D.2. Unsupported Features

The following features defined in SQL:2011 are not implemented in this release of PostgreSQL . In a few cases, equivalent functionality is available.

Identifier Package Description Comment
B011 Embedded Ada
B013 Embedded COBOL
B014 Embedded Fortran
B015 Embedded MUMPS
B016 Embedded Pascal
B017 Embedded PL/I
B031 Basic dynamic SQL
B032 Extended dynamic SQL
B033 Untyped SQL-invoked function arguments
B034 Dynamic specification of cursor attributes
B035 Non-extended descriptor names
B041 Extensions to embedded SQL exception declarations
B051 Enhanced execution rights
B111 Module language Ada
B112 Module language C
B113 Module language COBOL
B114 Module language Fortran
B115 Module language MUMPS
B116 Module language Pascal
B117 Module language PL/I
B121 Routine language Ada
B122 Routine language C
B123 Routine language COBOL
B124 Routine language Fortran
B125 Routine language MUMPS
B126 Routine language Pascal
B127 Routine language PL/I
B128 Routine language SQL
B211 Module language Ada: VARCHAR and NUMERIC support
B221 Routine language Ada: VARCHAR and NUMERIC support
E182 Core Module language
F054 TIMESTAMP in DATE type precedence list
F121 Basic diagnostics management
F121-01 GET DIAGNOSTICS statement
F122 Enhanced diagnostics management
F123 All diagnostics
F181 Core Multiple module support
F263 Comma-separated predicates in simple CASE expression
F291 UNIQUE predicate
F301 CORRESPONDING in query expressions
F311 Core Schema definition statement
F312 MERGE statement consider INSERT ... ON CONFLICT DO UPDATE
F313 Enhanced MERGE statement
F314 MERGE statement with DELETE branch
F341 Usage tables no ROUTINE_*_USAGE tables
F385 Drop column generation expression clause
F394 Optional normal form specification
F403 Partitioned joined tables
F451 Character set definition
F461 Named character sets
F492 Optional table constraint enforcement
F521 Enhanced integrity management Assertions
F671 Enhanced integrity management Subqueries in CHECK intentionally omitted
F693 SQL-session and client module collations
F695 Translation support
F696 Additional translation documentation
F721 Deferrable constraints foreign and unique keys only
F741 Referential MATCH types no partial match yet
F812 Core Basic flagging
F813 Extended flagging
F821 Local table references
F831 Full cursor update
F831-01 Updatable scrollable cursors
F831-02 Updatable ordered cursors
F841 LIKE_REGEX predicate
F843 POSITION_REGEX function
F846 Octet support in regular expression operators
F847 Nonconstant regular expressions
F866 FETCH FIRST clause: PERCENT option
F867 FETCH FIRST clause: WITH TIES option
S011 Core Distinct data types
S011-01 Core USER_DEFINED_TYPES view
S023 Basic object support Basic structured types
S024 Enhanced object support Enhanced structured types
S025 Final structured types
S026 Self-referencing structured types
S027 Create method by specific method name
S028 Permutable UDT options list
S041 Basic object support Basic reference types
S043 Enhanced object support Enhanced reference types
S051 Basic object support Create table of type partially supported
S081 Enhanced object support Subtables
S091 Basic array support partially supported
S091-01 Arrays of built-in data types
S091-02 Arrays of distinct types
S091-03 Array expressions
S094 Arrays of reference types
S097 Array element assignment
S151 Basic object support Type predicate
S161 Enhanced object support Subtype treatment
S162 Subtype treatment for references
S202 SQL-invoked routines on multisets
S231 Enhanced object support Structured type locators
S232 Array locators
S233 Multiset locators
S241 Transform functions
S242 Alter transform statement
S251 User-defined orderings
S261 Specific type method
S271 Basic multiset support
S272 Multisets of user-defined types
S274 Multisets of reference types
S275 Advanced multiset support
S281 Nested collection types
S291 Unique constraint on entire row
S401 Distinct types based on array types
S402 Distinct types based on distinct types
T011 Timestamp in Information Schema
T021 BINARY and VARBINARY data types
T022 Advanced support for BINARY and VARBINARY data types
T023 Compound binary literal
T024 Spaces in binary literals
T041 Basic object support Basic LOB data type support
T041-01 Basic object support BLOB data type
T041-02 Basic object support CLOB data type
T041-03 Basic object support POSITION, LENGTH, LOWER, TRIM, UPPER, and SUBSTRING functions for LOB data types
T041-04 Basic object support Concatenation of LOB data types
T041-05 Basic object support LOB locator: non-holdable
T042 Extended LOB data type support
T043 Multiplier T
T044 Multiplier P
T051 Row types
T052 MAX and MIN for row types
T053 Explicit aliases for all-fields reference
T061 UCS support
T101 Enhanced nullability determination
T111 Updatable joins, unions, and columns
T175 Generated columns
T176 Sequence generator support
T180 System-versioned tables
T181 Application-time period tables
T211 Active database, Enhanced integrity management Basic trigger capability
T211-06 Active database, Enhanced integrity management Support for run-time rules for the interaction of triggers and constraints
T211-08 Active database, Enhanced integrity management Multiple triggers for the same event are executed in the order in which they were created in the catalog intentionally omitted
