Help Center/ GaussDB/ Developer Guide(Centralized_V2.0-8.x)/ System Catalogs and System Views/ System Catalogs/ SPM/ GS_SPM_PLAN_HISTORY

Updated on 2025-05-29 GMT+08:00

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GS_SPM_PLAN_HISTORY

GS_SPM_PLAN_HISTORY is a system catalog used to record plan change history. Users with SYSADMIN permissions can read the system catalog, but only the initial user can write data to the system catalog.

**Table 1** GS_SPM_PLAN_HISTORY columns
Name	Type	Description
sql_hash	bigint	Unique ID of the SQL statement in the SPM.
plan_hash	bigint	Plan ID.
plan_hash_previous	bigint	ID of the previous plan. If there is no previous plan, the value is 0.
userid	oid	User who creates the change history.
creation_time	timestamp with time zone	Time when the change history is created.

Parent topic: SPM

Previous topic: GS_SPM_EVOLUTION

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