Gbase 8C transaction ID and snapshot (IV)

pg_shared_memory_detail

describe ： Returns the usage information of all generated shared memory contexts , Please refer to the description of each column GS_SHARED_MEMORY_DETAIL.

Parameters ：nan

return type ：contextname text, level smallint, parent text, totalsize bigint, freesize bigint, usedsize bigint

get_gtm_lite_status

describe ： return GTM Upper backupXid and csn Number , Used to support problem location ,GTM-FREE This system function is not supported in mode .

gs_stat_get_wlm_plan_operator_info

describe ： Get operator plan information from internal hash table .

Parameters ：oid

return type ：datname text, queryid int8, plan_node_id int4, startup_time int8, total_time int8, actual_rows int8, max_peak_memory int4, query_dop int4, parent_node_id int4, left_child_id int4, right_child_id int4, operation text, orientation text, strategy text, options text, condition text, projection text

pg_stat_get_partition_tuples_hot_updated

describe ： Return to the given partition id Statistics of the number of new element groups of partition heat .

Parameters ：oid

return type ：bigint

gs_session_memory_detail_tp

describe ： Return the memory usage of the session , Reference resources gs_session_memory_detail.

Parameters ：nan

return type ：sessid text, sesstype text, contextname text, level smallint, parent text, totalsize bigint, freesize bigint, usedsize bigint

gs_thread_memory_detail

describe ： Return the memory information of each thread .

Parameters ：nan

return type ：threadid text, tid bigint, thrdtype text, contextname text, level smallint, parent text, totalsize bigint, freesize bigint, usedsize bigint

pg_stat_get_wlm_realtime_operator_info

describe ： Get the real-time execution plan operator information from the internal hash table .

Parameters ：nan

return type ：queryid bigint, pid bigint, plan_node_id integer, plan_node_name text, start_time timestamp with time zone, duration bigint, status text, query_dop integer, estimated_rows bigint, tuple_processed bigint, min_peak_memory integer, max_peak_memory integer, average_peak_memory integer, memory_skew_percent integer, min_spill_size integer, max_spill_size integer, average_spill_size integer, spill_skew_percent integer, min_cpu_time bigint, max_cpu_time bigint, total_cpu_time bigint, cpu_skew_percent integer, warning text