Help Center/ GaussDB/ Developer Guide(Distributed_V2.0-8.x)/ System Catalogs and System Views/ System Views/ Segment-Page Storage/ GS_SEG_SEGMENT_LAYOUT
Updated on 2025-08-19 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