Location via proxy:   [ UP ]  
[Report a bug]   [Manage cookies]                
Skip to content

Commit ee8ed85

Browse files
peterepetere
committed
Make LANCOMPILER clause in CREATE LANGUAGE optional. Allow "identifier"
syntax for language names (instead of 'string'). createlang now handles the case where a second language uses the same call handler as an already installed language (e.g., plperl/plperlu). droplang now handles the reverse case, i.e., dropping a language where the call handler is still used by another language. Moreover, droplang can now be used to drop any user-defined language, not just the supplied ones.
1 parent 38cfc95 commit ee8ed85

File tree

7 files changed

+118
-123
lines changed

7 files changed

+118
-123
lines changed

‎doc/src/sgml/ref/create_function.sgml

Lines changed: 12 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.24 2001/06/04 23:27:23 momjian Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.25 2001/08/13 21:34:51 petere Exp $
33
-->
44

55
<refentry id="SQL-CREATEFUNCTION">
@@ -18,12 +18,12 @@ $Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.24 2001/06/04
1818
CREATE FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">argtype</replaceable> [, ...] ] )
1919
RETURNS <replaceable class="parameter">rettype</replaceable>
2020
AS '<replaceable class="parameter">definition</replaceable>'
21-
LANGUAGE '<replaceable class="parameter">langname</replaceable>'
21+
LANGUAGE <replaceable class="parameter">langname</replaceable>
2222
[ WITH ( <replaceable class="parameter">attribute</replaceable> [, ...] ) ]
2323
CREATE FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceable class="parameter">argtype</replaceable> [, ...] ] )
2424
RETURNS <replaceable class="parameter">rettype</replaceable>
2525
AS '<replaceable class="parameter">obj_file</replaceable>', '<replaceable class="parameter">link_symbol</replaceable>'
26-
LANGUAGE '<replaceable class="parameter">langname</replaceable>'
26+
LANGUAGE <replaceable class="parameter">langname</replaceable>
2727
[ WITH ( <replaceable class="parameter">attribute</replaceable> [, ...] ) ]
2828
</synopsis>
2929
</refsynopsisdiv>
@@ -123,13 +123,14 @@ CREATE FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceab
123123

124124
<listitem>
125125
<para>
126-
May be '<literal>sql</literal>', '<literal>C</literal>',
127-
'<literal>internal</literal>', or '<replaceable
128-
class="parameter">plname</replaceable>', where '<replaceable
129-
class="parameter">plname</replaceable>' is the name of a
126+
May be <literal>SQL</literal>, <literal>C</literal>,
127+
<literal>internal</literal>, or <replaceable
128+
class="parameter">plname</replaceable>, where <replaceable
129+
class="parameter">plname</replaceable> is the name of a
130130
created procedural language. See
131131
<xref linkend="sql-createlanguage">
132-
for details.
132+
for details. For backward compatibility, the name may be
133+
enclosed by single quotes.
133134
</para>
134135
</listitem>
135136
</varlistentry>
@@ -261,7 +262,7 @@ CREATE FUNCTION <replaceable class="parameter">name</replaceable> ( [ <replaceab
261262
<programlisting>
262263
CREATE FUNCTION one() RETURNS integer
263264
AS 'SELECT 1 AS RESULT;'
264-
LANGUAGE 'sql';
265+
LANGUAGE SQL;
265266

266267
SELECT one() AS answer;
267268
<computeroutput>
@@ -281,7 +282,7 @@ SELECT one() AS answer;
281282

282283
<programlisting>
283284
CREATE FUNCTION ean_checkdigit(char, char) RETURNS boolean
284-
AS '/usr1/proj/bray/sql/funcs.so' LANGUAGE 'c';
285+
AS '/usr1/proj/bray/sql/funcs.so' LANGUAGE C;
285286

286287
CREATE TABLE product (
287288
id char(8) PRIMARY KEY,
@@ -306,7 +307,7 @@ CREATE TABLE product (
306307
<programlisting>
307308
CREATE FUNCTION point(complex) RETURNS point
308309
AS '/home/bernie/pgsql/lib/complex.so', 'complex_to_point'
309-
LANGUAGE 'c';
310+
LANGUAGE C;
310311
</programlisting>
311312

312313
The C declaration of the function could be:

‎doc/src/sgml/ref/create_language.sgml

Lines changed: 9 additions & 21 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_language.sgml,v 1.14 2000/11/20 20:36:46 tgl Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_language.sgml,v 1.15 2001/08/13 21:34:51 petere Exp $
33
Postgres documentation
44
-->
55

@@ -23,9 +23,8 @@ Postgres documentation
2323
<date>1999-07-20</date>
2424
</refsynopsisdivinfo>
2525
<synopsis>
26-
CREATE [ TRUSTED ] [ PROCEDURAL ] LANGUAGE '<replaceable class="parameter">langname</replaceable>'
26+
CREATE [ TRUSTED ] [ PROCEDURAL ] LANGUAGE <replaceable class="parameter">langname</replaceable>
2727
HANDLER <replaceable class="parameter">call_handler</replaceable>
28-
LANCOMPILER '<replaceable class="parameter">comment</replaceable>'
2928
</synopsis>
3029

