SHOW POOL_CACHE

Description

SHOW POOL_CACHE displays in memory query cache statistics if in memory query cache is enabled. Here is an example session:

    test=# \x
    \x
    Expanded display is on.
    test=# show pool_cache;
    show pool_cache;
    -[ RECORD 1 ]---------------+---------
    num_cache_hits              | 891703
    num_selects                 | 99995
    cache_hit_ratio             | 0.90
    num_hash_entries            | 131072
    used_hash_entries           | 99992
    num_cache_entries           | 99992
    used_cache_enrties_size     | 12482600
    free_cache_entries_size     | 54626264
    fragment_cache_entries_size | 0