/*!
* bigint start_vid,
* bigint end_vid,
* float agg_cost,
*/
void pgr_get_matrixRows(
char *sql,
Matrix_cell_t **rows,
size_t *total_rows) {
clock_t start_t = clock();
const int tuple_limit = 1000000;
size_t ntuples;
size_t total_tuples = 0;
Column_info_t info[3];
int i;
for (i = 0; i < 3; ++i) {
info[i].colNumber = -1;
info[i].type = 0;
info[i].strict = true;
info[i].eType = ANY_INTEGER;
}
info[0].name = strdup("start_vid");
info[1].name = strdup("end_vid");
info[2].name = strdup("agg_cost");
info[2].eType = ANY_NUMERICAL;
void *SPIplan;
SPIplan = pgr_SPI_prepare(sql);
Portal SPIportal;
SPIportal = pgr_SPI_cursor_open(SPIplan);
bool moredata = TRUE;
(*total_rows) = total_tuples;
while (moredata == TRUE) {
SPI_cursor_fetch(SPIportal, TRUE, tuple_limit);
if (total_tuples == 0)
pgr_fetch_column_info(info, 3);
ntuples = SPI_processed;
total_tuples += ntuples;
if (ntuples > 0) {
if ((*rows) == NULL)
(*rows) = (Matrix_cell_t *)palloc0(
total_tuples * sizeof(Matrix_cell_t));
else
(*rows) = (Matrix_cell_t *)repalloc(
(*rows), total_tuples * sizeof(Matrix_cell_t));
if ((*rows) == NULL) {
elog(ERROR, "Out of memory");
}
SPITupleTable *tuptable = SPI_tuptable;
TupleDesc tupdesc = SPI_tuptable->tupdesc;
PGR_DBG("processing %ld edge tupĺes", ntuples);
size_t t;
for (t = 0; t < ntuples; t++) {
HeapTuple tuple = tuptable->vals[t];
pgr_fetch_row(&tuple, &tupdesc, info,
&(*rows)[total_tuples - ntuples + t]);
}
SPI_freetuptable(tuptable);
} else {
moredata = FALSE;
}
}
SPI_cursor_close(SPIportal);
if (total_tuples == 0) {
(*total_rows) = 0;
PGR_DBG("NO rows");
return;
}
(*total_rows) = total_tuples;
time_msg(" reading Edges", start_t, clock());
}
void
pgr_get_restriction_data(
char *restrictions_sql,
Restrict_t **restrictions,
size_t *total_restrictions) {
const int tuple_limit = 1000000;
clock_t start_t = clock();
PGR_DBG("pgr_get_restriction_data");
PGR_DBG("%s", restrictions_sql);
Column_info_t info[3];
int i;
for (i = 0; i < 3; ++i) {
info[i].colNumber = -1;
info[i].type = 0;
info[i].strict = true;
info[i].eType = ANY_INTEGER;
}
info[0].name = strdup("id");
info[1].name = strdup("cost");
info[2].name = strdup("restricted_edges");
info[1].eType = ANY_NUMERICAL;
info[2].eType = ANY_INTEGER_ARRAY;
#if 0
// experiment starts
size_t total_tuples = (*total_restrictions) ;
(*restrictions) = (Restrict_t *)palloc0(sizeof(Restrict_t));
(*restrictions)[0].id = 1;
(*restrictions)[0].cost = -1;
(*restrictions)[0].restricted_edges[0] = 4;
(*restrictions)[0].restricted_edges[1] = 7;
// experiment ends
#endif
#if 1
size_t ntuples;
size_t total_tuples;
void *SPIplan;
SPIplan = pgr_SPI_prepare(restrictions_sql);
Portal SPIportal;
SPIportal = pgr_SPI_cursor_open(SPIplan);
bool moredata = TRUE;
(*total_restrictions) = total_tuples = 0;
while (moredata == TRUE) {
SPI_cursor_fetch(SPIportal, TRUE, tuple_limit);
if (total_tuples == 0) {
pgr_fetch_column_info(info, 3);
}
ntuples = SPI_processed;
total_tuples += ntuples;
PGR_DBG("SPI_processed %ld", ntuples);
if (ntuples > 0) {
if ((*restrictions) == NULL)
(*restrictions) = (Restrict_t *)palloc0(
total_tuples * sizeof(Restrict_t));
else
(*restrictions) = (Restrict_t *)repalloc(
(*restrictions),
total_tuples * sizeof(Restrict_t));
if ((*restrictions) == NULL) {
elog(ERROR, "Out of memory");
}
size_t t;
SPITupleTable *tuptable = SPI_tuptable;
TupleDesc tupdesc = SPI_tuptable->tupdesc;
PGR_DBG("processing %ld", ntuples);
for (t = 0; t < ntuples; t++) {
HeapTuple tuple = tuptable->vals[t];
fetch_restriction(&tuple, &tupdesc, info,
&(*restrictions)[total_tuples - ntuples + t]);
}
SPI_freetuptable(tuptable);
} else {
moredata = FALSE;
}
}
SPI_cursor_close(SPIportal);
if (total_tuples == 0) {
(*total_restrictions) = 0;
PGR_DBG("NO restrictions");
return;
}
(*total_restrictions) = total_tuples;
#endif
PGR_DBG("Finish reading %ld data, %ld",
total_tuples,
(*total_restrictions));
clock_t end_t = clock();
time_msg(" reading Restrictions", start_t, end_t);
}
void
pgr_get_customers_data(
char *customers_sql,
Customer_t **customers,
size_t *total_customers) {
const int tuple_limit = 1000000;
PGR_DBG("pgr_get_customers_data");
PGR_DBG("%s", customers_sql);
Column_info_t info[9];
int i;
for (i = 0; i < 9; ++i) {
info[i].colNumber = -1;
info[i].type = 0;
info[i].strict = true;
info[i].eType = ANY_NUMERICAL;
}
/*!
