PostgreSQL

37.53. `transforms`
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37.53. `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 “[.quote]#from SQL”# or “[.quote]#to SQL”# function).

Table 37.51. transforms Columns

Name Data Type Description

Name	Data 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 “[.quote]#specific name”# of the function. See Section 37.40 for more information.
`group_name`	`sql_identifier`	The SQL standard allows defining transforms in “[.quote]#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`

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 “[.quote]#specific name”# of the function. See Section 37.40 for more information.

group_name

sql_identifier

The SQL standard allows defining transforms in “[.quote]#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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37.53. transforms

37.53. `transforms`