field.h File Reference

: Description and current value of a field (column) More...

#include "util/decimal.h"
#include "file_desc.h"

Go to the source code of this file.

Classes
class	timestamp_t
class	field_desc_t
struct	field_value_t
union	field_value_t::s_field_value_t

Macros
#define	MAX_LINE_LENGTH   1024

Enumerations
enum	sqltype_t {   SQL_BIT, SQL_SMALLINT, SQL_INT, SQL_FLOAT,   SQL_LONG, SQL_CHAR, SQL_FIXCHAR, SQL_VARCHAR,   SQL_TIME, SQL_NUMERIC, SQL_SNUMERIC }

Detailed Description

: Description and current value of a field (column)

Note

: field_desc_t - the description of a field field_value_t - the value of a field

The description of the field includes type, size, and whether it allows null values. The value of the field is stored in a union. If the type is SQL_TIME or strings, the data is stored in _data and the union contains the pointer to it. The space of _data is allocated at setup time for fixed length fields and at set_value time for variable length fields.

Author

: Ippokratis Pandis, January 2008

Macro Definition Documentation

MAX_LINE_LENGTH

#define MAX_LINE_LENGTH   1024

Enumeration Type Documentation

sqltype_t

enum sqltype_t

Enumerator
SQL_BIT
SQL_SMALLINT
SQL_INT
SQL_FLOAT
SQL_LONG
SQL_CHAR
SQL_FIXCHAR
SQL_VARCHAR
SQL_TIME
SQL_NUMERIC
SQL_SNUMERIC