greenplumn pg_language 源码
greenplumn pg_language 代码
文件路径：/src/include/catalog/pg_language.h
/*-------------------------------------------------------------------------
*
* pg_language.h
* definition of the "language" system catalog (pg_language)
*
*
* Portions Copyright (c) 1996-2019, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* src/include/catalog/pg_language.h
*
* NOTES
* The Catalog.pm module reads this file and derives schema
* information.
*
*-------------------------------------------------------------------------
*/
#ifndef PG_LANGUAGE_H
#define PG_LANGUAGE_H
#include "catalog/genbki.h"
#include "catalog/pg_language_d.h"
/* ----------------
* pg_language definition. cpp turns this into
* typedef struct FormData_pg_language
* ----------------
*/
CATALOG(pg_language,2612,LanguageRelationId)
{
Oid oid; /* oid */
/* Language name */
NameData lanname;
/* Language's owner */
Oid lanowner BKI_DEFAULT(PGUID);
/* Is a procedural language */
bool lanispl BKI_DEFAULT(f);
/* PL is trusted */
bool lanpltrusted BKI_DEFAULT(f);
/* Call handler, if it's a PL */
Oid lanplcallfoid BKI_DEFAULT(0) BKI_LOOKUP(pg_proc);
/* Optional anonymous-block handler function */
Oid laninline BKI_DEFAULT(0) BKI_LOOKUP(pg_proc);
/* Optional validation function */
Oid lanvalidator BKI_DEFAULT(0) BKI_LOOKUP(pg_proc);
#ifdef CATALOG_VARLEN /* variable-length fields start here */
/* Access privileges */
aclitem lanacl[1] BKI_DEFAULT(_null_);
#endif
} FormData_pg_language;
/* GPDB added foreign key definitions for gpcheckcat. */
FOREIGN_KEY(lanplcallfoid REFERENCES pg_proc(oid));
FOREIGN_KEY(lanvalidator REFERENCES pg_proc(oid));
FOREIGN_KEY(lanowner REFERENCES pg_authid(oid));
/* ----------------
* Form_pg_language corresponds to a pointer to a tuple with
* the format of pg_language relation.
* ----------------
*/
typedef FormData_pg_language *Form_pg_language;
#endif /* PG_LANGUAGE_H */
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