Oracle 5.0 Reference Manual page 2559

Statistic Scope Description
created by a "normal" query or a
prepared statement.
Connection T otal number of rows fetch by the client
rows_fetched_from_client_ps_cursor
from a cursor created by a prepared
statement.
Connection R eserved for future use (currently not
rows_skipped_normal,
supported)
rows_skipped_ps
Process With mysqlnd, variables returned by the
copy_on_write_saved,
extensions point into mysqlnd internal
copy_on_write_performed
network result buffers. If you do not
change the variables, fetched data will
be kept only once in memory. If you
change the variables, mysqlnd has
to perform a copy-on-write to protect
the internal network result buffers
from being changed. With the MySQL
Client Library you always hold fetched
data twice in memory. Once in the
internal MySQL Client Library buffers
and once in the variables returned by
the extensions. In theory mysqlnd can
save up to 40% memory. However,
note that the memory saving cannot be
measured using memory_get_usage.
Connection, Total number of freed result sets.
explicit_free_result,
Process
implicit_free_result
(only
during
prepared
statement
cleanup)
Connection T otal number of columns of a certain
proto_text_fetched_null,
type fetched from a normal query
proto_text_fetched_bit,
(MySQL text protocol).
proto_text_fetched_tinyint
proto_text_fetched_short,
proto_text_fetched_int24,
proto_text_fetched_int
proto_text_fetched_bigint,
proto_text_fetched_decimal,
proto_text_fetched_float
proto_text_fetched_double,
proto_text_fetched_date,
proto_text_fetched_year
proto_text_fetched_time,
proto_text_fetched_datetime,
proto_text_fetched_timestamp
proto_text_fetched_string,
proto_text_fetched_blob,
proto_text_fetched_enum
proto_text_fetched_set,
proto_text_fetched_geometry,
proto_text_fetched_other
MySQL Native Driver (Mysqlnd)
2539
Notes
The free is always considered
explicit but for result sets created
by an init command, for example,
mysqli_options(MYSQLI_INIT_COMMAND ,
Mapping from C API / MySQL meta
data type to statistics name:
• -
MYSQL_TYPE_NULL
proto_text_fetched_null
• -
MYSQL_TYPE_BIT
proto_text_fetched_bit
• -
MYSQL_TYPE_TINY
proto_text_fetched_tinyint
• -
MYSQL_TYPE_SHORT
proto_text_fetched_short
• -
MYSQL_TYPE_INT24
proto_text_fetched_int24
• -
MYSQL_TYPE_LONG
proto_text_fetched_int
•
MYSQL_TYPE_LONGLONG
proto_text_fetched_bigint
-