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Now we are able to CREATE PROCEDURAL LANGUAGE (Thanks, Jan).

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This commit is contained in:
Vadim B. Mikheev
1997-10-28 15:11:45 +00:00
parent 9db2992640
commit 7bff4c5078
16 changed files with 638 additions and 145 deletions
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53
src/backend/commands/define.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.16 1997/09/08 21:42:38 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/commands/define.c,v 1.17 1997/10/28 14:54:46 vadim Exp $
*
* DESCRIPTION
* The "DefineFoo" routines take the parse tree and pick out the
@ -45,6 +45,7 @@
#include <catalog/pg_operator.h>
#include <catalog/pg_proc.h>
#include <catalog/pg_type.h>
#include <catalog/pg_language.h>
#include <utils/syscache.h>
#include <fmgr.h> /* for fmgr */
#include <utils/builtins.h> /* prototype for textin() */
@ -239,6 +240,8 @@ CreateFunction(ProcedureStmt *stmt, CommandDest dest)
bool canCache;
bool returnsSet;
bool lanisPL = false;
/* The function returns a set of values, as opposed to a singleton. */
@ -262,19 +265,59 @@ CreateFunction(ProcedureStmt *stmt, CommandDest dest)
}
else
{
elog(WARN,
HeapTuple languageTuple;
Form_pg_language languageStruct;
/* Lookup the language in the system cache */
languageTuple = SearchSysCacheTuple(LANNAME,
PointerGetDatum(languageName),
0, 0, 0);
if (!HeapTupleIsValid(languageTuple)) {
elog(WARN,
"Unrecognized language specified in a CREATE FUNCTION: "
"'%s'. Recognized languages are sql, C, and internal.",
"'%s'. Recognized languages are sql, C, internal "
"and the created procedural languages.",
languageName);
}
/* Check that this language is a PL */
languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);
if (!(languageStruct->lanispl)) {
elog(WARN,
"Language '%s' isn't defined as PL", languageName);
}
/*
* Functions in untrusted procedural languages are
* restricted to be defined by postgres superusers only
*/
if (languageStruct->lanpltrusted == false && !superuser()) {
elog(WARN, "Only users with Postgres superuser privilege "
"are permitted to create a function in the '%s' "
"language.",
languageName);
}
lanisPL = true;
/*
* These are meaningless
*/
perbyte_cpu = percall_cpu = 0;
byte_pct = outin_ratio = 100;
canCache = false;
}
interpret_AS_clause(languageName, stmt->as, &prosrc_str, &probin_str);
if (strcmp(languageName, "sql") != 0 && !superuser())
if (strcmp(languageName, "sql") != 0 && lanisPL == false && !superuser())
elog(WARN,
"Only users with Postgres superuser privilege are permitted "
"to create a function "
"in the '%s' language. Others may use the 'sql' language.",
"in the '%s' language. Others may use the 'sql' language "
"or the created procedural languages.",
languageName);
/* Above does not return. */
else