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 34-51. transforms Columns
|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 34.40 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|
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