35.55. transforms #

   The view transforms contains information about the transforms defined
   in the current database. More precisely, it contains a row for each
   function contained in a transform (the “from SQL” or “to SQL”
   function).

   Table 35.53. transforms Columns

   Column Type

   Description

   udt_catalog sql_identifier

   Name of the database that contains the type the transform is for
   (always the current database)

   udt_schema sql_identifier

   Name of the schema that contains the type the transform is for

   udt_name sql_identifier

   Name of the type the transform is for

   specific_catalog sql_identifier

   Name of the database containing the function (always the current
   database)

   specific_schema sql_identifier

   Name of the schema containing the function

   specific_name sql_identifier

   The “specific name” of the function. See Section 35.45 for more
   information.

   group_name sql_identifier

   The SQL standard allows defining transforms in “groups”, and selecting
   a group at run time. PostgreSQL does not support this. Instead,
   transforms are specific to a language. As a compromise, this field
   contains the language the transform is for.

   transform_type character_data

   FROM SQL or TO SQL