SUMMARY_STATIO_ALL_TABLES
SUMMARY_STATIO_ALL_TABLES contains I/O statistics about each table (including TOAST tables) in databases in openGauss.
Table 1 SUMMARY_STATIO_ALL_TABLES columns
Name | Type | Description |
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schemaname | name | Name of the schema that contains the table |
relname | name | Table name |
heap_blks_read | numeric | Number of disk blocks read from the table |
heap_blks_hit | numeric | Number of cache hits in the table |
idx_blks_read | numeric | Number of disk blocks read from all indexes in the table |
idx_blks_hit | numeric | Number of cache hits in the table |
toast_blks_read | numeric | Number of disk blocks read from the TOAST table (if any) in the table |
toast_blks_hit | numeric | Number of buffer hits in the TOAST table (if any) in the table |
tidx_blks_read | numeric | Number of disk blocks read from the TOAST table index (if any) in the table |
tidx_blks_hit | numeric | Number of buffer-hits in the TOAST table index (if any) in the table |
openGauss 2024-12-26 01:05:31