MySQL 8.0.30
Source Code Documentation
dd::Column_statistics_impl Class Referencefinal

#include <column_statistics_impl.h>

Inheritance diagram for dd::Column_statistics_impl:
[legend]

Public Member Functions

 Column_statistics_impl ()
 
const Object_tableobject_table () const override
 
bool validate () const override
 
bool store_attributes (Raw_record *r) override
 
bool restore_attributes (const Raw_record &r) override
 
void serialize (Sdi_wcontext *wctx, Sdi_writer *w) const override
 Converts *this into json. More...
 
bool deserialize (Sdi_rcontext *rctx, const RJ_Value &val) override
 Re-establishes the state of *this by reading sdi information from the rapidjson DOM subobject provided. More...
 
const String_typeschema_name () const override
 
void set_schema_name (const String_type &schema_name) override
 
const String_typetable_name () const override
 
void set_table_name (const String_type &table_name) override
 
const String_typecolumn_name () const override
 
void set_column_name (const String_type &column_name) override
 
const histograms::Histogramhistogram () const override
 
void set_histogram (const histograms::Histogram *histogram) override
 
Entity_object_implimpl () override
 
const Entity_object_implimpl () const override
 
Object_id id () const override
 The unique dictionary object id. More...
 
bool is_persistent () const override
 Is dictionary object persistent in dictionary tables ? More...
 
const String_typename () const override
 
void set_name (const String_type &name) override
 
void debug_print (String_type &outb) const override
 
- Public Member Functions inherited from dd::Entity_object_impl
 Entity_object_impl ()
 
Object_id id () const override
 The unique dictionary object id. More...
 
void set_id (Object_id id)
 
bool is_persistent () const override
 Is dictionary object persistent in dictionary tables ? More...
 
const String_typename () const override
 
void set_name (const String_type &name) override
 
Object_keycreate_primary_key () const override
 
bool has_new_primary_key () const override
 Indicates that object is guaranteed to have primary key value which doesn't exist in database (e.g. More...
 
Entity_object_implimpl () override
 
const Entity_object_implimpl () const override
 
- Public Member Functions inherited from dd::Weak_object
 Weak_object ()=default
 
 Weak_object (const Weak_object &)=default
 
virtual ~Weak_object ()=default
 
- Public Member Functions inherited from dd::Weak_object_impl_< use_pfs >
 Weak_object_impl_ ()=default
 
 ~Weak_object_impl_ () override=default
 
void * operator new (size_t size, const std::nothrow_t &nt) noexcept
 
void operator delete (void *ptr, const std::nothrow_t &nt) noexcept
 
void * operator new (size_t size) noexcept
 
void operator delete (void *ptr) noexcept
 
virtual bool store (Open_dictionary_tables_ctx *otx)
 Store the DD object into DD table. More...
 
bool drop (Open_dictionary_tables_ctx *otx) const
 Drop the DD object from DD table. More...
 
virtual bool restore_children (Open_dictionary_tables_ctx *)
 
virtual bool store_children (Open_dictionary_tables_ctx *)
 
virtual bool drop_children (Open_dictionary_tables_ctx *) const
 
- Public Member Functions inherited from dd::Column_statistics
bool update_id_key (Id_key *key) const
 
bool update_name_key (Name_key *key) const
 
bool update_aux_key (Aux_key *) const
 
 ~Column_statistics () override=default
 
String_type create_name () const
 
void create_mdl_key (MDL_key *key) const
 

Static Public Member Functions

static void register_tables (Open_dictionary_tables_ctx *otx)
 
- Static Public Member Functions inherited from dd::Column_statistics
static bool update_id_key (Id_key *key, Object_id id)
 
static bool update_name_key (Name_key *key, const String_type &name)
 
static String_type create_name (const String_type &schema_name, const String_type &table_name, const String_type &column_name)
 
static void create_mdl_key (const String_type &schema_name, const String_type &table_name, const String_type &column_name, MDL_key *key)
 

Private Member Functions

 Column_statistics_impl (const Column_statistics_impl &column_statistics)
 
Column_statisticsclone () const override
 
Column_statisticsclone_dropped_object_placeholder () const override
 Allocate a new object which can serve as a placeholder for the original object in the Dictionary_client's dropped registry. More...
 

Private Attributes

String_type m_schema_name
 
String_type m_table_name
 
String_type m_column_name
 
const histograms::Histogramm_histogram
 

Additional Inherited Members

- Public Types inherited from dd::Column_statistics
typedef Column_statistics_impl Impl
 
typedef Column_statistics Cache_partition
 
typedef tables::Column_statistics DD_table
 
typedef Primary_id_key Id_key
 
typedef Item_name_key Name_key
 
typedef Void_key Aux_key
 
- Protected Member Functions inherited from dd::Entity_object_impl
void set_primary_key_value (const Raw_new_record &r) override
 
void fix_has_new_primary_key () override
 
void restore_id (const Raw_record &r, int field_idx)
 
void restore_name (const Raw_record &r, int field_idx)
 
bool store_id (Raw_record *r, int field_idx)
 
bool store_name (Raw_record *r, int field_idx)
 
bool store_name (Raw_record *r, int field_idx, bool is_null)
 
void serialize (Sdi_wcontext *wctx, Sdi_writer *w) const
 
bool deserialize (Sdi_rcontext *rctx, const RJ_Value &val)
 
 Entity_object_impl (const Entity_object_impl &src)
 
- Protected Member Functions inherited from dd::Weak_object_impl_< use_pfs >
bool check_parent_consistency (Entity_object_impl *parent, Object_id parent_id) const
 
- Protected Attributes inherited from dd::Column_statistics
MEM_ROOT m_mem_root
 MEM_ROOT on which the histogram data is allocated. More...
 

