2002-04-15 07:22:04 +02:00
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/*-------------------------------------------------------------------------
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*
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* functioncmds.c
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*
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* Routines for CREATE and DROP FUNCTION commands
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*
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2002-06-20 22:29:54 +02:00
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* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
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2002-04-15 07:22:04 +02:00
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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*
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* IDENTIFICATION
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2002-07-12 20:43:19 +02:00
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* $Header: /cvsroot/pgsql/src/backend/commands/functioncmds.c,v 1.8 2002/07/12 18:43:16 tgl Exp $
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2002-04-15 07:22:04 +02:00
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*
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* DESCRIPTION
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* These routines take the parse tree and pick out the
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* appropriate arguments/flags, and pass the results to the
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* corresponding "FooDefine" routines (in src/catalog) that do
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* the actual catalog-munging. These routines also verify permission
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* of the user to execute the command.
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*
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* NOTES
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* These things must be defined and committed in the following order:
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* "create function":
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* input/output, recv/send procedures
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* "create type":
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* type
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* "create operator":
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* operators
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*
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*-------------------------------------------------------------------------
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*/
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#include "postgres.h"
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#include "access/heapam.h"
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#include "catalog/catname.h"
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2002-07-12 20:43:19 +02:00
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#include "catalog/dependency.h"
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2002-04-15 07:22:04 +02:00
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#include "catalog/namespace.h"
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#include "catalog/pg_language.h"
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#include "catalog/pg_proc.h"
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#include "catalog/pg_type.h"
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#include "commands/defrem.h"
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#include "miscadmin.h"
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#include "optimizer/cost.h"
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#include "parser/parse_func.h"
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#include "parser/parse_type.h"
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#include "utils/acl.h"
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#include "utils/lsyscache.h"
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#include "utils/syscache.h"
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/*
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* Examine the "returns" clause returnType of the CREATE FUNCTION statement
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* and return information about it as *prorettype_p and *returnsSet.
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*
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* This is more complex than the average typename lookup because we want to
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* allow a shell type to be used, or even created if the specified return type
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* doesn't exist yet. (Without this, there's no way to define the I/O procs
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* for a new type.) But SQL function creation won't cope, so error out if
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* the target language is SQL.
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*/
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static void
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compute_return_type(TypeName *returnType, Oid languageOid,
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Oid *prorettype_p, bool *returnsSet_p)
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{
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Oid rettype;
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rettype = LookupTypeName(returnType);
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if (OidIsValid(rettype))
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{
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if (!get_typisdefined(rettype))
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{
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if (languageOid == SQLlanguageId)
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elog(ERROR, "SQL functions cannot return shell types");
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else
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elog(WARNING, "Return type \"%s\" is only a shell",
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TypeNameToString(returnType));
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}
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}
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else
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{
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char *typnam = TypeNameToString(returnType);
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if (strcmp(typnam, "opaque") == 0)
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rettype = InvalidOid;
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else
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{
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Oid namespaceId;
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2002-04-27 05:45:03 +02:00
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AclResult aclresult;
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2002-04-15 07:22:04 +02:00
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char *typname;
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if (languageOid == SQLlanguageId)
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elog(ERROR, "Type \"%s\" does not exist", typnam);
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elog(WARNING, "ProcedureCreate: type %s is not yet defined",
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typnam);
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namespaceId = QualifiedNameGetCreationNamespace(returnType->names,
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&typname);
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2002-04-27 05:45:03 +02:00
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aclresult = pg_namespace_aclcheck(namespaceId, GetUserId(),
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ACL_CREATE);
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if (aclresult != ACLCHECK_OK)
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aclcheck_error(aclresult, get_namespace_name(namespaceId));
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2002-04-15 07:22:04 +02:00
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rettype = TypeShellMake(typname, namespaceId);
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if (!OidIsValid(rettype))
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elog(ERROR, "could not create type %s", typnam);
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}
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}
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*prorettype_p = rettype;
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*returnsSet_p = returnType->setof;
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}
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/*
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* Interpret the argument-types list of the CREATE FUNCTION statement.
