System Functions This page provides reference information for the system-related functions in TiDB Cloud Lake. These functions help you analyze and monitor the internal storage and performance aspects of your TiDB Cloud Lake deployment.
Function Description Example CLUSTERING_INFORMATION Returns clustering information of a table CLUSTERING_INFORMATION('default', 'mytable')
Storage Layer Functions Function Description Example FUSE_SNAPSHOT Returns snapshot information of a table FUSE_SNAPSHOT('default', 'mytable')FUSE_SEGMENT Returns segment information of a table FUSE_SEGMENT('default', 'mytable')FUSE_BLOCK Returns block information of a table FUSE_BLOCK('default', 'mytable')FUSE_COLUMN Returns column information of a table FUSE_COLUMN('default', 'mytable')
Storage Optimization Functions Function Description Example FUSE_STATISTIC Returns statistics information of a table FUSE_STATISTIC('default', 'mytable')FUSE_ENCODING Returns encoding information of a table FUSE_ENCODING('default', 'mytable')FUSE_VIRTUAL_COLUMN Returns virtual column information FUSE_VIRTUAL_COLUMN('default', 'mytable')FUSE_TIME_TRAVEL_SIZE Returns time travel storage information FUSE_TIME_TRAVEL_SIZE('default', 'mytable')