int64_t id;
double x;
double y;
double demand;
double Etime;
double Ltime;
double Stime;
int64_t Pindex;
int64_t Dindex;
double Ddist;
*/
info[0].name = strdup("id");
info[1].name = strdup("x");
info[2].name = strdup("y");
info[3].name = strdup("demand");
info[4].name = strdup("opentime");
info[5].name = strdup("closetime");
info[6].name = strdup("servicetime");
info[7].name = strdup("pindex");
info[8].name = strdup("dindex");
info[0].eType = ANY_INTEGER;
info[7].eType = ANY_INTEGER;
info[8].eType = ANY_INTEGER;
size_t ntuples;
size_t total_tuples;
void *SPIplan;
SPIplan = pgr_SPI_prepare(customers_sql);
Portal SPIportal;
SPIportal = pgr_SPI_cursor_open(SPIplan);
bool moredata = TRUE;
(*total_customers) = total_tuples = 0;
/* on the first tuple get the column numbers */
while (moredata == TRUE) {
SPI_cursor_fetch(SPIportal, TRUE, tuple_limit);
if (total_tuples == 0) {
pgr_fetch_column_info(info, 9);
}
ntuples = SPI_processed;
total_tuples += ntuples;
PGR_DBG("SPI_processed %ld", ntuples);
if (ntuples > 0) {
if ((*customers) == NULL)
(*customers) = (Customer_t *)palloc0(
total_tuples * sizeof(Customer_t));
else
(*customers) = (Customer_t *)repalloc(
(*customers), total_tuples * sizeof(Customer_t));
if ((*customers) == NULL) {
elog(ERROR, "Out of memory");
}
size_t t;
SPITupleTable *tuptable = SPI_tuptable;
TupleDesc tupdesc = SPI_tuptable->tupdesc;
PGR_DBG("processing %ld", ntuples);
for (t = 0; t < ntuples; t++) {
HeapTuple tuple = tuptable->vals[t];
fetch_customer(&tuple, &tupdesc, info,
&(*customers)[total_tuples - ntuples + t]);
}
SPI_freetuptable(tuptable);
} else {
moredata = FALSE;
}
}
SPI_cursor_close(SPIportal);
if (total_tuples == 0) {
(*total_customers) = 0;
PGR_DBG("NO customers");
return;
}
(*total_customers) = total_tuples;
PGR_DBG("Finish reading %ld data, %ld", total_tuples, (*total_customers));
}
static
void
get_edges_basic(
char *sql,
pgr_basic_edge_t **edges,
size_t *totalTuples,
bool ignore_id) {
clock_t start_t = clock();
const int tuple_limit = 1000000;
size_t ntuples;
size_t total_tuples;
size_t valid_edges;
Column_info_t info[5];
int i;
for (i = 0; i < 5; ++i) {
info[i].colNumber = -1;
info[i].type = 0;
info[i].strict = true;
info[i].eType = ANY_INTEGER;
}
info[0].name = strdup("id");
info[1].name = strdup("source");
info[2].name = strdup("target");
info[3].name = strdup("going");
info[4].name = strdup("coming");
info[0].strict = !ignore_id;
info[4].strict = false;
info[3].eType = ANY_NUMERICAL;
info[4].eType = ANY_NUMERICAL;
void *SPIplan;
SPIplan = pgr_SPI_prepare(sql);
Portal SPIportal;
SPIportal = pgr_SPI_cursor_open(SPIplan);
bool moredata = TRUE;
(*totalTuples) = total_tuples = valid_edges = 0;
int64_t default_id = 0;
while (moredata == TRUE) {
SPI_cursor_fetch(SPIportal, TRUE, tuple_limit);
if (total_tuples == 0)
pgr_fetch_column_info(info, 5);
ntuples = SPI_processed;
total_tuples += ntuples;
if (ntuples > 0) {
if ((*edges) == NULL)
(*edges) = (pgr_basic_edge_t *)palloc0(
total_tuples * sizeof(pgr_basic_edge_t));
else
(*edges) = (pgr_basic_edge_t *)repalloc(
(*edges), total_tuples * sizeof(pgr_basic_edge_t));
if ((*edges) == NULL) {
elog(ERROR, "Out of memory");
}
size_t t;
SPITupleTable *tuptable = SPI_tuptable;
TupleDesc tupdesc = SPI_tuptable->tupdesc;
for (t = 0; t < ntuples; t++) {
HeapTuple tuple = tuptable->vals[t];
fetch_basic_edge(&tuple, &tupdesc, info,
&default_id,
&(*edges)[total_tuples - ntuples + t],
&valid_edges);
}
SPI_freetuptable(tuptable);
} else {
moredata = FALSE;
}
}
SPI_cursor_close(SPIportal);
if (total_tuples == 0 || valid_edges == 0) {
PGR_DBG("No edges found");
}
(*totalTuples) = total_tuples;
PGR_DBG("Reading %ld edges", total_tuples);
time_msg("reading edges", start_t, clock());
}
