The FIELDNAME field function returns the name of a given field.
FIELDNAME returns the name of the field identified by source_field_reference as a character value. If the parameter identifies a nonexistent field, NULL is returned.
FIELDNAME(InputRoot.XML)returns XML.
FIELDNAME(InputBody)returns the name of the last child of InputRoot, which could be XML.
FIELDNAME(InputRoot.*[<])returns the name of the last child of InputRoot, which could be XML.
Related concepts
ESQL
Related tasks
Developing ESQL
Related reference
Syntax preference
ESQL field functions
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