Help Center/ GaussDB/ Developer Guide(Distributed_V2.0-8.x)/ System Catalogs and System Views/ System Catalogs/ Other System Catalogs/ GS_TXN_SNAPSHOT

Updated on 2025-08-19 GMT+08:00

View PDF

GS_TXN_SNAPSHOT

GS_TXN_SNAPSHOT is a timestamp-CSN mapping table. It periodically samples and maintains an appropriate time range to estimate the CSN corresponding to the timestamp in the range.

**Table 1** GS_TXN_SNAPSHOT columns
Name	Type	Description
snptime	timestamp with time zone	Snapshot time
snpxmin	bigint	Minimum snapshot ID
snpcsn	bigint	Snapshot CSN
snpsnapshot	text	Serialized snapshot text

Parent topic: Other System Catalogs

Previous topic: GS_TS_DICT_DEFINITION

Next topic: GS_UID

Feedback

Was this page helpful?

Helpful Not helpful

Provide feedback

Thank you very much for your feedback. We will continue working to improve the documentation.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel