PostgreSQL Error 2200N: invalid xml content
PostgreSQL error 2200N: invalid xml content occurs when you attempt to insert or process malformed XML data into an XML type column or pass invalid XML to XML-related functions. PostgreSQL strictly validates XML data against the W3C XML standard, and any deviation — from mismatched tags to illegal characters — triggers this error. It most commonly appears when ingesting XML from external APIs, legacy systems, or dynamically building XML strings in application code.
Top 3 Causes & SQL Examples
1. Mismatched or Improperly Nested Tags
XML requires every opening tag to have a matching closing tag in the correct order.
