比如这些参数  我想查一下都是什么含义

PARA_NAME
PAGE_TAIL_SIZE
PAGE_CHECK_HASH_SIZE
PAGE_CHECK_ID
PAGE_ENC_SLICE_SIZE
GLOBAL_PAGE_TAIL_POS
ENABLE_FREQROOTS
PARALLEL_PURGE_FLAG
UNDO_EXTENT_NUM
ENABLE_PAGE_CHECK
PARALLEL_POLICY
CACHE_POOL_SIZE
TEMP_SPACE_LIMIT
TEMP_SIZE
OLAP_FLAG
PORT_NUM
MAX_SESSIONS
IO_THR_GROUPS
LKUP_CPU
ADAPTIVE_NPLN_FLAG
VIEW_PULLUP_FLAG
ENABLE_INJECT_HINT
TASK_THREADS
WORKER_THREADS
HAGR_BUF_SIZE
HAGR_BUF_GLOBAL_SIZE
HJ_BUF_SIZE
HJ_BUF_GLOBAL_SIZE
SORT_BUF_GLOBAL_SIZE
SORT_BUF_SIZE
RECYCLE_POOLS
RECYCLE
BUFFER_POOLS
MEMORY_TARGET
MEMORY_POOL
MAX_OS_MEMORY