func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
var qs QuadStore
conn, err := connectSQLTables(addr, options)
if err != nil {
return nil, err
}
localOpt, localOptOk, err := options.BoolKey("local_optimize")
if err != nil {
return nil, err
}
qs.db = conn
qs.sqlFlavor = "postgres"
qs.size = -1
qs.sizes = lru.New(1024)
qs.ids = lru.New(1024)
// Skip size checking by default.
qs.noSizes = true
if localOptOk {
if localOpt {
qs.noSizes = false
}
}
qs.useEstimates, _, err = options.BoolKey("use_estimates")
if err != nil {
return nil, err
}
return &qs, nil
}
func newQuadStore(addr string, options graph.Options) (graph.QuadStore, error) {
var qs QuadStore
conn, err := mgo.Dial(addr)
if err != nil {
return nil, err
}
conn.SetSafe(&mgo.Safe{})
dbName := DefaultDBName
val, ok, err := options.StringKey("database_name")
if err != nil {
return nil, err
} else if ok {
dbName = val
}
qs.db = conn.DB(dbName)
if err := ensureIndexes(qs.db); err != nil {
conn.Close()
return nil, err
}
qs.session = conn
qs.ids = lru.New(1 << 16)
qs.sizes = lru.New(1 << 16)
return &qs, nil
}