Constructor & Destructor Documentation

◆ Column_statistics_impl() [1/2]

dd::Column_statistics_impl::Column_statistics_impl ( )
inline

◆ Column_statistics_impl() [2/2]

dd::Column_statistics_impl::Column_statistics_impl ( const Column_statistics_impl column_statistics)
inlineprivate

Member Function Documentation

◆ clone()

Column_statistics * dd::Column_statistics_impl::clone ( ) const
inlineoverrideprivatevirtual

Implements dd::Column_statistics.

◆ clone_dropped_object_placeholder()

Column_statistics * dd::Column_statistics_impl::clone_dropped_object_placeholder ( ) const
inlineoverrideprivatevirtual

Allocate a new object which can serve as a placeholder for the original object in the Dictionary_client's dropped registry.

Such object has the same keys as the original but has no other info and as result occupies less memory.

Implements dd::Column_statistics.

◆ column_name()

const String_type & dd::Column_statistics_impl::column_name ( ) const
inlineoverridevirtual

Implements dd::Column_statistics.

◆ debug_print()

void dd::Column_statistics_impl::debug_print ( String_type outb) const
inlineoverridevirtual

Implements dd::Weak_object.

◆ deserialize()

bool dd::Column_statistics_impl::deserialize ( Sdi_rcontext rctx,
const RJ_Value val 
)
overridevirtual

Re-establishes the state of *this by reading sdi information from the rapidjson DOM subobject provided.

Cross-references encountered within this object are tracked in sdictx, so that they can be updated when the entire object graph has been established.

Parameters
rctxstores book-keeping information for the deserialization process
valsubobject of rapidjson DOM containing json representation of this object

Implements dd::Column_statistics.

◆ histogram()

const histograms::Histogram * dd::Column_statistics_impl::histogram ( ) const
inlineoverridevirtual

Implements dd::Column_statistics.

◆ id()

Object_id dd::Column_statistics_impl::id ( ) const
inlineoverridevirtual

The unique dictionary object id.

Implements dd::Entity_object.

◆ impl() [1/2]

const Entity_object_impl * dd::Column_statistics_impl::impl ( ) const
inlineoverridevirtual

Implements dd::Entity_object.

◆ impl() [2/2]

Entity_object_impl * dd::Column_statistics_impl::impl ( )
inlineoverridevirtual

Implements dd::Entity_object.

◆ is_persistent()

bool dd::Column_statistics_impl::is_persistent ( ) const
inlineoverridevirtual

Is dictionary object persistent in dictionary tables ?

Implements dd::Entity_object.

◆ name()

const String_type & dd::Column_statistics_impl::name ( ) const
inlineoverridevirtual

Implements dd::Entity_object.

◆ object_table()

const Object_table & dd::Column_statistics_impl::object_table ( ) const
overridevirtual

◆ register_tables()

void dd::Column_statistics_impl::register_tables ( Open_dictionary_tables_ctx otx)
static

◆ restore_attributes()

bool dd::Column_statistics_impl::restore_attributes ( const Raw_record r)
overridevirtual

◆ schema_name()

const String_type & dd::Column_statistics_impl::schema_name ( ) const
inlineoverridevirtual

Implements dd::Column_statistics.

◆ serialize()

void dd::Column_statistics_impl::serialize ( Sdi_wcontext wctx,
Sdi_writer w 
) const
overridevirtual

Converts *this into json.

Converts all member variables that are to be included in the sdi into json by transforming them appropriately and passing them to the rapidjson writer provided.

Parameters
wctxopaque context for data needed by serialization
wrapidjson writer which will perform conversion to json

Implements dd::Column_statistics.

◆ set_column_name()

void dd::Column_statistics_impl::set_column_name ( const String_type column_name)
inlineoverridevirtual

Implements dd::Column_statistics.

◆ set_histogram()

void dd::Column_statistics_impl::set_histogram ( const histograms::Histogram histogram)
inlineoverridevirtual

Implements dd::Column_statistics.

◆ set_name()

void dd::Column_statistics_impl::set_name ( const String_type name)
inlineoverridevirtual

Implements dd::Entity_object.

◆ set_schema_name()

void dd::Column_statistics_impl::set_schema_name ( const String_type schema_name)
inlineoverridevirtual

Implements dd::Column_statistics.

◆ set_table_name()

void dd::Column_statistics_impl::set_table_name ( const String_type table_name)
inlineoverridevirtual

Implements dd::Column_statistics.

◆ store_attributes()

bool dd::Column_statistics_impl::store_attributes ( Raw_record r)
overridevirtual

◆ table_name()

const String_type & dd::Column_statistics_impl::table_name ( ) const
inlineoverridevirtual

Implements dd::Column_statistics.

◆ validate()

bool dd::Column_statistics_impl::validate ( ) const
inlineoverridevirtual

Member Data Documentation

◆ m_column_name

String_type dd::Column_statistics_impl::m_column_name
private

◆ m_histogram

const histograms::Histogram* dd::Column_statistics_impl::m_histogram
private

◆ m_schema_name

String_type dd::Column_statistics_impl::m_schema_name
private

◆ m_table_name

String_type dd::Column_statistics_impl::m_table_name
private

The documentation for this class was generated from the following files: