SQL data field and tuple. More...

#include "univ.i"
#include "data0type.h"
#include "data0types.h"
#include "dict0types.h"
#include "mem0mem.h"
#include "trx0types.h"
#include "ut0bitset.h"
#include <ostream>
#include "data0data.ic"

Classes
struct	multi_value_data
	Structure to hold number of multiple values. More...

class	Multi_value_logger
	Class to log the multi-value data and read it from the log. More...

struct	dfield_t
	Structure for an SQL data field. More...

struct	dtuple_t
	Structure for an SQL data tuple of fields (logical record) More...

struct	big_rec_field_t
	A slot for a field in a big rec vector. More...

struct	big_rec_t
	Storage format for overflow data in a big record, that is, a clustered index record which needs external storage of data fields. More...

Macros
#define	DTUPLE_EST_ALLOC(n_fields) (sizeof(dtuple_t) + (n_fields) * sizeof(dfield_t))

Functions
static dtype_t *	dfield_get_type (const dfield_t *field)
	Gets pointer to the type struct of SQL data field. More...

static void *	dfield_get_data (const dfield_t *field)
	Gets pointer to the data in a field. More...

static void	dfield_set_type (dfield_t field, const dtype_t type)
	Sets the type struct of SQL data field. More...

static uint32_t	dfield_get_len (const dfield_t *field)
	Gets length of field data. More...

static void	dfield_set_len (dfield_t *field, ulint len)
	Sets length in a field. More...

static ulint	dfield_is_null (const dfield_t *field)
	Determines if a field is SQL NULL. More...

static bool	dfield_is_ext (const dfield_t *field)
	Determines if a field is externally stored. More...

static void	dfield_set_ext (dfield_t *field)
	Sets the "external storage" flag. More...

static spatial_status_t	dfield_get_spatial_status (const dfield_t *field)
	Gets spatial status for "external storage". More...

static void	dfield_set_spatial_status (dfield_t *field, spatial_status_t spatial_status)
	Sets spatial status for "external storage". More...

static void	dfield_set_data (dfield_t field, const void data, ulint len)
	Sets pointer to the data and length in a field. More...

static void	dfield_write_mbr (dfield_t field, const double mbr)
	Sets pointer to the data and length in a field. More...

static void	dfield_set_null (dfield_t *field)
	Sets a data field to SQL NULL. More...

static void	data_write_sql_null (byte *data, ulint len)
	Writes an SQL null field full of zeros. More...

static void	dfield_copy_data (dfield_t field1, const dfield_t field2)
	Copies the data and len fields. More...

static void	dfield_copy (dfield_t field1, const dfield_t field2)
	Copies a data field to another. More...

static void	dfield_dup (dfield_t field, mem_heap_t heap)
	Copies the data pointed to by a data field. More...

static void	dfield_multi_value_dup (dfield_t field, mem_heap_t heap)
	Copies the data pointed to by a data field. More...

static bool	dfield_is_multi_value (const dfield_t *field)
	Determine if a field is of multi-value type. More...

bool	dfield_datas_are_binary_equal (const dfield_t field1, const dfield_t field2, ulint len)
	Tests if two data fields are equal. More...

static bool	dfield_data_is_binary_equal (const dfield_t field, ulint len, const byte data)
	Tests if dfield data length and content is equal to the given. More...

static ulint	dtuple_get_n_fields (const dtuple_t *tuple)
	Gets number of fields in a data tuple. More...

static ulint	dtuple_get_n_v_fields (const dtuple_t *tuple)
	Gets number of virtual fields in a data tuple. More...

static dfield_t *	dtuple_get_nth_field (const dtuple_t *tuple, ulint n)
	Gets nth field of a tuple. More...

static dfield_t *	dtuple_get_nth_v_field (const dtuple_t *tuple, ulint n)
	Gets nth virtual field of a tuple. More...

static ulint	dtuple_get_info_bits (const dtuple_t *tuple)
	Gets info bits in a data tuple. More...

static void	dtuple_set_info_bits (dtuple_t *tuple, ulint info_bits)
	Sets info bits in a data tuple. More...