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*/
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static int
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compute_parameter_types(List *argTypes, Oid languageOid,
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Oid *parameterTypes)
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{
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int parameterCount = 0;
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List *x;
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MemSet(parameterTypes, 0, FUNC_MAX_ARGS * sizeof(Oid));
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foreach(x, argTypes)
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{
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TypeName *t = (TypeName *) lfirst(x);
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Oid toid;
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if (parameterCount >= FUNC_MAX_ARGS)
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elog(ERROR, "functions cannot have more than %d arguments",
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FUNC_MAX_ARGS);
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toid = LookupTypeName(t);
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if (OidIsValid(toid))
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{
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if (!get_typisdefined(toid))
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elog(WARNING, "Argument type \"%s\" is only a shell",
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TypeNameToString(t));
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}
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else
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{
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char *typnam = TypeNameToString(t);
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if (strcmp(typnam, "opaque") == 0)
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{
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if (languageOid == SQLlanguageId)
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elog(ERROR, "SQL functions cannot have arguments of type \"opaque\"");
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toid = InvalidOid;
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}
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else
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elog(ERROR, "Type \"%s\" does not exist", typnam);
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}
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if (t->setof)
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elog(ERROR, "functions cannot accept set arguments");
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parameterTypes[parameterCount++] = toid;
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}
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return parameterCount;
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}
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2002-05-17 20:32:52 +02:00
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/*
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* Dissect the list of options assembled in gram.y into function
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* attributes.
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*/
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static void
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compute_attributes_sql_style(const List *options,
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List **as,
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char **language,
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char *volatility_p,
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bool *strict_p,
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bool *security_definer,
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bool *implicit_cast)
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{
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const List *option;
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DefElem *as_item = NULL;
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DefElem *language_item = NULL;
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DefElem *volatility_item = NULL;
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DefElem *strict_item = NULL;
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DefElem *security_item = NULL;
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DefElem *implicit_item = NULL;
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foreach(option, options)
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{
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DefElem *defel = (DefElem *) lfirst(option);
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if (strcmp(defel->defname, "as")==0)
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{
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if (as_item)
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elog(ERROR, "conflicting or redundant options");
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as_item = defel;
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}
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else if (strcmp(defel->defname, "language")==0)
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{
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if (language_item)
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elog(ERROR, "conflicting or redundant options");
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language_item = defel;
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}
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else if (strcmp(defel->defname, "volatility")==0)
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{
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if (volatility_item)
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elog(ERROR, "conflicting or redundant options");
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volatility_item = defel;
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}
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else if (strcmp(defel->defname, "strict")==0)
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{
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if (strict_item)
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elog(ERROR, "conflicting or redundant options");
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strict_item = defel;
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}
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else if (strcmp(defel->defname, "security")==0)
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{
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if (security_item)
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elog(ERROR, "conflicting or redundant options");
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security_item = defel;
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}
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else if (strcmp(defel->defname, "implicit")==0)
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{
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if (implicit_item)
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elog(ERROR, "conflicting or redundant options");
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implicit_item = defel;
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}
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else
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elog(ERROR, "invalid CREATE FUNCTION option");
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}
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if (as_item)
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*as = (List *)as_item->arg;
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else
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elog(ERROR, "no function body specified");
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if (language_item)
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*language = strVal(language_item->arg);
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else
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elog(ERROR, "no language specified");
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if (volatility_item)
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{
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if (strcmp(strVal(volatility_item->arg), "immutable")==0)
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*volatility_p = PROVOLATILE_IMMUTABLE;
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else if (strcmp(strVal(volatility_item->arg), "stable")==0)
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*volatility_p = PROVOLATILE_STABLE;
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else if (strcmp(strVal(volatility_item->arg), "volatile")==0)
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*volatility_p = PROVOLATILE_VOLATILE;
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else
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elog(ERROR, "invalid volatility");
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}
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if (strict_item)
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*strict_p = intVal(strict_item->arg);
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if (security_item)
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*security_definer = intVal(security_item->arg);
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if (implicit_item)
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*implicit_cast = intVal(implicit_item->arg);
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}
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2002-04-15 07:22:04 +02:00
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/*-------------
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* Interpret the parameters *parameters and return their contents as
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* *byte_pct_p, etc.
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*
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* These parameters supply optional information about a function.
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* All have defaults if not specified.
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*
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* Note: currently, only three of these parameters actually do anything:
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*
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* * isImplicit means the function may be used as an implicit type
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* coercion.
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*
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* * isStrict means the function should not be called when any NULL
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* inputs are present; instead a NULL result value should be assumed.
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*
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* * volatility tells the optimizer whether the function's result can
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* be assumed to be repeatable over multiple evaluations.
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*
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* The other four parameters are not used anywhere. They used to be
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* used in the "expensive functions" optimizer, but that's been dead code
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* for a long time.
