GS_TOTAL_NODEGROUP_MEMORY_DETAIL

ng_total_memory: total memory of the logical instance.
ng_used_memory: memory usage of the logical instance.
ng_estimate_memory: estimated memory usage of the logical instance.
ng_foreignrp_memsize: total memory of the external resource pool of the logical instance.
ng_foreignrp_usedsize: memory usage of the external resource pool of the logical instance.
ng_foreignrp_peaksize: peak memory usage of the external resource pool of the logical instance.
ng_foreignrp_mempct: percentage of the external resource pool of the logical instance to the total memory of the logical instance.
ng_foreignrp_estmsize: estimated memory usage of the external resource pool of the logical instance.

GS_TOTAL_NODEGROUP_MEMORY_DETAIL returns the memory usage (in MB) of the current logical instance of the database. If the GUC parameter enable_memory_limit is set to off, this view is unavailable.

**Table 1** GS_TOTAL_NODEGROUP_MEMORY_DETAIL columns
Name	Type	Description
ngname	text	Logical instance name.
memorytype	text	Memory type. The value must be one of the following: ng_total_memory: total memory of the logical instance. ng_used_memory: memory usage of the logical instance. ng_estimate_memory: estimated memory usage of the logical instance. ng_foreignrp_memsize: total memory of the external resource pool of the logical instance. ng_foreignrp_usedsize: memory usage of the external resource pool of the logical instance. ng_foreignrp_peaksize: peak memory usage of the external resource pool of the logical instance. ng_foreignrp_mempct: percentage of the external resource pool of the logical instance to the total memory of the logical instance. ng_foreignrp_estmsize: estimated memory usage of the external resource pool of the logical instance.
memorymbytes	integer	Size of allocated memory-typed memory.