Operator.h

Go to the documentation of this file.

 
#ifndef CATALOG_SYSTABLES_Operator_H
#define CATALOG_SYSTABLES_Operator_H
 
namespace taco {
 
class SysTable_Operator {
public:
 
    constexpr uint8_t
    optype() const {
        return m_optype;
    }
 
    constexpr Oid
    opfuncid() const {
        return m_opfuncid;
    }
 
    constexpr Oid
    oparg0typid() const {
        return m_oparg0typid;
    }
 
    constexpr Oid
    oparg1typid() const {
        return m_oparg1typid;
    }
 
 
 
private:
    SysTable_Operator(
        uint8_t optype,
        Oid opfuncid,
        Oid oparg0typid,
        Oid oparg1typid
 
    ):
    m_optype((optype)),
    m_opfuncid((opfuncid)),
    m_oparg0typid((oparg0typid)),
    m_oparg1typid((oparg1typid))
{}
 
    uint8_t m_optype;
    Oid m_opfuncid;
    Oid m_oparg0typid;
    Oid m_oparg1typid;
 
    std::vector<Datum> GetDatumVector() const;
 
    static SysTable_Operator *Create(const std::vector<Datum>&);
 
    SysTable_Operator(const SysTable_Operator&) = default;
    SysTable_Operator& operator=(const SysTable_Operator&) = default;
 
    friend class BootstrapCatCache;
    friend class CatCacheInternalAccess;
 
public:
    // The following are constants of the field ids in the systables.
    // These are mostly used by the catalog cache impl. to prevent accidental
    // misspelling of column names.
 
    inline static constexpr FieldId
    optype_colid() {
        return 0;
    }
 
    inline static constexpr FieldId
    opfuncid_colid() {
        return 1;
    }
 
    inline static constexpr FieldId
    oparg0typid_colid() {
        return 2;
    }
 
    inline static constexpr FieldId
    oparg1typid_colid() {
        return 3;
    }
 
 
};
 
}        // namespace taco
 
#endif  // CATALOG_SYSTABLES_Operator_H