SQL Statistics
The following table describes columns in the SQL Statistics report.
Column |
Description |
---|---|
Unique SQL Id |
ID of the normalized SQL statement. |
Node Name |
Node name. |
User Name |
Username. |
Tuples Read |
Number of tuples that are read. |
Calls |
Number of calls. |
Min Elapse Time(us) |
Minimum execution time (unit: us). |
Max Elapse Time(us) |
Maximum execution time (unit: us). |
Total Elapse Time(us) |
Total execution time (unit: us). |
Avg Elapse Time(us) |
Average execution time (unit: us). |
Returned Rows |
Number of rows returned by SELECT. |
Tuples Affected |
Number of rows affected by INSERT, UPDATE, and DELETE. |
Logical Read |
Number of logical reads on the buffer. |
Physical Read |
Number of physical reads on the buffer. |
CPU Time(us) |
CPU time (unit: us). |
Data IO Time(us) |
Time spent on I/O (unit: us). |
Sort Count |
Number of sorting execution times. |
Sort Time(us) |
Sorting execution time (unit: us). |
Sort Mem Used(KB) |
Size of work memory used during sorting (unit: KB). |
Sort Spill Count |
Number of file writes when data is flushed to disks during sorting. |
Sort Spill Size(KB) |
File size used when data is flushed to disks during sorting (unit: KB). |
Hash Count |
Number of hashing execution times. |
Hash Time(us) |
Hashing execution time (unit: us). |
Hash Mem Used(KB) |
Size of work memory used during hashing (unit: KB). |
Hash Spill Count |
Number of file writes when data is flushed to disks during hashing. |
Hash Spill Size(KB) |
File size used when data is flushed to disks during hashing (unit: KB). |
SQL Text |
Normalized SQL character string. |
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