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*------------
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*/
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static void
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2002-05-17 20:32:52 +02:00
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compute_attributes_with_style(List *parameters,
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int32 *byte_pct_p, int32 *perbyte_cpu_p,
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int32 *percall_cpu_p, int32 *outin_ratio_p,
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bool *isImplicit_p, bool *isStrict_p,
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char *volatility_p)
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2002-04-15 07:22:04 +02:00
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{
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List *pl;
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foreach(pl, parameters)
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{
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DefElem *param = (DefElem *) lfirst(pl);
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if (strcasecmp(param->defname, "implicitcoercion") == 0)
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*isImplicit_p = true;
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else if (strcasecmp(param->defname, "isstrict") == 0)
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*isStrict_p = true;
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else if (strcasecmp(param->defname, "isimmutable") == 0)
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*volatility_p = PROVOLATILE_IMMUTABLE;
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else if (strcasecmp(param->defname, "isstable") == 0)
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*volatility_p = PROVOLATILE_STABLE;
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else if (strcasecmp(param->defname, "isvolatile") == 0)
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*volatility_p = PROVOLATILE_VOLATILE;
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else if (strcasecmp(param->defname, "iscachable") == 0)
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{
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/* obsolete spelling of isImmutable */
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*volatility_p = PROVOLATILE_IMMUTABLE;
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}
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else if (strcasecmp(param->defname, "trusted") == 0)
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{
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/*
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* we don't have untrusted functions any more. The 4.2
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* implementation is lousy anyway so I took it out. -ay 10/94
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*/
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elog(ERROR, "untrusted function has been decommissioned.");
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}
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else if (strcasecmp(param->defname, "byte_pct") == 0)
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*byte_pct_p = (int) defGetNumeric(param);
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else if (strcasecmp(param->defname, "perbyte_cpu") == 0)
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*perbyte_cpu_p = (int) defGetNumeric(param);
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else if (strcasecmp(param->defname, "percall_cpu") == 0)
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*percall_cpu_p = (int) defGetNumeric(param);
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else if (strcasecmp(param->defname, "outin_ratio") == 0)
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*outin_ratio_p = (int) defGetNumeric(param);
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else
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elog(WARNING, "Unrecognized function attribute '%s' ignored",
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param->defname);
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}
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}
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/*
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* For a dynamically linked C language object, the form of the clause is
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*
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* AS <object file name> [, <link symbol name> ]
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*
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* In all other cases
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*
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* AS <object reference, or sql code>
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*
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*/
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static void
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interpret_AS_clause(Oid languageOid, const char *languageName, const List *as,
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char **prosrc_str_p, char **probin_str_p)
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{
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Assert(as != NIL);
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if (languageOid == ClanguageId)
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{
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/*
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* For "C" language, store the file name in probin and, when
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* given, the link symbol name in prosrc.
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*/
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*probin_str_p = strVal(lfirst(as));
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if (lnext(as) == NULL)
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*prosrc_str_p = "-";
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else
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*prosrc_str_p = strVal(lsecond(as));
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}
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else
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{
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/* Everything else wants the given string in prosrc. */
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*prosrc_str_p = strVal(lfirst(as));
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*probin_str_p = "-";
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|
|
if (lnext(as) != NIL)
|
|
|
|
elog(ERROR, "CREATE FUNCTION: only one AS item needed for %s language",
|
|
|
|
languageName);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* CreateFunction
|
|
|
|
* Execute a CREATE FUNCTION utility statement.