T251 SET TRANSACTION statement: LOCAL option
T261 Chained transactions
T272 Enhanced savepoint management
T301 Functional dependencies partially supported
T321 Core Basic SQL-invoked routines
T321-05 Core RETURN statement
T322 PSM Declared data type attributes
T324 Explicit security for SQL routines
T326 Table functions
T332 Extended roles mostly supported
T471 Result sets return value
T495 Combined data change and retrieval different syntax
T502 Period predicates
T511 Transaction counts
T522 Default values for IN parameters of SQL-invoked procedures supported except DEFAULT key word in invocation
T561 Holdable locators
T571 Array-returning external SQL-invoked functions
T572 Multiset-returning external SQL-invoked functions
T601 Local cursor references
T612 Advanced OLAP operations some forms supported
T616 Null treatment option for LEAD and LAG functions
T618 NTH_VALUE function function exists, but some options missing
T619 Nested window functions
T641 Multiple column assignment only some syntax variants supported
T652 SQL-dynamic statements in SQL routines
T653 SQL-schema statements in external routines
T654 SQL-dynamic statements in external routines
M001 Datalinks
M002 Datalinks via SQL/CLI
M003 Datalinks via Embedded SQL
M004 Foreign data support partially supported
M005 Foreign schema support
M006 GetSQLString routine
M007 TransmitRequest
M009 GetOpts and GetStatistics routines
M010 Foreign data wrapper support different API
M011 Datalinks via Ada
M012 Datalinks via C
M013 Datalinks via COBOL
M014 Datalinks via Fortran
M015 Datalinks via M
M016 Datalinks via Pascal
M017 Datalinks via PL/I
M018 Foreign data wrapper interface routines in Ada
M019 Foreign data wrapper interface routines in C different API
M020 Foreign data wrapper interface routines in COBOL
M021 Foreign data wrapper interface routines in Fortran
M022 Foreign data wrapper interface routines in MUMPS
M023 Foreign data wrapper interface routines in Pascal
M024 Foreign data wrapper interface routines in PL/I
M030 SQL-server foreign data support
M031 Foreign data wrapper general routines
X012 Multisets of XML type
X013 Distinct types of XML type
X015 Fields of XML type
X025 XMLCast
X030 XMLDocument
X038 XMLText
X065 XMLParse: BLOB input and CONTENT option
X066 XMLParse: BLOB input and DOCUMENT option
X068 XMLSerialize: BOM
X069 XMLSerialize: INDENT
X073 XMLSerialize: BLOB serialization and CONTENT option
X074 XMLSerialize: BLOB serialization and DOCUMENT option
X075 XMLSerialize: BLOB serialization
X076 XMLSerialize: VERSION
X077 XMLSerialize: explicit ENCODING option
X078 XMLSerialize: explicit XML declaration
X080 Namespaces in XML publishing
X081 Query-level XML namespace declarations
X082 XML namespace declarations in DML
X083 XML namespace declarations in DDL
X084 XML namespace declarations in compound statements
X085 Predefined namespace prefixes
X086 XML namespace declarations in XMLTable
X091 XML content predicate
X096 XMLExists XPath 1.0 only
X100 Host language support for XML: CONTENT option
X101 Host language support for XML: DOCUMENT option
X110 Host language support for XML: VARCHAR mapping
X111 Host language support for XML: CLOB mapping
X112 Host language support for XML: BLOB mapping
X113 Host language support for XML: STRIP WHITESPACE option
X114 Host language support for XML: PRESERVE WHITESPACE option
X131 Query-level XMLBINARY clause
X132 XMLBINARY clause in DML
X133 XMLBINARY clause in DDL
X134 XMLBINARY clause in compound statements
X135 XMLBINARY clause in subqueries
X141 IS VALID predicate: data-driven case
X142 IS VALID predicate: ACCORDING TO clause
X143 IS VALID predicate: ELEMENT clause
X144 IS VALID predicate: schema location
X145 IS VALID predicate outside check constraints
X151 IS VALID predicate with DOCUMENT option
X152 IS VALID predicate with CONTENT option
X153 IS VALID predicate with SEQUENCE option
X155 IS VALID predicate: NAMESPACE without ELEMENT clause
X157 IS VALID predicate: NO NAMESPACE with ELEMENT clause
X160 Basic Information Schema for registered XML Schemas
X161 Advanced Information Schema for registered XML Schemas
X170 XML null handling options
X200 XMLQuery
X203 XMLQuery: passing a context item
X204 XMLQuery: initializing an XQuery variable
X205 XMLQuery: EMPTY ON EMPTY option
X206 XMLQuery: NULL ON EMPTY option
X211 XML 1.1 support
X221 XML passing mechanism BY VALUE
X241 RETURNING CONTENT in XML publishing
X251 Persistent XML values of XML(DOCUMENT(UNTYPED)) type
X252 Persistent XML values of XML(DOCUMENT(ANY)) type
X253 Persistent XML values of XML(CONTENT(UNTYPED)) type
X254 Persistent XML values of XML(CONTENT(ANY)) type
X255 Persistent XML values of XML(SEQUENCE) type
X256 Persistent XML values of XML(DOCUMENT(XMLSCHEMA)) type
X257 Persistent XML values of XML(CONTENT(XMLSCHEMA)) type
X260 XML type: ELEMENT clause
X261 XML type: NAMESPACE without ELEMENT clause
X263 XML type: NO NAMESPACE with ELEMENT clause
X264 XML type: schema location
X271 XMLValidate: data-driven case
X272 XMLValidate: ACCORDING TO clause
X273 XMLValidate: ELEMENT clause
X274 XMLValidate: schema location
X281 XMLValidate with DOCUMENT option
X282 XMLValidate with CONTENT option
X283 XMLValidate with SEQUENCE option
X284 XMLValidate: NAMESPACE without ELEMENT clause
X286 XMLValidate: NO NAMESPACE with ELEMENT clause
X300 XMLTable XPath 1.0 only
X305 XMLTable: initializing an XQuery variable