The tracefile_identifier is used to add specific content to the log, facilitating line filtering and iterative tracing of logs.
Attribute |
Description |
|---|---|
| Parameter type | varchar |
| Default Value | Empty String |
| Value range | NULL |
| Effective Scope | SESSION |
| Whether to participate in serialization | Yes |
You can use the TRACING and STAT hints to instruct the executor to print each line of content during operator execution. To make this content easier to search and identify, you can use the tracefile_identifier to specify a string, such as XXXYYYZZZ or MY_TRACE, which will be output to the log together with the line content for easy searching.