The invalid_xml_content error (SQLSTATE 2200N) occurs when PostgreSQL detects non-well-formed XML or disallowed content in an XML value.
invalid_xml_content (SQLSTATE 2200N) appears when PostgreSQL rejects XML that is not well-formed or violates the XML data type rules. Validate the XML, escape special characters, or cast the column to text before the operation to resolve the issue.
invalid_xml_content
SQLSTATE 2200N indicates invalid_xml_content. PostgreSQL raises it when a value assigned to the XML data type is not well-formed or includes disallowed constructs such as a DOCTYPE declaration.
The server rejects the statement at parse or execution time, preventing corrupt or insecure XML from entering the database.
Fixing the error is crucial for data integrity and safe XML processing.
Malformed tags, unescaped ampersands, or mismatched element boundaries make XML not well-formed and trigger SQLSTATE 2200N.
DOCTYPE, ENTITY, or other prohibited declarations that violate PostgreSQL’s xmloption settings also raise invalid_xml_content.
Encoding mismatches, such as UTF-8 data declared as ISO-8859-1 inside the XML prolog, cause parsing failures.
Validate the XML with an external parser or PostgreSQL’s xml_is_well_formed function before insertion.
Escape special characters (&, <, >, ") or wrap dynamic values with the built-in function xmlencode().
If you only need the raw text, cast the value to TEXT rather than XML to bypass strict validation.
INSERT with an unclosed tag fails - close the tag or correct nesting.
SELECT ...::xml on a TEXT column containing JSON fails - ensure the column holds valid XML before casting.
Loading externally generated files with DOCTYPE declarations fails - strip the DOCTYPE or set xmloption to content if appropriate.
Always validate XML in application code or with PostgreSQL’s xml_is_well_formed.
Use parameterized queries in Galaxy’s SQL editor to prevent accidental injection of broken XML.
Store the original file in a TEXT column alongside the validated XML column for audit and recovery.
2200M invalid_xml_document - raised when the entire document, not just content, is malformed; fix by validating the full XML including prolog.
2200L invalid_xml_document - similar but occurs when parsing documents with multiple top-level elements; wrap the elements in a single root.
22P02 invalid_text_representation - shows up when casting non-XML strings to XML; cast only validated XML or use xmlparse().
.
It is a data exception indicating the supplied value violates XML rules, not a SQL syntax problem.
No global switch exists. You can store the data as TEXT or use xmloption = content to allow fragments.
Yes. Galaxy’s AI copilot highlights unescaped characters and lets you run validation queries quickly in the editor.
No. The check is part of the SQL standard. You must supply well-formed XML or store it as text.
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