static ulint	dtuple_get_n_fields_cmp (const dtuple_t *tuple)
	Gets number of fields used in record comparisons. More...

static void	dtuple_set_n_fields_cmp (dtuple_t *tuple, ulint n_fields_cmp)
	Gets number of fields used in record comparisons. More...

static dtuple_t *	dtuple_create_from_mem (void *buf, ulint buf_size, ulint n_fields, ulint n_v_fields)
	Creates a data tuple from an already allocated chunk of memory. More...

static dtuple_t *	dtuple_create (mem_heap_t *heap, ulint n_fields)
	Creates a data tuple to a memory heap. More...

static void	dtuple_init_v_fld (const dtuple_t *vrow)
	Initialize the virtual field data in a dtuple_t. More...

static void	dtuple_dup_v_fld (const dtuple_t vrow, mem_heap_t heap)
	Duplicate the virtual field data in a dtuple_t. More...

static dtuple_t *	dtuple_create_with_vcol (mem_heap_t *heap, ulint n_fields, ulint n_v_fields)
	Creates a data tuple with possible virtual columns to a memory heap. More...

void	dtuple_set_n_fields (dtuple_t *tuple, ulint n_fields)
	Sets number of fields used in a tuple. More...

static void	dtuple_copy_v_fields (dtuple_t d_tuple, const dtuple_t s_tuple)
	Copies a data tuple's virtual fields to another. More...

static dtuple_t *	dtuple_copy (const dtuple_t tuple, mem_heap_t heap)
	Copies a data tuple to another. More...

static ulint	dtuple_get_data_size (const dtuple_t *tuple, ulint comp)
	The following function returns the sum of data lengths of a tuple. More...

bool	dtuple_coll_eq (const dtuple_t tuple1, const dtuple_t tuple2)
	Compare two data tuples. More...

static uint64_t	dtuple_hash (const dtuple_t *tuple, ulint n_fields, ulint n_bytes, uint64_t hash_value)
	Compute a hash value of a prefix of an index record. More...

static void	dtuple_set_types_binary (dtuple_t *tuple, ulint n)
	Sets types of fields binary in a tuple. More...

static bool	dtuple_contains_null (const dtuple_t *tuple)
	Checks if a dtuple contains an SQL null value. More...

bool	dfield_check_typed (const dfield_t *field)
	Checks that a data field is typed. More...

bool	dtuple_check_typed (const dtuple_t *tuple)
	Checks that a data tuple is typed. More...

bool	dtuple_validate (const dtuple_t *tuple)
	Validates the consistency of a tuple which must be complete, i.e, all fields must have been set. More...

void	dfield_print_also_hex (const dfield_t *dfield)
	Pretty prints a dfield value according to its data type. More...

void	dtuple_print (FILE f, const dtuple_t tuple)
	The following function prints the contents of a tuple. More...

void	dfield_print (std::ostream &o, const dfield_t *field, ulint n)
	Print the contents of a tuple. More...

void	dtuple_print (std::ostream &o, const dtuple_t *tuple)
	Print the contents of a tuple. More...

std::ostream &	operator<< (std::ostream &o, const dtuple_t &tuple)
	Print the contents of a tuple. More...

big_rec_t *	dtuple_convert_big_rec (dict_index_t index, upd_t upd, dtuple_t *entry)
	Moves parts of long fields in entry to the big record vector so that the size of tuple drops below the maximum record size allowed in the database. More...

void	dtuple_convert_back_big_rec (dtuple_t entry, big_rec_t vector)
	Puts back to entry the data stored in vector. More...

static void	dtuple_big_rec_free (big_rec_t *vector)
	Frees the memory in a big rec vector. More...

bool	is_multi_value_clust_and_sec_equal (const byte clust_field, uint64_t clust_len, const byte sec_field, uint64_t sec_len, const dict_col_t *col)
	Compare a multi-value clustered index field with a secondary index field, to see if they are equal. More...

std::ostream &	operator<< (std::ostream &out, const dfield_t &obj)
	Overloading the global output operator to easily print the given dfield_t object into the given output stream. More...

std::ostream &	operator<< (std::ostream &out, const big_rec_field_t &obj)
	Overloading the global output operator to easily print the given big_rec_field_t object into the given output stream. More...

std::ostream &	operator<< (std::ostream &out, const big_rec_t &obj)
	Overloading the global output operator to easily print the given big_rec_t object into the given output stream. More...

