BootstrapCatCache.h

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#ifndef CATALOG_BOOTSTRAPCATCACHE_H
#define CATALOG_BOOTSTRAPCATCACHE_H
 
#include "tdb.h"
 
#include <absl/container/flat_hash_map.h>
 
#include "catalog/systables.h"
#include "catalog/TableDesc.h"
#include "catalog/systables/bootstrap_data.h"
 
namespace taco {
 
class BootstrapCatCache {
public:
    BootstrapCatCache();
 
    ~BootstrapCatCache();
 
    void Init();
 
    const SysTable_Table *FindTable(Oid oid);
 
    const SysTable_Type *FindType(Oid oid);
 
    std::vector<const SysTable_Column*> FindColumns(Oid tabid);
 
    const TableDesc *FindTableDesc(Oid oid);
 
    const SysTable_Function *FindFunction(Oid oid);
 
private:
    void CreateTableDesc(const std::vector<const SysTable_Column*> &columns);
 
    SysTable_Table  m_table[num_bootstrap_tables];
    SysTable_Type   m_type[num_bootstrap_types];
    SysTable_Column m_column[num_bootstrap_columns];
    SysTable_Function m_function[num_bootstrap_functions];
 
    absl::flat_hash_map<Oid, const SysTable_Table*> m_tabid_lookup_table;
    absl::flat_hash_map<Oid, const SysTable_Type*> m_typid_lookup_table;
    absl::flat_hash_map<Oid, const SysTable_Function*> m_funcid_lookup_table;
 
    std::vector<std::unique_ptr<TableDesc>> m_table_desc;
    absl::flat_hash_map<Oid, const TableDesc *> m_table_desc_lookup_table;
 
};
 
}       // namespace taco
 
#endif  // CATALOG_BOOTSTRAP_CATCACHE_H