![]() ![]() The original and new field names must have the same number of wildcards The data in fieldB will contain null values. ![]() If fieldB does exist, the result of the rename is that the data in fieldB is removed.If fieldB does not exist, nothing happens.Suppose you rename fieldA to fieldB, but fieldA does not exist. Because the Splunk platform doesn't support escaping wildcards, asterisk ( * ) characters in field names in rename searches can't be matched and replaced. A backslash \ and an asterisk * match the characters \* in searches, not an escaped wildcard character. You can use the asterisk ( * ) in your searches as a wildcard character, but you can't use a backslash ( \ ) to escape an asterisk in search strings. You can't match wildcard characters while renaming fields See the eval command and coalesce() function. It overwrites product_id with Null values where pid does not exist for the event. | rename pid AS product_id would not merge the pid values into the product_id field. You can't use the rename command to merge multiple fields into one field because null, or non-present, fields are brought along with the values.įor example, if you have events with either product_id or pid fields. | stats first(host) AS site, first(host) AS report You can't merge multiple fields into one field This rule also applies to other commands where you can rename fields, such as the stats command. For example if you have field A, you can't specify | rename A as B, A as C. You can't rename one field with multiple names. You can't rename one field with multiple names You can rename the fields to replace EU with EMEA:īoth the original and renamed fields must include the same number of wildcards, otherwise a wildcard mismatch error is returned. For example, suppose you have the following field names: Use wildcards to rename multiple fields with similar names. | rename SESSIONID AS "The session ID" Rename multiple, similarly named fields Use quotation marks when you rename a field with a phrase. The rename command is a distributable streaming command. For example, if you want to specify all fields that start with "value", you can use a wildcard such as value*. You can use the asterisk ( * ) as a wildcard to specify a list of fields with similar names. Field names with spaces must be enclosed in quotation marks. Required arguments wc-field Syntax: Description: The name of a field and the name to replace it. If you want to rename fields with similar names, you can use a wildcard character. This command is useful for giving fields more meaningful names, such as "Product ID" instead of "pid". Use the rename command to rename one or more fields. ![]()
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