Variables
constexpr uint32_t	DATA_TUPLE_MAGIC_N = 65478679
	Value of dtuple_t::magic_n. More...

Detailed Description

SQL data field and tuple.

Created 5/30/1994 Heikki Tuuri

Macro Definition Documentation

◆ DTUPLE_EST_ALLOC

#define DTUPLE_EST_ALLOC ( n_fields ) (sizeof(dtuple_t) + (n_fields) * sizeof(dfield_t))

Function Documentation

◆ data_write_sql_null()

static void data_write_sql_null	(	byte *	data,
		ulint	len
	)

inlinestatic

Writes an SQL null field full of zeros.

Parameters

[in]	data	pointer to a buffer of size len
[in]	len	SQL null size in bytes

◆ dfield_check_typed()

bool dfield_check_typed ( const dfield_t * field )

Checks that a data field is typed.

Asserts an error if not.

Returns: true if ok in: data field

◆ dfield_copy()

static void dfield_copy	(	dfield_t *	field1,
		const dfield_t *	field2
	)

inlinestatic

Copies a data field to another.

Parameters

[out]	field1	field to copy to
[in]	field2	field to copy from

◆ dfield_copy_data()

static void dfield_copy_data	(	dfield_t *	field1,
		const dfield_t *	field2
	)

inlinestatic

Copies the data and len fields.

Parameters

[out]	field1	field to copy to
[in]	field2	field to copy from

◆ dfield_data_is_binary_equal()

static bool dfield_data_is_binary_equal	(	const dfield_t *	field,
		ulint	len,
		const byte *	data
	)

inlinestatic

Tests if dfield data length and content is equal to the given.

Parameters

[in]	field	Field
[in]	len	Data length or UNIV_SQL_NULL
[in]	data	Data

Returns: true if equal

◆ dfield_datas_are_binary_equal()

bool dfield_datas_are_binary_equal	(	const dfield_t *	field1,
		const dfield_t *	field2,
		ulint	len
	)

inline

Tests if two data fields are equal.

If len==0, tests the data length and content for equality. If len>0, tests the first len bytes of the content for equality.

Parameters

[in]	field1	first field to compare
[in]	field2	second field to compare
[in]	len	maximum prefix to compare, or 0 to compare the whole field length. This works only if !multi_val

Returns: true if both fields are NULL or if they are equal

◆ dfield_dup()

static void dfield_dup	(	dfield_t *	field,
		mem_heap_t *	heap
	)

inlinestatic

Copies the data pointed to by a data field.

Parameters

[in,out]	field	data field
[in]	heap	memory heap where allocated

◆ dfield_get_data()

static void * dfield_get_data ( const dfield_t * field )

inlinestatic

Gets pointer to the data in a field.

Returns: pointer to data in: field

◆ dfield_get_len()

static uint32_t dfield_get_len ( const dfield_t * field )

inlinestatic

Gets length of field data.

Returns: length of data; UNIV_SQL_NULL if SQL null data in: field

◆ dfield_get_spatial_status()

static spatial_status_t dfield_get_spatial_status ( const dfield_t * field )

inlinestatic

Gets spatial status for "external storage".

Parameters

[in,out] field field

◆ dfield_get_type()

static dtype_t * dfield_get_type ( const dfield_t * field )

inlinestatic

Gets pointer to the type struct of SQL data field.

Returns: pointer to the type struct in: SQL data field

◆ dfield_is_ext()

static bool dfield_is_ext ( const dfield_t * field )

inlinestatic

Determines if a field is externally stored.

Returns: nonzero if externally stored in: field

◆ dfield_is_multi_value()

static bool dfield_is_multi_value ( const dfield_t * field )

inlinestatic

Determine if a field is of multi-value type.

