_literal* value;
value = rasqal_new_literal_from_literal(row->values[i]);
raptor_sequence_set_at(con->input_values, i, value);
}
}
con->step_count++;
for(i = 0; i < con->expr_count; i++) {
rasqal_agg_expr_data* expr_data = &con->expr_data[i];
raptor_sequence* seq;
/* SPARQL Aggregation uses ListEvalE() to evaluate - ignoring
* errors and filtering out expressions that fail
*/
seq = rasqal_expression_sequence_evaluate(rowsource->query,
expr_data->exprs_seq,
/* ignore_errors */ 1,
&error);
if(error)
continue;
if(expr_data->map) {
if(rasqal_literal_sequence_sort_map_add_literal_sequence(expr_data->map,
seq)) {
/* duplicate found
*
* The above function just freed seq so no data is lost
*/
continue;
}
}
#ifdef RASQAL_DEBUG
RASQAL_DEBUG1("Aggregation step over literals: ");
raptor_sequence_print(seq, DEBUG_FH);
fputc('\n', DEBUG_FH);
#endif
error = rasqal_builtin_agg_expression_execute_step(expr_data->agg_user_data,
seq);
/* when DISTINCTing, seq remains owned by the map
* otherwise seq is local and must be freed
*/
if(!expr_data->map)
raptor_free_sequence(seq);
if(error)
break;
}
}
rasqal_free_row(row); row = NULL;
if(error)
break;
} /* end while reading rows */
if(error) {
/* Discard row on error */
if(row) {
rasqal_free_row(row);
row = NULL;
}
} else if (con->last_group_id >= 0) {
int offset = 0;
int i;
/* Generate result row and reset for next group */
row = rasqal_new_row(rowsource);
/* Copy scalar results through */
for(i = 0; i < con->input_values_count; i++) {
rasqal_literal* result;
/* Reset: get and delete any stored input rowsource literal */
result = (rasqal_literal*)raptor_sequence_delete_at(con->input_values, i);
rasqal_row_set_value_at(row, offset, result);
rasqal_free_literal(result);
offset++;
}
/* Set aggregate results */
for(i = 0; i < con->expr_count; i++) {
rasqal_literal* result;
rasqal_agg_expr_data* expr_data = &con->expr_data[i];
rasqal_variable* v;
/* Calculate the result because the input ended or a new group started */
result = rasqal_builtin_agg_expression_execute_result(expr_data->agg_user_data);
#ifdef RASQAL_DEBUG
RASQAL_DEBUG1("Aggregation ending group with result: ");
if(result)
rasqal_literal_print(result, DEBUG_FH);
else
fputs("NULL", DEBUG_FH);
fputc('\n', DEBUG_FH);
#endif
v = rasqal_rowsource_get_variable_by_offset(rowsource, offset);
result = rasqal_new_literal_from_literal(result);
/* it is OK to bind to NULL */
rasqal_variable_set_value(v, result);
rasqal_row_set_value_at(row, offset, result);
if(result)
rasqal_free_literal(result);
offset++;
if(rasqal_builtin_agg_expression_execute_reset(expr_data->agg_user_data)) {
rasqal_free_row(row);
row = NULL;
break;
}
}
con->step_count = 0;
if(row)
row->offset = con->offset++;
}
return row;
}
int
main(int argc, char *argv[])
{
const char *program = rasqal_basename(argv[0]);
rasqal_rowsource *rowsource = NULL;
rasqal_world* world = NULL;
rasqal_query* query = NULL;
raptor_sequence* row_seq = NULL;
raptor_sequence* expr_args_seq = NULL;
int failures = 0;
rasqal_variables_table* vt;
rasqal_rowsource *input_rs = NULL;
raptor_sequence* vars_seq = NULL;
raptor_sequence* exprs_seq = NULL;
int test_id;
world = rasqal_new_world();
if(!world || rasqal_world_open(world)) {
fprintf(stderr, "%s: rasqal_world init failed\n", program);
return(1);
}
query = rasqal_new_query(world, "sparql", NULL);
vt = query->vars_table;
for(test_id = 0; test_id < AGGREGATION_TESTS_COUNT; test_id++) {
int input_vars_count = test_data[test_id].input_vars;
int output_rows_count = test_data[test_id].output_rows;
int output_vars_count = test_data[test_id].output_vars;
const int* input_group_ids = test_data[test_id].group_ids;
