Description of binlog_row_image mentions mysqld

static const char *binlog_row_image_names[]= {"MINIMAL", "NOBLOB", "FULL", NullS};

static Sys_var_enum Sys_binlog_row_image(

       "binlog_row_image",

       "Controls whether rows should be logged in 'FULL', 'NOBLOB' or "

       "'MINIMAL' formats. 'FULL', means that all columns in the before "

       "and after image are logged. 'NOBLOB', means that mysqld avoids logging "

       "blob columns whenever possible (eg, blob column was not changed or "

       "is not part of primary key). 'MINIMAL', means that a PK equivalent (PK "

       "columns or full row if there is no PK in the table) is logged in the "

       "before image, and only changed columns are logged in the after image. "

       "(Default: FULL).",

       SESSION_VAR(binlog_row_image), CMD_LINE(REQUIRED_ARG),

       binlog_row_image_names, DEFAULT(BINLOG_ROW_IMAGE_FULL));