Parameters

[in] field data field

Returns: true if multi-value type field, otherwise false

◆ dfield_is_null()

static ulint dfield_is_null ( const dfield_t * field )

inlinestatic

Determines if a field is SQL NULL.

Returns: nonzero if SQL null data in: field

◆ dfield_multi_value_dup()

static void dfield_multi_value_dup	(	dfield_t *	field,
		mem_heap_t *	heap
	)

inlinestatic

Copies the data pointed to by a data field.

This function works for multi-value fields only.

Parameters

[in,out]	field	data field
[in]	heap	memory heap where allocated

◆ dfield_print()

void dfield_print	(	std::ostream &	o,
		const dfield_t *	field,
		ulint	n
	)

Print the contents of a tuple.

Parameters

[out]	o	output stream
[in]	field	array of data fields
[in]	n	number of data fields

◆ dfield_print_also_hex()

void dfield_print_also_hex ( const dfield_t * dfield )

Pretty prints a dfield value according to its data type.

Also the hex string is printed if a string contains non-printable characters. in: dfield

◆ dfield_set_data()

static void dfield_set_data	(	dfield_t *	field,
		const void *	data,
		ulint	len
	)

inlinestatic

Sets pointer to the data and length in a field.

Parameters

[in]	field	field
[in]	data	data
[in]	len	length or UNIV_SQL_NULL

◆ dfield_set_ext()

static void dfield_set_ext ( dfield_t * field )

inlinestatic

Sets the "external storage" flag.

in/out: field

◆ dfield_set_len()

static void dfield_set_len	(	dfield_t *	field,
		ulint	len
	)

inlinestatic

Sets length in a field.

Parameters

[in]	field	field
[in]	len	length or UNIV_SQL_NULL

◆ dfield_set_null()

static void dfield_set_null ( dfield_t * field )

inlinestatic

Sets a data field to SQL NULL.

in/out: field

◆ dfield_set_spatial_status()

static void dfield_set_spatial_status	(	dfield_t *	field,
		spatial_status_t	spatial_status
	)

inlinestatic

Sets spatial status for "external storage".

Parameters

[in,out]	field	field
[in]	spatial_status	spatial status

◆ dfield_set_type()

static void dfield_set_type	(	dfield_t *	field,
		const dtype_t *	type
	)

inlinestatic

Sets the type struct of SQL data field.

Parameters

[in]	field	SQL data field
[in]	type	pointer to data type struct

◆ dfield_write_mbr()

static void dfield_write_mbr	(	dfield_t *	field,
		const double *	mbr
	)

inlinestatic

Sets pointer to the data and length in a field.

Parameters

[in]	field	field
[in]	mbr	data

◆ dtuple_big_rec_free()

static void dtuple_big_rec_free ( big_rec_t * vector )

inlinestatic

Frees the memory in a big rec vector.

in, own: big rec vector; it is freed in this function

◆ dtuple_check_typed()

bool dtuple_check_typed ( const dtuple_t * tuple )

Checks that a data tuple is typed.

Asserts an error if not.

Returns: true if ok in: tuple

◆ dtuple_coll_eq()

bool dtuple_coll_eq	(	const dtuple_t *	tuple1,
		const dtuple_t *	tuple2
	)

Compare two data tuples.

Parameters

[in]	tuple1	first data tuple
[in]	tuple2	second data tuple

Returns: whether tuple1==tuple2

◆ dtuple_contains_null()

static bool dtuple_contains_null ( const dtuple_t * tuple )

inlinestatic

Checks if a dtuple contains an SQL null value.

Returns: true if some field is SQL null in: dtuple

◆ dtuple_convert_back_big_rec()

void dtuple_convert_back_big_rec	(	dtuple_t *	entry,
		big_rec_t *	vector
	)

Puts back to entry the data stored in vector.

Note that to ensure the fields in entry can accommodate the data, vector must have been created from entry with dtuple_convert_big_rec.