const int* result_int_data = test_data[test_id].result_data;
const char* const* result_string_data = test_data[test_id].result_string_data;
rasqal_op op = test_data[test_id].op;
raptor_sequence* seq = NULL;
int count;
int size;
int i;
char* output_var_name;
rasqal_variable* output_var;
rasqal_expression* expr;
int output_row_size = (input_vars_count + output_vars_count);
if(output_vars_count != 1) {
fprintf(stderr,
"%s: test %d expects %d variables which is not supported. Test skipped\n",
program, test_id, output_vars_count);
failures++;
goto tidy;
}
row_seq = rasqal_new_row_sequence(world, vt, test_data[test_id].data,
test_data[test_id].input_vars, &vars_seq);
if(row_seq) {
for(i = 0; i < test_data[test_id].input_rows; i++) {
rasqal_row* row = (rasqal_row*)raptor_sequence_get_at(row_seq, i);
row->group_id = input_group_ids[i];
}
input_rs = rasqal_new_rowsequence_rowsource(world, query, vt,
row_seq, vars_seq);
/* vars_seq and row_seq are now owned by input_rs */
vars_seq = row_seq = NULL;
}
if(!input_rs) {
fprintf(stderr, "%s: failed to create rowsequence rowsource\n", program);
failures++;
goto tidy;
}
expr_args_seq = raptor_new_sequence((raptor_data_free_handler)rasqal_free_expression,
(raptor_data_print_handler)rasqal_expression_print);
if(test_data[test_id].expr_agg_vars[0] != NULL) {
int vindex;
const unsigned char* var_name;
for(vindex = 0;
(var_name = (const unsigned char*)test_data[test_id].expr_agg_vars[vindex] );
vindex++) {
rasqal_variable* v;
rasqal_literal *l = NULL;
rasqal_expression* e = NULL;
v = rasqal_variables_table_get_by_name(vt, var_name);
if(v)
l = rasqal_new_variable_literal(world, v);
if(l)
e = rasqal_new_literal_expression(world, l);
if(e)
raptor_sequence_push(expr_args_seq, e);
else {
fprintf(stderr, "%s: failed to create variable %s\n", program,
(const char*)var_name);
failures++;
goto tidy;
}
}
} /* if vars */
output_var_name = (char*)RASQAL_MALLOC(cstring, 5);
memcpy(output_var_name, "fake", 5);
output_var = rasqal_variables_table_add(vt, RASQAL_VARIABLE_TYPE_ANONYMOUS,
(const unsigned char*)output_var_name, NULL);
expr = make_test_expr(world, expr_args_seq, op);
/* expr_args_seq is now owned by expr */
expr_args_seq = NULL;
exprs_seq = raptor_new_sequence((raptor_data_free_handler)rasqal_free_expression,
(raptor_data_print_handler)rasqal_expression_print);
raptor_sequence_push(exprs_seq, expr);
/* expr is now owned by exprs_seq */
expr = NULL;
vars_seq = raptor_new_sequence((raptor_data_free_handler)rasqal_free_variable,
(raptor_data_print_handler)rasqal_variable_print);
output_var = rasqal_new_variable_from_variable(output_var);
raptor_sequence_push(vars_seq, output_var);
rowsource = rasqal_new_aggregation_rowsource(world, query, input_rs,
exprs_seq, vars_seq);
/* exprs_seq, vars_seq and input_rs are now owned by rowsource */
exprs_seq = NULL; vars_seq = NULL; input_rs = NULL;
if(!rowsource) {
fprintf(stderr, "%s: failed to create aggregation rowsource\n", program);
failures++;
goto tidy;
}
/* Test the rowsource */
seq = rasqal_rowsource_read_all_rows(rowsource);
if(!seq) {
fprintf(stderr,
"%s: test %d rasqal_rowsource_read_all_rows() returned a NULL seq for a aggregation rowsource\n",
program, test_id);
failures++;
goto tidy;
}
count = raptor_sequence_size(seq);
if(count != output_rows_count) {
fprintf(stderr,
"%s: test %d rasqal_rowsource_read_all_rows() returned %d rows for a aggregation rowsource, expected %d\n",
program, test_id, count, output_rows_count);
failures++;
goto tidy;
}
size = rasqal_rowsource_get_size(rowsource);
if(size != output_row_size) {
fprintf(stderr,
"%s: test %d rasqal_rowsource_get_size() returned %d columns (variables) for a aggregation rowsource, expected %d\n",
program, test_id, size, output_row_size);
failures++;
goto tidy;
}
if(result_int_data) {
for(i = 0; i < output_rows_count; i++) {
rasqal_row* row = (rasqal_row*)raptor_sequence_get_at(seq, i);
rasqal_literal* value;
int integer;
int expected_integer = result_int_data[i];
int vc;
if(row->size != output_row_size) {
fprintf(stderr,
"%s: test %d row #%d is size %d expected %d\n",
program, test_id, i, row->size, output_row_size);
failures++;
goto tidy;
}
/* Expected variable ordering in output row is:
* {input vars} {output_vars}
*/
for(vc = 0; vc < output_vars_count; vc++) {
rasqal_variable* row_var;
int offset = input_vars_count + vc;
row_var = rasqal_rowsource_get_variable_by_offset(rowsource, offset);
value = row->values[offset];
if(!value) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d result is NULL\n",
program, test_id, i, row_var->name, vc);
failures++;
goto tidy;
}
if(value->type != RASQAL_LITERAL_INTEGER) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d result is type %s expected integer\n",
program, test_id, i, row_var->name, vc,
rasqal_literal_type_label(value->type));
failures++;
goto tidy;
}
integer = rasqal_literal_as_integer(value, NULL);
if(integer != expected_integer) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d result is %d expected %d\n",
program, test_id, i, row_var->name, vc,
integer, expected_integer);
failures++;
goto tidy;
}
}
}
}
if(result_string_data) {
for(i = 0; i < output_rows_count; i++) {
rasqal_row* row = (rasqal_row*)raptor_sequence_get_at(seq, i);
rasqal_literal* value;
const unsigned char* str;
const char* expected_string = result_string_data[i];
int vc;
if(row->size != output_row_size) {
fprintf(stderr,
"%s: test %d row #%d is size %d expected %d\n",
program, test_id, i, row->size, output_row_size);
failures++;
goto tidy;
}
/* Expected variable ordering in output row is:
* {input vars} {output_vars}
*/
for(vc = 0; vc < output_vars_count; vc++) {
rasqal_variable* row_var;
int offset = input_vars_count + vc;
row_var = rasqal_rowsource_get_variable_by_offset(rowsource, offset);
value = row->values[offset];
if(!value) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d result is NULL\n",
program, test_id, i, row_var->name, vc);
failures++;
goto tidy;
}
if(value->type != RASQAL_LITERAL_STRING) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d is type %s expected integer\n",
program, test_id, i, row_var->name, vc,
rasqal_literal_type_label(value->type));
failures++;
goto tidy;
}
str = rasqal_literal_as_string(value);
if(strcmp((const char*)str, expected_string)) {
fprintf(stderr,
"%s: test %d row #%d %s value #%d is %s expected %s\n",
program, test_id, i, row_var->name, vc,
str, expected_string);
failures++;
goto tidy;
}
}
}
}
#ifdef RASQAL_DEBUG
rasqal_rowsource_print_row_sequence(rowsource, seq, stderr);
#endif
raptor_free_sequence(seq); seq = NULL;
rasqal_free_rowsource(rowsource); rowsource = NULL;
if(expr_args_seq)
raptor_free_sequence(expr_args_seq);
expr_args_seq = NULL;
}
tidy:
if(exprs_seq)
raptor_free_sequence(exprs_seq);
if(vars_seq)
raptor_free_sequence(vars_seq);
if(expr_args_seq)
raptor_free_sequence(expr_args_seq);
if(rowsource)
rasqal_free_rowsource(rowsource);
if(input_rs)
rasqal_free_rowsource(input_rs);
if(query)
rasqal_free_query(query);
if(world)
rasqal_free_world(world);
return failures;
}
int
main(int argc, char *argv[])
{
const char *program = rasqal_basename(argv[0]);
rasqal_rowsource *rowsource = NULL;
rasqal_rowsource *left_rs = NULL;
rasqal_rowsource *right_rs = NULL;
rasqal_world* world = NULL;
