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.TH "mariadb_dyncol_unpack" "3" "" "Version 3.4" "MariaDB Connector/C"
.SS Name
mariadb_dyncol_unpack \- extracts keys and values of all columns
.SS Synopsis
.IP
.EX
#include \f[B]<mariadb_dyncol.h>\f[R]

\f[B]enum\f[R] enum_dyncol_func_result
mariadb_dyncol_unpack(DYNAMIC_COLUMN *str,
                      uint *column_count,
                      MYSQL_LEX_STRING **column_keys,
                      DYNAMIC_COLUMN_VALUE **values);
.EE
.SS Description
The \f[CR]mariadb_dyncol_unpack()\f[R] function extracts all keys and
values of a dynamic column.
.SS Parameter
.IP \[bu] 2
\f[CR]str\f[R] \- Pointer to a \f[CR]DYNAMIC_COLUMN\f[R] structure
.IP \[bu] 2
\f[CR]column count\f[R] \- Pointer to an unsigned integer which will
receive the number of columns
.IP \[bu] 2
\f[CR]column_keys\f[R] \- Pointer of an array of
\f[CR]MYSQL_LEX_STRING\f[R] structures, which will contain the column
keys
.IP \[bu] 2
\f[CR]values\f[R] \- Pointer of an array of
\f[CR]DYNAMIC_COLUMN_VALUE\f[R] structures, which will contain the
values.
.SS Return value
Returns \f[CR]ER_DYNCOL_OK\f[R] on success, otherwise an error.
.SS Notes
.IP \[bu] 2
The \f[CR]column_keys\f[R] and \f[CR]values\f[R] arrays will be
allocated by \f[CR]mariadb_dyncol_unpack()\f[R] and must be freed by
application.
.SS See also
.IP \[bu] 2
\f[B]mariadb_dyncol_get(3)\f[R]
.IP \[bu] 2
\f[B]mariadb_dyncol_list(3)\f[R]