3130
<refsect2 id="R2-SQL-CREATELANGUAGE-1">
@@ -62,6 +61,10 @@ CREATE [ TRUSTED ] [ PROCEDURAL ] LANGUAGE '<replaceable class="parameter">langn
6261
language cannot override one of the built-in languages of
6362
<productname>Postgres</productname>.
6463
</para>
64+
<para>
65+
For backward compatibility, the name may be enclosed by single
66+
quotes.
67+
</para>
6568
</listitem>
6669
</varlistentry>
6770

@@ -77,20 +80,6 @@ CREATE [ TRUSTED ] [ PROCEDURAL ] LANGUAGE '<replaceable class="parameter">langn
7780
</listitem>
7881
</varlistentry>
7982

80-
<varlistentry>
81-
<term><replaceable class="parameter">comment</replaceable></term>
82-
<listitem>
83-
<para>
84-
The <function>LANCOMPILER</function> argument is the
85-
string that will be
86-
inserted in the <literal>LANCOMPILER</literal> attribute
87-
of the new
88-
<filename>pg_language</filename> entry. At present,
89-
<productname>Postgres</productname> does not use
90-
this attribute in any way.
91-
</para>
92-
</listitem>
93-
</varlistentry>
9483
</variablelist>
9584
</para>
9685

@@ -346,10 +335,9 @@ plsample_call_handler(PG_FUNCTION_ARGS)
346335
<programlisting>
347336
CREATE FUNCTION plsample_call_handler () RETURNS opaque
348337
AS '/usr/local/pgsql/lib/plsample.so'
349-
LANGUAGE 'C';
350-
CREATE PROCEDURAL LANGUAGE 'plsample'
351-
HANDLER plsample_call_handler
352-
LANCOMPILER 'PL/Sample';
338+
LANGUAGE C;
339+
CREATE LANGUAGE plsample
340+
HANDLER plsample_call_handler;
353341
</programlisting>
354342
</para>
355343
</refsect1>

‎doc/src/sgml/ref/drop_language.sgml

Lines changed: 5 additions & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_language.sgml,v 1.9 2000/12/25 23:15:26 petere Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/ref/drop_language.sgml,v 1.10 2001/08/13 21:34:51 petere Exp $
33
Postgres documentation
44
-->
55

@@ -23,7 +23,7 @@ Postgres documentation
2323
<date>1999-07-20</date>
2424
</refsynopsisdivinfo>
2525
<synopsis>
26-
DROP [ PROCEDURAL ] LANGUAGE '<replaceable class="PARAMETER">name</replaceable>'
26+
DROP [ PROCEDURAL ] LANGUAGE <replaceable class="PARAMETER">name</replaceable>
2727
</synopsis>
2828

2929
<refsect2 id="R2-SQL-DROPLANGUAGE-1">
@@ -40,7 +40,8 @@ DROP [ PROCEDURAL ] LANGUAGE '<replaceable class="PARAMETER">name</replaceable>'
4040
<term><replaceable class="PARAMETER">name</replaceable></term>
4141
<listitem>
4242
<para>
43-
The name of an existing procedural language.
43+
The name of an existing procedural language. For backward
44+
compatibility, the name may be enclosed by single quotes.
4445
</para>
4546
</listitem>
4647
</varlistentry>
@@ -132,7 +133,7 @@ ERROR: Language "<replaceable class="parameter">name</replaceable>" doesn't exis
132133
This command removes the PL/Sample language:
133134

134135
<programlisting>
135-
DROP PROCEDURAL LANGUAGE 'plsample';
136+
DROP LANGUAGE plsample;
136137
</programlisting>
137138
</para>
138139
</refsect1>

‎doc/src/sgml/xplang.sgml

Lines changed: 7 additions & 9 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,5 @@
11
<!--
2-
$Header: /cvsroot/pgsql/doc/src/sgml/xplang.sgml,v 1.13 2001/05/19 09:01:10 petere Exp $
2+
$Header: /cvsroot/pgsql/doc/src/sgml/xplang.sgml,v 1.14 2001/08/13 21:34:51 petere Exp $
33
-->
44