rasqal_query* query = NULL;
int count;
raptor_sequence* seq = NULL;
int failures = 0;
rasqal_variables_table* vt;
int size;
int expected_size = EXPECTED_COLUMNS_COUNT;
int i;
raptor_sequence* vars_seq = NULL;
int test_count;
world = rasqal_new_world(); rasqal_world_open(world);
query = rasqal_new_query(world, "sparql", NULL);
vt = query->vars_table;
for(test_count = 0; test_count < JOIN_TESTS_COUNT; test_count++) {
rasqal_join_type join_type = join_test_config[test_count].join_type;
int expected_count = join_test_config[test_count].expected;
int vars_count;
fprintf(stderr, "%s: test #%d join type %d\n", program, test_count,
RASQAL_GOOD_CAST(int, join_type));
/* 2 variables and 3 rows */
vars_count = 2;
seq = rasqal_new_row_sequence(world, vt, join_1_data_2x3_rows, vars_count,
&vars_seq);
if(!seq) {
fprintf(stderr,
"%s: failed to create left sequence of %d vars\n", program,
vars_count);
failures++;
goto tidy;
}
left_rs = rasqal_new_rowsequence_rowsource(world, query, vt, seq, vars_seq);
if(!left_rs) {
fprintf(stderr, "%s: failed to create left rowsource\n", program);
failures++;
goto tidy;
}
/* vars_seq and seq are now owned by left_rs */
vars_seq = seq = NULL;
/* 3 variables and 2 rows */
vars_count = 3;
seq = rasqal_new_row_sequence(world, vt, join_2_data_3x2_rows, vars_count,
&vars_seq);
if(!seq) {
fprintf(stderr,
"%s: failed to create right sequence of %d rows\n", program,
vars_count);
failures++;
goto tidy;
}
right_rs = rasqal_new_rowsequence_rowsource(world, query, vt, seq, vars_seq);
if(!right_rs) {
fprintf(stderr, "%s: failed to create right rowsource\n", program);
failures++;
goto tidy;
}
/* vars_seq and seq are now owned by right_rs */
vars_seq = seq = NULL;
rowsource = rasqal_new_join_rowsource(world, query, left_rs, right_rs,
join_type, NULL);
if(!rowsource) {
fprintf(stderr, "%s: failed to create join rowsource\n", program);
failures++;
goto tidy;
}
/* left_rs and right_rs are now owned by rowsource */
left_rs = right_rs = NULL;
seq = rasqal_rowsource_read_all_rows(rowsource);
if(!seq) {
fprintf(stderr,
"%s: read_rows returned a NULL seq for a join rowsource\n",
program);
failures++;
goto tidy;
}
count = raptor_sequence_size(seq);
if(count != expected_count) {
fprintf(stderr,
"%s: read_rows returned %d rows for a join rowsource, expected %d\n",
program, count, expected_count);
failures++;
goto tidy;
}
size = rasqal_rowsource_get_size(rowsource);
if(size != expected_size) {
fprintf(stderr,
"%s: read_rows returned %d columns (variables) for a join rowsource, expected %d\n",
program, size, expected_size);
failures++;
goto tidy;
}
for(i = 0; i < expected_size; i++) {
rasqal_variable* v;
const char* name = NULL;
const char *expected_name = join_result_vars[i];
v = rasqal_rowsource_get_variable_by_offset(rowsource, i);
if(!v) {
fprintf(stderr,
"%s: read_rows had NULL column (variable) #%d expected %s\n",
program, i, expected_name);
failures++;
goto tidy;
}
name = RASQAL_GOOD_CAST(const char*, v->name);
if(strcmp(name, expected_name)) {
fprintf(stderr,
"%s: read_rows returned column (variable) #%d %s but expected %s\n",
program, i, name, expected_name);
failures++;
goto tidy;
}
}
#ifdef RASQAL_DEBUG
rasqal_rowsource_print_row_sequence(rowsource, seq, DEBUG_FH);
#endif
raptor_free_sequence(seq); seq = NULL;
rasqal_free_rowsource(rowsource); rowsource = NULL;
/* end test_count loop */
}
tidy:
if(seq)
raptor_free_sequence(seq);
if(left_rs)
rasqal_free_rowsource(left_rs);
if(right_rs)
rasqal_free_rowsource(right_rs);
if(rowsource)
rasqal_free_rowsource(rowsource);
if(query)
rasqal_free_query(query);
if(world)
rasqal_free_world(world);
return failures;
}
