luhuayi
177cd61a57
Reviewed-by: Pruthi, Vineet <vineet.pruthi@t-systems.com> Co-authored-by: luhuayi <luhuayi@huawei.com> Co-committed-by: luhuayi <luhuayi@huawei.com>
9.0 KiB
GLOBAL_ROW_TABLE_IO_STAT
GLOBAL_ROW_TABLE_IO_STAT provides I/O statistics of all row-store tables in the current database. The names, types, and sequences of the columns in the view are the same as those in the GS_ROW_TABLE_IO_STAT view. For details about the columns, see Table 1. The value of each statistical column is the sum of the values of the corresponding columns of all nodes.
Column |
Type |
Description |
|---|---|---|
schemaname |
Name |
Namespace of a table |
relname |
Name |
Name of a table |
heap_read |
Bigint |
Number of blocks logically read in the heap |
heap_hit |
Bigint |
Number of block hits in the heap |
idx_read |
Bigint |
Number of blocks logically read in the index |
idx_hit |
Bigint |
Number of block hits in the index |
toast_read |
Bigint |
Number of blocks logically read in the TOAST table |
toast_hit |
Bigint |
Number of block hits in the TOAST table |
tidx_read |
Bigint |
Number of indexes logically read in the TOAST table |
tidx_hit |
Bigint |
Number of index hits in the TOAST table |