55
<chapter id="xplang">
@@ -79,7 +79,7 @@ createlang plpgsql template1
7979
<synopsis>
8080
CREATE FUNCTION <replaceable>handler_function_name</replaceable> ()
8181
RETURNS OPAQUE AS
82-
'<replaceable>path-to-shared-object</replaceable>' LANGUAGE 'C';
82+
'<replaceable>path-to-shared-object</replaceable>' LANGUAGE C;
8383
</synopsis>
8484
The special return type of <type>OPAQUE</type> tells
8585
the database that this function does not return one of
@@ -92,9 +92,8 @@ CREATE FUNCTION <replaceable>handler_function_name</replaceable> ()
9292
<para>
9393
The PL must be declared with the command
9494
<synopsis>
95-
CREATE <optional>TRUSTED</optional> <optional>PROCEDURAL</optional> LANGUAGE '<replaceable>language-name</replaceable>'
96-
HANDLER <replaceable>handler_function_name</replaceable>
97-
LANCOMPILER '<replaceable>description</replaceable>';
95+
CREATE <optional>TRUSTED</optional> <optional>PROCEDURAL</optional> LANGUAGE <replaceable>language-name</replaceable>
96+
HANDLER <replaceable>handler_function_name</replaceable>;
9897
</synopsis>
9998
The optional key word <token>TRUSTED</token> tells
10099
whether ordinary database users that have no superuser
@@ -130,7 +129,7 @@ CREATE <optional>TRUSTED</optional> <optional>PROCEDURAL</optional> LANGUAGE '<r
130129

131130
<programlisting>
132131
CREATE FUNCTION plpgsql_call_handler () RETURNS OPAQUE AS
133-
'$libdir/plpgsql' LANGUAGE 'C';
132+
'$libdir/plpgsql' LANGUAGE C;
134133
</programlisting>
135134
</para>
136135
</step>
@@ -139,9 +138,8 @@ CREATE FUNCTION plpgsql_call_handler () RETURNS OPAQUE AS
139138
<para>
140139
The command
141140
<programlisting>
142-
CREATE TRUSTED PROCEDURAL LANGUAGE 'plpgsql'
143-
HANDLER plpgsql_call_handler
144-
LANCOMPILER 'PL/pgSQL';
141+
CREATE TRUSTED PROCEDURAL LANGUAGE plpgsql
142+
HANDLER plpgsql_call_handler;
145143
</programlisting>
146144
then defines that the previously declared call handler function
147145
should be invoked for functions and trigger procedures where the

‎src/backend/parser/gram.y

Lines changed: 12 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -11,7 +11,7 @@
1111
*
1212
*
1313
* IDENTIFICATION
14-
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.243 2001/08/10 18:57:36 tgl Exp $
14+
* $Header: /cvsroot/pgsql/src/backend/parser/gram.y,v 2.244 2001/08/13 21:34:51 petere Exp $
1515
*
1616
* HISTORY
1717
* AUTHOR DATE MAJOR EVENT
@@ -163,7 +163,8 @@ static void doNegateFloat(Value *v);
163163
%type <list> OptUserList
164164
%type <defelt> OptUserElem
165165

166-
%type <boolean> TriggerActionTime, TriggerForSpec, PLangTrusted, opt_procedural
166+
%type <boolean> TriggerActionTime, TriggerForSpec, opt_trusted, opt_procedural
167+
%type <str> opt_lancompiler
167168

168169
%type <str> OptConstrFromTable
169170

@@ -1688,23 +1689,26 @@ IntegerOnly: Iconst
16881689
*
16891690
*****************************************************************************/
16901691

1691-
CreatePLangStmt: CREATE PLangTrusted opt_procedural LANGUAGE Sconst
1692-
HANDLER func_name LANCOMPILER Sconst
1692+
CreatePLangStmt: CREATE opt_trusted opt_procedural LANGUAGE ColId_or_Sconst
1693+
HANDLER func_name opt_lancompiler
16931694
{
16941695
CreatePLangStmt *n = makeNode(CreatePLangStmt);
16951696
n->plname = $5;
16961697
n->plhandler = $7;
1697-
n->plcompiler = $9;
1698+
n->plcompiler = $8;
16981699
n->pltrusted = $2;
16991700
$$ = (Node *)n;
17001701
}
17011702
;
17021703

1703-
PLangTrusted: TRUSTED { $$ = TRUE; }
1704+
opt_trusted: TRUSTED { $$ = TRUE; }
17041705
| /*EMPTY*/ { $$ = FALSE; }
17051706
;
17061707

1707-
DropPLangStmt: DROP opt_procedural LANGUAGE Sconst
1708+
opt_lancompiler: LANCOMPILER Sconst { $$ = $2; }
1709+
| /*EMPTY*/ { $$ = ""; }
1710+
1711+
DropPLangStmt: DROP opt_procedural LANGUAGE ColId_or_Sconst
17081712
{
17091713
DropPLangStmt *n = makeNode(DropPLangStmt);
17101714
n->plname = $4;
@@ -2511,7 +2515,7 @@ RecipeStmt: EXECUTE RECIPE recipe_name
25112515
*****************************************************************************/
25122516

25132517
ProcedureStmt: CREATE FUNCTION func_name func_args
2514-
RETURNS func_return AS func_as LANGUAGE Sconst opt_with
2518+
RETURNS func_return AS func_as LANGUAGE ColId_or_Sconst opt_with
25152519
{
25162520
ProcedureStmt *n = makeNode(ProcedureStmt);
25172521
n->funcname = $3;

0 commit comments

Comments
 (0)