Boost C++ Libraries

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This is an older version of Boost and was released in 2024. The current version is 1.89.0.

column_type

column_type

Represents the database type of a MySQL column.

Synopsis

Defined in header <boost/mysql/column_type.hpp>

enum column_type

Values

Name	Description
`tinyint`	`TINYINT` (signed and unsigned).
`smallint`	`SMALLINT` (signed and unsigned).
`mediumint`	`MEDIUMINT` (signed and unsigned).
`int_`	`INT` (signed and unsigned).
`bigint`	`BIGINT` (signed and unsigned).
`float_`	`FLOAT` (warning: FLOAT(p) where p >= 24 creates a DOUBLE column).
`double_`	`DOUBLE`
`decimal`	`DECIMAL`
`bit`	`BIT`
`year`	`YEAR`
`time`	`TIME`
`date`	`DATE`
`datetime`	`DATETIME`
`timestamp`	`TIMESTAMP`
`char_`	`CHAR` (any length)
`varchar`	`VARCHAR` (any length)
`binary`	`BINARY` (any length)
`varbinary`	`VARBINARY` (any length)
`text`	`TEXT` types (`TINYTEXT`, `MEDIUMTEXT`, `TEXT` and `LONGTEXT`)
`blob`	`BLOB` types (`TINYBLOB`, `MEDIUMBLOB`, `BLOB` and `LONGBLOB`)
`enum_`	`ENUM`
`set`	`SET`
`json`	`JSON`
`geometry`	`GEOMETRY`
`unknown`	None of the known types; maybe a new MySQL type we have no knowledge of.

Description

This represents a database type, as opposed to field_kind, which represents a C++ type.

Unless otherwise noted, the names in this enumeration directly correspond to the names of the types you would use in a CREATE TABLE statement to create a column of this type (e.g. VARCHAR corresponds to column_type::varchar).