|
|
|
|
*/
|
|
|
|
void
|
2002-05-17 20:32:52 +02:00
|
|
|
CreateFunction(CreateFunctionStmt *stmt)
|
2002-04-15 07:22:04 +02:00
|
|
|
{
|
|
|
|
char *probin_str;
|
|
|
|
char *prosrc_str;
|
|
|
|
Oid prorettype;
|
|
|
|
bool returnsSet;
|
2002-05-17 20:32:52 +02:00
|
|
|
char *language;
|
2002-04-15 07:22:04 +02:00
|
|
|
char languageName[NAMEDATALEN];
|
|
|
|
Oid languageOid;
|
2002-05-22 19:21:02 +02:00
|
|
|
Oid languageValidator;
|
2002-04-15 07:22:04 +02:00
|
|
|
char *funcname;
|
|
|
|
Oid namespaceId;
|
2002-04-27 05:45:03 +02:00
|
|
|
AclResult aclresult;
|
2002-04-15 07:22:04 +02:00
|
|
|
int parameterCount;
|
|
|
|
Oid parameterTypes[FUNC_MAX_ARGS];
|
|
|
|
int32 byte_pct,
|
|
|
|
perbyte_cpu,
|
|
|
|
percall_cpu,
|
|
|
|
outin_ratio;
|
|
|
|
bool isImplicit,
|
2002-05-17 20:32:52 +02:00
|
|
|
isStrict,
|
|
|
|
security;
|
2002-04-15 07:22:04 +02:00
|
|
|
char volatility;
|
|
|
|
HeapTuple languageTuple;
|
|
|
|
Form_pg_language languageStruct;
|
2002-05-17 20:32:52 +02:00
|
|
|
List *as_clause;
|
2002-04-15 07:22:04 +02:00
|
|
|
|
|
|
|
/* Convert list of names to a name and namespace */
|
|
|
|
namespaceId = QualifiedNameGetCreationNamespace(stmt->funcname,
|
|
|
|
&funcname);
|
|
|
|
|
2002-04-27 05:45:03 +02:00
|
|
|
/* Check we have creation rights in target namespace */
|
|
|
|
aclresult = pg_namespace_aclcheck(namespaceId, GetUserId(), ACL_CREATE);
|
|
|
|
if (aclresult != ACLCHECK_OK)
|
|
|
|
aclcheck_error(aclresult, get_namespace_name(namespaceId));
|
|
|
|
|
2002-05-17 20:32:52 +02:00
|
|
|
/* defaults attributes */
|
|
|
|
byte_pct = BYTE_PCT;
|
|
|
|
perbyte_cpu = PERBYTE_CPU;
|
|
|
|
percall_cpu = PERCALL_CPU;
|
|
|
|
outin_ratio = OUTIN_RATIO;
|
|
|
|
isImplicit = false;
|
|
|
|
isStrict = false;
|
2002-05-18 15:48:01 +02:00
|
|
|
security = false;
|
2002-05-17 20:32:52 +02:00
|
|
|
volatility = PROVOLATILE_VOLATILE;
|
|
|
|
|
|
|
|
/* override attributes from explicit list */
|
|
|
|
compute_attributes_sql_style(stmt->options,
|
|
|
|
&as_clause, &language, &volatility, &isStrict, &security, &isImplicit);
|
|
|
|
|
2002-04-15 07:22:04 +02:00
|
|
|
/* Convert language name to canonical case */
|
2002-05-17 20:32:52 +02:00
|
|
|
case_translate_language_name(language, languageName);
|
2002-04-15 07:22:04 +02:00
|
|
|
|
|
|
|
/* Look up the language and validate permissions */
|
|
|
|
languageTuple = SearchSysCache(LANGNAME,
|
|
|
|
PointerGetDatum(languageName),
|
|
|
|
0, 0, 0);
|
|
|
|
if (!HeapTupleIsValid(languageTuple))
|
|
|
|
elog(ERROR, "language \"%s\" does not exist", languageName);
|
|
|
|
|
|
|
|
languageOid = languageTuple->t_data->t_oid;
|
|
|
|
languageStruct = (Form_pg_language) GETSTRUCT(languageTuple);
|
|
|
|
|
2002-04-27 05:45:03 +02:00
|
|
|
if (languageStruct->lanpltrusted)
|
|
|
|
{
|
|
|
|
/* if trusted language, need USAGE privilege */
|
|
|
|
AclResult aclresult;
|
|
|
|
|
|
|
|
aclresult = pg_language_aclcheck(languageOid, GetUserId(), ACL_USAGE);
|
|
|
|
if (aclresult != ACLCHECK_OK)
|
|
|
|
aclcheck_error(aclresult, NameStr(languageStruct->lanname));
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* if untrusted language, must be superuser */
|
|
|
|
if (!superuser())
|
|
|
|
aclcheck_error(ACLCHECK_NO_PRIV, NameStr(languageStruct->lanname));
|
|
|
|
}
|
2002-04-15 07:22:04 +02:00
|
|
|
|
2002-05-22 19:21:02 +02:00
|
|
|
languageValidator = languageStruct->lanvalidator;
|
|
|
|
|
2002-04-15 07:22:04 +02:00
|
|
|
ReleaseSysCache(languageTuple);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Convert remaining parameters of CREATE to form wanted by
|
|
|
|
* ProcedureCreate.
