PostgreSQL Error 2200M: invalid xml document
PostgreSQL error 2200M: invalid xml document is raised when an XML value passed to XMLPARSE(DOCUMENT ...) or inserted into an xml-typed column does not conform to the W3C XML specification for a well-formed document. Unlike 2200N: invalid xml content, this error specifically targets document-level structural violations, such as missing or multiple root elements. It commonly appears during data migrations, API integrations, or when dynamically building XML strings in application code.
Top 3 Causes & SQL Examples
1. Multiple or Missing Root Elements
An XML document must have exactly one root element. Passing fragments or multiple top-level elements will immediately trigger this error.
