info > DROP_TRANSFORM

📋 NAME

DROP_TRANSFORM - remove a transform

🚀 Quick Reference

📖 SYNOPSIS

DROP TRANSFORM [ IF EXISTS ] FOR type_name LANGUAGE lang_name [ CASCADE | RESTRICT ]

📝 DESCRIPTION

DROP TRANSFORM removes a previously defined transform.

To be able to drop a transform, you must own the type and the language. These are the same privileges that are required to create a transform.

⚙️ PARAMETERS

• IF EXISTS - ✅ Do not throw an error if the transform does not exist. A notice is issued in this case.
• type_name - 🏷️ The name of the data type of the transform.
• lang_name - 🌐 The name of the language of the transform.
• CASCADE - 🔄 Automatically drop objects that depend on the transform, and in turn all objects that depend on those objects (see Section 5.14).
• RESTRICT - 🚫 Refuse to drop the transform if any objects depend on it. This is the default.

💡 EXAMPLES

To drop the transform for type hstore and language plpythonu:

DROP TRANSFORM FOR hstore LANGUAGE plpythonu;

🔗 COMPATIBILITY

This form of DROP TRANSFORM is a PostgreSQL extension. See CREATE TRANSFORM (CREATE_TRANSFORM(7)) for details.

📚 SEE ALSO

CREATE TRANSFORM (CREATE_TRANSFORM(7))

PostgreSQL 14.23 2026 DROP TRANSFORM(7)