Oracle 5.0, Справочное руководство

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Mysqlnd query result cache plugin (
mysqlnd_qc
)
2688
Property Description Version
* ((run_time -
avg_run_time)
+ (store_time -
avg_store_time))
.
store_time
Store time of the
statements result set
to which the cache
entry belongs. This
is the time it took
to fetch and store
the results of the
uncached statement. Since
1.0.0.
min_run_time
Minimum run time of
the cached statement.
How long it took to
find the statement in
the cache. Since
1.0.0.
min_store_time
Minimum store time of
the cached statement.
The time taken for
fetching the cached
result set from the
storage medium and
decoding Since
1.0.0.
avg_run_time
Average run time of
the cached statement. Since
1.0.0.
avg_store_time
Average store time of
the cached statement. Since
1.0.0.
max_run_time
Average run time of
the cached statement. Since
1.0.0.
max_store_time
Average store time of
the cached statement. Since
1.0.0.
valid_until
Timestamp when the
cache entry expires. Since
1.1.0.
metadata
array Metadata of the cache entry.
This is the metadata provided by
MySQL together with the result
set of the statement in question.
Different versions of the MySQL
server may return different
metadata. Unlike with some of
the PHP MySQL extensions no
attempt is made to hide MySQL
server version dependencies and
version details from the caller.
Please, refer to the MySQL C
API documentation that belongs
to the MySQL server in use for
further details.
The metadata list contains one
entry for every column.