Parameters

[in]	entry	Entry whose data was put to vector.
[in]	vector	Big rec vector; it is freed in this function

◆ dtuple_convert_big_rec()

big_rec_t * dtuple_convert_big_rec	(	dict_index_t *	index,
		upd_t *	upd,
		dtuple_t *	entry
	)

Moves parts of long fields in entry to the big record vector so that the size of tuple drops below the maximum record size allowed in the database.

Moves data only from those fields which are not necessary to determine uniquely the insertion place of the tuple in the index.

Parameters

[in,out]	index	Index that owns the record.
[in,out]	upd	Update vector.
[in,out]	entry	Index entry.

Returns: own: created big record vector, NULL if we are not able to shorten the entry enough, i.e., if there are too many fixed-length or short fields in entry or the index is clustered

◆ dtuple_copy()

static dtuple_t * dtuple_copy	(	const dtuple_t *	tuple,
		mem_heap_t *	heap
	)

inlinestatic

Copies a data tuple to another.

This is a shallow copy; if a deep copy is desired, dfield_dup() will have to be invoked on each field.

Returns: own: copy of tuple

Parameters

tuple	in: tuple to copy from
heap	in: memory heap where the tuple is created

◆ dtuple_copy_v_fields()

static void dtuple_copy_v_fields	(	dtuple_t *	d_tuple,
		const dtuple_t *	s_tuple
	)

inlinestatic

Copies a data tuple's virtual fields to another.

This is a shallow copy;

Parameters

[in,out]	d_tuple	destination tuple
[in]	s_tuple	source tuple

◆ dtuple_create()

static dtuple_t * dtuple_create	(	mem_heap_t *	heap,
		ulint	n_fields
	)

inlinestatic

Creates a data tuple to a memory heap.

The default value for number of fields used in record comparisons for this tuple is n_fields.

Returns: own: created tuple

Parameters

heap	in: memory heap where the tuple is created, DTUPLE_EST_ALLOC(n_fields) bytes will be allocated from this heap
n_fields	in: number of fields

◆ dtuple_create_from_mem()

static dtuple_t * dtuple_create_from_mem	(	void *	buf,
		ulint	buf_size,
		ulint	n_fields,
		ulint	n_v_fields
	)

inlinestatic

Creates a data tuple from an already allocated chunk of memory.

The size of the chunk must be at least DTUPLE_EST_ALLOC(n_fields). The default value for number of fields used in record comparisons for this tuple is n_fields.

Parameters

[in,out]	buf	buffer to use
[in]	buf_size	buffer size
[in]	n_fields	number of field
[in]	n_v_fields	number of fields on virtual columns

Returns: created tuple (inside buf)

◆ dtuple_create_with_vcol()

static dtuple_t * dtuple_create_with_vcol	(	mem_heap_t *	heap,
		ulint	n_fields,
		ulint	n_v_fields
	)

inlinestatic

Creates a data tuple with possible virtual columns to a memory heap.

Parameters

[in]	heap	memory heap where the tuple is created
[in]	n_fields	number of fields
[in]	n_v_fields	number of fields on virtual col

Returns: own: created tuple

◆ dtuple_dup_v_fld()

static void dtuple_dup_v_fld	(	const dtuple_t *	vrow,
		mem_heap_t *	heap
	)

inlinestatic

Duplicate the virtual field data in a dtuple_t.

Parameters

[in,out]	vrow	dtuple contains the virtual fields
[in]	heap	heap memory to use

◆ dtuple_get_data_size()

static ulint dtuple_get_data_size	(	const dtuple_t *	tuple,
		ulint	comp
	)

inlinestatic

The following function returns the sum of data lengths of a tuple.

The space occupied by the field structs or the tuple struct is not counted.

Parameters

[in]	tuple	typed data tuple
[in]	comp	nonzero=ROW_FORMAT=COMPACT

Returns: sum of data lens

◆ dtuple_get_info_bits()

static ulint dtuple_get_info_bits ( const dtuple_t * tuple )

inlinestatic

Gets info bits in a data tuple.

Returns: info bits in: tuple

◆ dtuple_get_n_fields()

static ulint dtuple_get_n_fields ( const dtuple_t * tuple )

inlinestatic

Gets number of fields in a data tuple.

