mariadb_dyncol_unpack - extracts keys and values of all columns

Name  Synopsis  Description  Parameter  Return value  Notes  See also 

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Name

mariadb_dyncol_unpack − extracts keys and values of all columns

Synopsis

#include <mariadb_dyncol.h>


enum enum_dyncol_func_result
mariadb_dyncol_unpack(DYNAMIC_COLUMN *str,
                      uint *column_count,
                      MYSQL_LEX_STRING **column_keys,
                      DYNAMIC_COLUMN_VALUE **values);

Description

The mariadb_dyncol_unpack() function extracts all keys and values of a dynamic column.

Parameter

	•		str − Pointer to a DYNAMIC_COLUMN structure
	•		column count − Pointer to an unsigned integer which will receive the number of columns
	•		column_keys − Pointer of an array of MYSQL_LEX_STRING structures, which will contain the column keys
	•		values − Pointer of an array of DYNAMIC_COLUMN_VALUE structures, which will contain the values.

Return value

Returns ER_DYNCOL_OK on success, otherwise an error.

Notes

•

The column_keys and values arrays will be allocated by mariadb_dyncol_unpack() and must be freed by application.

See also

	•		mariadb_dyncol_get(3)
	•		mariadb_dyncol_list(3)

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