|
|
|
|
*/
|
|
|
|
compute_return_type(stmt->returnType, languageOid,
|
|
|
|
&prorettype, &returnsSet);
|
|
|
|
|
|
|
|
parameterCount = compute_parameter_types(stmt->argTypes, languageOid,
|
|
|
|
parameterTypes);
|
|
|
|
|
2002-05-17 20:32:52 +02:00
|
|
|
compute_attributes_with_style(stmt->withClause,
|
|
|
|
&byte_pct, &perbyte_cpu, &percall_cpu,
|
|
|
|
&outin_ratio, &isImplicit, &isStrict,
|
|
|
|
&volatility);
|
2002-04-15 07:22:04 +02:00
|
|
|
|
2002-05-17 20:32:52 +02:00
|
|
|
interpret_AS_clause(languageOid, languageName, as_clause,
|
2002-04-15 07:22:04 +02:00
|
|
|
&prosrc_str, &probin_str);
|
|
|
|
|
2002-05-22 19:21:02 +02:00
|
|
|
if (languageOid == INTERNALlanguageId)
|
|
|
|
{
|
|
|
|
/*
|
|
|
|
* In PostgreSQL versions before 6.5, the SQL name of the
|
|
|
|
* created function could not be different from the internal
|
|
|
|
* name, and "prosrc" wasn't used. So there is code out there
|
|
|
|
* that does CREATE FUNCTION xyz AS '' LANGUAGE 'internal'.
|
|
|
|
* To preserve some modicum of backwards compatibility, accept
|
|
|
|
* an empty "prosrc" value as meaning the supplied SQL
|
|
|
|
* function name.
|
|
|
|
*/
|
|
|
|
if (strlen(prosrc_str) == 0)
|
|
|
|
prosrc_str = funcname;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (languageOid == ClanguageId)
|
|
|
|
{
|
|
|
|
/* If link symbol is specified as "-", substitute procedure name */
|
|
|
|
if (strcmp(prosrc_str, "-") == 0)
|
|
|
|
prosrc_str = funcname;
|
|
|
|
}
|
|
|
|
|
2002-04-15 07:22:04 +02:00
|
|
|
/*
|
|
|
|
* And now that we have all the parameters, and know we're permitted
|
|
|
|
* to do so, go ahead and create the function.
|
|
|
|
*/
|
|
|
|
ProcedureCreate(funcname,
|
|
|
|
namespaceId,
|
|
|
|
stmt->replace,
|
|
|
|
returnsSet,
|
|
|
|
prorettype,
|
|
|
|
languageOid,
|
2002-05-22 19:21:02 +02:00
|
|
|
languageValidator,
|
2002-04-15 07:22:04 +02:00
|
|
|
prosrc_str, /* converted to text later */
|
|
|
|
probin_str, /* converted to text later */
|
|
|
|
false, /* not an aggregate */
|
2002-05-18 15:48:01 +02:00
|
|
|
security,
|
2002-04-15 07:22:04 +02:00
|
|
|
isImplicit,
|
|
|
|
isStrict,
|
|
|
|
volatility,
|
|
|
|
byte_pct,
|
|
|
|
perbyte_cpu,
|
|
|
|
percall_cpu,
|
|
|
|
outin_ratio,
|
|
|
|
parameterCount,
|
|
|
|
parameterTypes);
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
* RemoveFunction
|
|
|
|
* Deletes a function.
