Help Center/ GaussDB/ Centralized_8.x/ SQL Reference/ Functions and Operators/ System Administration Functions/ Hash Bucket System Functions
Updated on 2024-06-03 GMT+08:00
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Hash Bucket System Functions

  • gs_redis_get_plan(origin_group_id OID, target_group_id OID)

    Description: Obtains a complete migration plan. This function is not supported in the current version.

  • gs_redis_get_bucket_statistics

    Description: Obtains the log flow transmission status. This function is not supported in the current version.

  • gs_redis_set_distributed_db(db_name CSTRING)

    Description: Sets the database that is being redistributed using hash bucket. This function is not supported in the current version.

  • gs_redis_hashbucket_update_segment_header(origin_group_id OID, target_group_id OID)

    Description: Updates the headers of all hash bucket tables in the current database. This function is not supported in the current version.

  • gs_redis_local_get_segment_header(table_name REGCLASS, bucketlist OIDVECTOR_EXTEND)

    Description: Obtains the header of a segment-page table. This function is not supported in the current version.

  • gs_redis_local_update_segment_header(table_name REGCLASS, header_info CSTRING)

    Description: Updates the header of a segment-page table. This function is not supported in the current version.

  • gs_redis_hashbucket_update_inverse_pointer(buckets TEXT, origin_dn_name TEXT, new_dn_name TEXT)

    Description: Updates the inverse pointers of buckets of this batch in all hash bucket tables in the current database. This function is not supported in the current version.

  • gs_redis_local_get_inverse_pointer(buckets TEXT, origin_dn_name TEXT, new_dn_name TEXT)

    Description: Obtains the inverse pointer. This function is not supported in the current version.

  • gs_redis_local_update_inverse_pointer(table_name TEXT, header_info TEXT, bucketlist TEXT)

    Description: Records Xlogs for updating inverse pointers. This function is not supported in the current version.

  • gs_redis_local_set_hashbucket_frozenxid

    Description: Changes the relfrozenxid64 value of the hash bucket table in the system catalog. This function is not supported in the current version.

  • gs_redis_set_hashbucket_frozenxid(origin_group_id OID, target_group_id OID)

    Description: Changes the relfrozenxid64 value of the hash bucket table in the system catalog on the new DN. This function is not supported in the current version.

  • gs_redis_set_nextxid(xid BIGINT)

    Description: Modifies the next_xid value of a DN. This function is not supported in the current version.

  • gs_redis_set_csn(csn BIGINT)

    Description: Changes the next_csn value of a DN. This function is not supported in the current version.

  • gs_redis_check_bucket_flush(dn_array NAME[])

    Description: Determines whether all private buffers for RTO replay are flushed. This function is not supported in the current version.

  • gs_redis_get_flush_page_lsn(isclean bool)

    Description: Queries the page refreshing information of bucket scale-out replay. This function is not supported in the current version.

  • gs_redis_show_bucketxid(bucketid_list OIDVECTOR_EXTEND)

    Description: Queries the bucketxid corresponding to a specified bucket. This function is not supported in the current version.

  • gs_redis_drop_bucket_files(origin_group_id OID, target_group_id OID)

    Description: Deletes the files that have been physically migrated from the source node. This function is not supported in the current version.

  • gs_redis_local_drop_bucket_files(bucketlist CSTRING, bucketnum SMALLINT)

    Description: Deletes the corresponding bucket list. This function is not supported in the current version.