Returns: number of fields in: tuple

◆ dtuple_get_n_fields_cmp()

static ulint dtuple_get_n_fields_cmp ( const dtuple_t * tuple )

inlinestatic

Gets number of fields used in record comparisons.

Returns: number of fields used in comparisons in rem0cmp.* in: tuple

◆ dtuple_get_n_v_fields()

static ulint dtuple_get_n_v_fields ( const dtuple_t * tuple )

inlinestatic

Gets number of virtual fields in a data tuple.

Parameters

[in] tuple dtuple to check

Returns: number of fields

◆ dtuple_get_nth_field()

static dfield_t * dtuple_get_nth_field	(	const dtuple_t *	tuple,
		ulint	n
	)

inlinestatic

Gets nth field of a tuple.

Parameters

[in]	tuple	tuple
[in]	n	index of field

Returns: nth field

◆ dtuple_get_nth_v_field()

static dfield_t * dtuple_get_nth_v_field	(	const dtuple_t *	tuple,
		ulint	n
	)

inlinestatic

Gets nth virtual field of a tuple.

Parameters

[in]	tuple	tuple
[in]	n	the nth field to get

Returns: nth field

◆ dtuple_hash()

static uint64_t dtuple_hash	(	const dtuple_t *	tuple,
		ulint	n_fields,
		ulint	n_bytes,
		uint64_t	hash_value
	)

inlinestatic

Compute a hash value of a prefix of an index record.

Parameters

[in]	tuple	index record
[in]	n_fields	number of fields to include
[in]	n_bytes	number of bytes to hash in the last field
[in]	hash_value	hash value of the index identifier

Returns: the hashed value

◆ dtuple_init_v_fld()

static void dtuple_init_v_fld ( const dtuple_t * vrow )

inlinestatic

Initialize the virtual field data in a dtuple_t.

Parameters

[in,out] vrow dtuple contains the virtual fields

◆ dtuple_print() [1/2]

void dtuple_print	(	FILE *	f,
		const dtuple_t *	tuple
	)

The following function prints the contents of a tuple.

Parameters

[in,out]	f	Output stream.
[in]	tuple	Tuple to print.

◆ dtuple_print() [2/2]

void dtuple_print	(	std::ostream &	o,
		const dtuple_t *	tuple
	)

Print the contents of a tuple.

Parameters

[out]	o	output stream
[in]	tuple	data tuple

◆ dtuple_set_info_bits()

static void dtuple_set_info_bits	(	dtuple_t *	tuple,
		ulint	info_bits
	)

inlinestatic

Sets info bits in a data tuple.

Parameters

[in]	tuple	tuple
[in]	info_bits	info bits

◆ dtuple_set_n_fields()

void dtuple_set_n_fields	(	dtuple_t *	tuple,
		ulint	n_fields
	)

Sets number of fields used in a tuple.

Normally this is set in dtuple_create, but if you want later to set it smaller, you can use this.

Parameters

[in]	tuple	Tuple.
[in]	n_fields	Number of fields.

◆ dtuple_set_n_fields_cmp()

static void dtuple_set_n_fields_cmp	(	dtuple_t *	tuple,
		ulint	n_fields_cmp
	)

inlinestatic

Gets number of fields used in record comparisons.

Parameters

[in]	tuple	tuple
[in]	n_fields_cmp	number of fields used in comparisons in rem0cmp

◆ dtuple_set_types_binary()

static void dtuple_set_types_binary	(	dtuple_t *	tuple,
		ulint	n
	)

inlinestatic

Sets types of fields binary in a tuple.

Parameters

[in]	tuple	data tuple
[in]	n	number of fields to set

◆ dtuple_validate()

bool dtuple_validate ( const dtuple_t * tuple )

Validates the consistency of a tuple which must be complete, i.e, all fields must have been set.

Returns: true if ok in: tuple

◆ is_multi_value_clust_and_sec_equal()

bool is_multi_value_clust_and_sec_equal	(	const byte *	clust_field,
		uint64_t	clust_len,
		const byte *	sec_field,
		uint64_t	sec_len,
		const dict_col_t *	col
	)

Compare a multi-value clustered index field with a secondary index field, to see if they are equal.

If the clustered index field is the array, then equal means it contains the secondary index field

Parameters

[in]	clust_field	clustered index field
[in]	clust_len	clustered index field length
[in]	sec_field	secondary index field
[in]	sec_len	secondary index field length
[in]	col	the column tied to this field

Returns: true if they are equal, otherwise false

◆ operator<<() [1/4]

std::ostream & operator<<	(	std::ostream &	o,
		const dtuple_t &	tuple
	)

inline

Print the contents of a tuple.

Parameters

[out]	o	output stream
[in]	tuple	data tuple

◆ operator<<() [2/4]

std::ostream & operator<<	(	std::ostream &	out,
		const big_rec_field_t &	obj
	)

inline

Overloading the global output operator to easily print the given big_rec_field_t object into the given output stream.

Parameters

[in]	out	the output stream
[in]	obj	the given object to print.

Returns: the output stream.

◆ operator<<() [3/4]

std::ostream & operator<<	(	std::ostream &	out,
		const big_rec_t &	obj
	)

inline

Overloading the global output operator to easily print the given big_rec_t object into the given output stream.

Parameters

[in]	out	the output stream
[in]	obj	the given object to print.

Returns: the output stream.

◆ operator<<() [4/4]

std::ostream & operator<<	(	std::ostream &	out,
		const dfield_t &	obj
	)

inline

Overloading the global output operator to easily print the given dfield_t object into the given output stream.

Parameters

[in]	out	the output stream
[in]	obj	the given object to print.

Returns: the output stream.

Variable Documentation

◆ DATA_TUPLE_MAGIC_N

constexpr uint32_t DATA_TUPLE_MAGIC_N = 65478679

constexpr

Value of dtuple_t::magic_n.

Classes

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ DTUPLE_EST_ALLOC

Function Documentation

◆ data_write_sql_null()

◆ dfield_check_typed()

◆ dfield_copy()

◆ dfield_copy_data()

◆ dfield_data_is_binary_equal()

◆ dfield_datas_are_binary_equal()

◆ dfield_dup()

◆ dfield_get_data()

◆ dfield_get_len()

◆ dfield_get_spatial_status()

◆ dfield_get_type()

◆ dfield_is_ext()

◆ dfield_is_multi_value()

◆ dfield_is_null()

◆ dfield_multi_value_dup()

◆ dfield_print()

◆ dfield_print_also_hex()

◆ dfield_set_data()

◆ dfield_set_ext()

◆ dfield_set_len()

◆ dfield_set_null()

◆ dfield_set_spatial_status()

◆ dfield_set_type()

◆ dfield_write_mbr()

◆ dtuple_big_rec_free()

◆ dtuple_check_typed()

◆ dtuple_coll_eq()

◆ dtuple_contains_null()

◆ dtuple_convert_back_big_rec()

◆ dtuple_convert_big_rec()

◆ dtuple_copy()

◆ dtuple_copy_v_fields()

◆ dtuple_create()

◆ dtuple_create_from_mem()

◆ dtuple_create_with_vcol()

◆ dtuple_dup_v_fld()

◆ dtuple_get_data_size()

◆ dtuple_get_info_bits()

◆ dtuple_get_n_fields()

◆ dtuple_get_n_fields_cmp()

◆ dtuple_get_n_v_fields()

◆ dtuple_get_nth_field()

◆ dtuple_get_nth_v_field()

◆ dtuple_hash()

◆ dtuple_init_v_fld()

◆ dtuple_print() [1/2]

◆ dtuple_print() [2/2]

◆ dtuple_set_info_bits()

◆ dtuple_set_n_fields()

◆ dtuple_set_n_fields_cmp()

◆ dtuple_set_types_binary()

◆ dtuple_validate()

◆ is_multi_value_clust_and_sec_equal()

◆ operator<<() [1/4]

◆ operator<<() [2/4]

◆ operator<<() [3/4]

◆ operator<<() [4/4]

Variable Documentation

◆ DATA_TUPLE_MAGIC_N