|
|
|
|
*/
|
|
|
|
void
|
2002-07-12 20:43:19 +02:00
|
|
|
RemoveFunction(RemoveFuncStmt *stmt)
|
2002-04-15 07:22:04 +02:00
|
|
|
{
|
2002-07-12 20:43:19 +02:00
|
|
|
List *functionName = stmt->funcname;
|
|
|
|
List *argTypes = stmt->args; /* list of TypeName nodes */
|
2002-04-15 07:22:04 +02:00
|
|
|
Oid funcOid;
|
|
|
|
HeapTuple tup;
|
2002-07-12 20:43:19 +02:00
|
|
|
ObjectAddress object;
|
2002-04-15 07:22:04 +02:00
|
|
|
|
2002-07-12 20:43:19 +02:00
|
|
|
/*
|
|
|
|
* Find the function, do permissions and validity checks
|
|
|
|
*/
|
2002-04-15 07:22:04 +02:00
|
|
|
funcOid = LookupFuncNameTypeNames(functionName, argTypes,
|
|
|
|
true, "RemoveFunction");
|
|
|
|
|
|
|
|
tup = SearchSysCache(PROCOID,
|
|
|
|
ObjectIdGetDatum(funcOid),
|
|
|
|
0, 0, 0);
|
|
|
|
if (!HeapTupleIsValid(tup)) /* should not happen */
|
|
|
|
elog(ERROR, "RemoveFunction: couldn't find tuple for function %s",
|
|
|
|
NameListToString(functionName));
|
|
|
|
|
2002-04-27 05:45:03 +02:00
|
|
|
/* Permission check: must own func or its namespace */
|
|
|
|
if (!pg_proc_ownercheck(funcOid, GetUserId()) &&
|
|
|
|
!pg_namespace_ownercheck(((Form_pg_proc) GETSTRUCT(tup))->pronamespace,
|
|
|
|
GetUserId()))
|
|
|
|
aclcheck_error(ACLCHECK_NOT_OWNER, NameListToString(functionName));
|
2002-04-15 07:22:04 +02:00
|
|
|
|
|
|
|
if (((Form_pg_proc) GETSTRUCT(tup))->proisagg)
|
|
|
|
elog(ERROR, "RemoveFunction: function '%s' is an aggregate"
|
|
|
|
"\n\tUse DROP AGGREGATE to remove it",
|
|
|
|
NameListToString(functionName));
|
|
|
|
|
|
|
|
if (((Form_pg_proc) GETSTRUCT(tup))->prolang == INTERNALlanguageId)
|
|
|
|
{
|
|
|
|
/* "Helpful" WARNING when removing a builtin function ... */
|
|
|
|
elog(WARNING, "Removing built-in function \"%s\"",
|
|
|
|
NameListToString(functionName));
|
|
|
|
}
|
|
|
|
|
2002-07-12 20:43:19 +02:00
|
|
|
ReleaseSysCache(tup);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Do the deletion
|
|
|
|
*/
|
|
|
|
object.classId = RelOid_pg_proc;
|
|
|
|
object.objectId = funcOid;
|
|
|
|
object.objectSubId = 0;
|
|
|
|
|
|
|
|
performDeletion(&object, stmt->behavior);
|
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Guts of function deletion.
|
|
|
|
*
|
|
|
|
* Note: this is also used for aggregate deletion, since the OIDs of
|
|
|
|
* both functions and aggregates point to pg_proc.
|
|
|
|
*/
|
|
|
|
void
|
|
|
|
RemoveFunctionById(Oid funcOid)
|
|
|
|
{
|
|
|
|
Relation relation;
|
|
|
|
HeapTuple tup;
|
|
|
|
bool isagg;
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Delete the pg_proc tuple.
|
|
|
|
*/
|
|
|
|
relation = heap_openr(ProcedureRelationName, RowExclusiveLock);
|
|
|
|
|
|
|
|
tup = SearchSysCache(PROCOID,
|
|
|
|
ObjectIdGetDatum(funcOid),
|
|
|
|
0, 0, 0);
|
|
|
|
if (!HeapTupleIsValid(tup)) /* should not happen */
|
|
|
|
elog(ERROR, "RemoveFunctionById: couldn't find tuple for function %u",
|
|
|
|
funcOid);
|
|
|
|
|
|
|
|
isagg = ((Form_pg_proc) GETSTRUCT(tup))->proisagg;
|
2002-04-15 07:22:04 +02:00
|
|
|
|
|
|
|
simple_heap_delete(relation, &tup->t_self);
|
|
|
|
|
|
|
|
ReleaseSysCache(tup);
|
|
|
|
|
|
|
|
heap_close(relation, RowExclusiveLock);
|
2002-07-12 20:43:19 +02:00
|
|
|
|
|
|
|
/*
|
|
|
|
* If there's a pg_aggregate tuple, delete that too.
|
|
|
|
*/
|
|
|
|
if (isagg)
|
|
|
|
{
|
|
|
|
relation = heap_openr(AggregateRelationName, RowExclusiveLock);
|
|
|
|
|
|
|
|
tup = SearchSysCache(AGGFNOID,
|
|
|
|
ObjectIdGetDatum(funcOid),
|
|
|
|
0, 0, 0);
|
|
|
|
if (!HeapTupleIsValid(tup)) /* should not happen */
|
|
|
|
elog(ERROR, "RemoveFunctionById: couldn't find pg_aggregate tuple for %u",
|
|
|
|
funcOid);
|
|
|
|
|
|
|
|
simple_heap_delete(relation, &tup->t_self);
|
|
|
|
|
|
|
|
ReleaseSysCache(tup);
|
|
|
|
|
|
|
|
heap_close(relation, RowExclusiveLock);
|
|
|
|
}
|
2002-04-15 07:22:04 +02:00
|
|
|
}
|