启用和禁用局部分段

要启用局部分段，请使用 ENABLE_LOCAL_SEGMENTS 函数。要禁用局部分段，请使用 DISABLE_LOCAL_SEGMENTATION 函数：

=> SELECT ENABLE_LOCAL_SEGMENTS();
ENABLE_LOCAL_SEGMENTS
-----------------------
 ENABLED
(1 row)


=> SELECT is_local_segment_enabled FROM elastic_cluster;
 is_enabled
------------
 t
(1 row)

=> SELECT DISABLE_LOCAL_SEGMENTS();
 DISABLE_LOCAL_SEGMENTS
------------------------
 DISABLED
(1 row)

=> SELECT is_local_segment_enabled FROM ELASTIC_CLUSTER;
 is_enabled
------------
 f
(1 row)