Update xml2 extension for parallel query.

All functions provided by this extension are PARALLEL SAFE.

Andreas Karlsson

contrib/xml2/Makefile

@@ -4,7 +4,7 @@ MODULE_big = pgxml
 OBJS = xpath.o xslt_proc.o $(WIN32RES)
 
 EXTENSION = xml2
-DATA = xml2--1.0.sql xml2--unpackaged--1.0.sql
+DATA = xml2--1.1.sql xml2--1.0--1.1.sql xml2--unpackaged--1.0.sql
 PGFILEDESC = "xml2 - XPath querying and XSLT"
 
 REGRESS = xml2

contrib/xml2/xml2--1.0--1.1.sql

@@ -0,0 +1,18 @@
+/* contrib/xml2/xml2--1.0--1.1.sql */
+
+-- complain if script is sourced in psql, rather than via ALTER EXTENSION
+\echo Use "ALTER EXTENSION xml2 UPDATE TO '1.1'" to load this file. \quit
+
+ALTER FUNCTION xml_valid(text) PARALLEL SAFE;
+ALTER FUNCTION xml_encode_special_chars(text) PARALLEL SAFE;
+ALTER FUNCTION xpath_string(text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_nodeset(text, text, text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_number(text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_bool(text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_list(text, text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_list(text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_nodeset(text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_nodeset(text, text, text) PARALLEL SAFE;
+ALTER FUNCTION xpath_table(text, text, text, text, text) PARALLEL SAFE;
+ALTER FUNCTION xslt_process(text, text, text) PARALLEL SAFE;
+ALTER FUNCTION xslt_process(text, text) PARALLEL SAFE;

contrib/xml2/xml2--1.1.sql

@@ -1,4 +1,4 @@
-/* contrib/xml2/xml2--1.0.sql */
+/* contrib/xml2/xml2--1.1.sql */
 
 -- complain if script is sourced in psql, rather than via CREATE EXTENSION
 \echo Use "CREATE EXTENSION xml2" to load this file. \quit
@@ -8,66 +8,66 @@
 -- deprecated old name for xml_is_well_formed
 CREATE FUNCTION xml_valid(text) RETURNS bool
 AS 'xml_is_well_formed'
-LANGUAGE INTERNAL STRICT STABLE;
+LANGUAGE INTERNAL STRICT STABLE PARALLEL SAFE;
 
 CREATE FUNCTION xml_encode_special_chars(text) RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_string(text,text) RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_nodeset(text,text,text,text) RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_number(text,text) RETURNS float4
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_bool(text,text) RETURNS boolean
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 -- List function
 
 CREATE FUNCTION xpath_list(text,text,text) RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_list(text,text) RETURNS text
 AS 'SELECT xpath_list($1,$2,'','')'
-LANGUAGE SQL STRICT IMMUTABLE;
+LANGUAGE SQL STRICT IMMUTABLE PARALLEL SAFE;
 
 -- Wrapper functions for nodeset where no tags needed
 
 CREATE FUNCTION xpath_nodeset(text,text)
 RETURNS text
 AS 'SELECT xpath_nodeset($1,$2,'''','''')'
-LANGUAGE SQL STRICT IMMUTABLE;
+LANGUAGE SQL STRICT IMMUTABLE PARALLEL SAFE;
 
 CREATE FUNCTION xpath_nodeset(text,text,text)
 RETURNS text
 AS 'SELECT xpath_nodeset($1,$2,'''',$3)'
-LANGUAGE SQL STRICT IMMUTABLE;
+LANGUAGE SQL STRICT IMMUTABLE PARALLEL SAFE;
 
 -- Table function
 
 CREATE FUNCTION xpath_table(text,text,text,text,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT STABLE;
+LANGUAGE C STRICT STABLE PARALLEL SAFE;
 
 -- XSLT functions
 
 CREATE FUNCTION xslt_process(text,text,text)
 RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT VOLATILE;
+LANGUAGE C STRICT VOLATILE PARALLEL SAFE;
 
 -- the function checks for the correct argument count
 CREATE FUNCTION xslt_process(text,text)
 RETURNS text
 AS 'MODULE_PATHNAME'
-LANGUAGE C STRICT IMMUTABLE;
+LANGUAGE C STRICT IMMUTABLE PARALLEL SAFE;

contrib/xml2/xml2.control

@@ -1,6 +1,6 @@
 # xml2 extension
 comment = 'XPath querying and XSLT'
-default_version = '1.0'
+default_version = '1.1'
 module_pathname = '$libdir/pgxml'
 # non-relocatable because xml2--unpackaged--1.0.sql needs to use @extschema@
 relocatable = false