Help Center/ GaussDB/ Developer Guide(Centralized_8.x)/ System Catalogs and System Views/ System Views/ Segment-Page Storage/ GS_SEG_SEGMENT_LAYOUT

Updated on 2024-06-03 GMT+08:00

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GS_SEG_SEGMENT_LAYOUT

GS_SEG_SEGMENT_LAYOUT displays the static layout of segment-page files. Only the administrator can query the information.

**Table 1** GS_SEG_SEGMENT_LAYOUT columns
Name	Type	Description
version	text	Segment-page version. Default value: 1.0.
section_id	integer	ID of the data section divided by a segment.
section_type	text	Extent type of the segment data section. Value range: meta: segment header. data: data.
extent_size	integer	Extent size. The unit is byte.
extent_page_count	integer	Number of extent pages.
extent_count_start	bigint	Start extent number.
extent_count_end	bigint	End extent number.
total_size	bigint	Size of the segment data section. The unit is byte.

Parent topic: Segment-Page Storage

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