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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 12:19:15 +0000 |
commit | 6eb9c5a5657d1fe77b55cc261450f3538d35a94d (patch) | |
tree | 657d8194422a5daccecfd42d654b8a245ef7b4c8 /src/include/foreign/foreign.h | |
parent | Initial commit. (diff) | |
download | postgresql-13-upstream.tar.xz postgresql-13-upstream.zip |
Adding upstream version 13.4.upstream/13.4upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/include/foreign/foreign.h')
-rw-r--r-- | src/include/foreign/foreign.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/src/include/foreign/foreign.h b/src/include/foreign/foreign.h new file mode 100644 index 0000000..5e0cf53 --- /dev/null +++ b/src/include/foreign/foreign.h @@ -0,0 +1,84 @@ +/*------------------------------------------------------------------------- + * + * foreign.h + * support for foreign-data wrappers, servers and user mappings. + * + * + * Portions Copyright (c) 1996-2020, PostgreSQL Global Development Group + * + * src/include/foreign/foreign.h + * + *------------------------------------------------------------------------- + */ +#ifndef FOREIGN_H +#define FOREIGN_H + +#include "nodes/parsenodes.h" + + +/* Helper for obtaining username for user mapping */ +#define MappingUserName(userid) \ + (OidIsValid(userid) ? GetUserNameFromId(userid, false) : "public") + + +typedef struct ForeignDataWrapper +{ + Oid fdwid; /* FDW Oid */ + Oid owner; /* FDW owner user Oid */ + char *fdwname; /* Name of the FDW */ + Oid fdwhandler; /* Oid of handler function, or 0 */ + Oid fdwvalidator; /* Oid of validator function, or 0 */ + List *options; /* fdwoptions as DefElem list */ +} ForeignDataWrapper; + +typedef struct ForeignServer +{ + Oid serverid; /* server Oid */ + Oid fdwid; /* foreign-data wrapper */ + Oid owner; /* server owner user Oid */ + char *servername; /* name of the server */ + char *servertype; /* server type, optional */ + char *serverversion; /* server version, optional */ + List *options; /* srvoptions as DefElem list */ +} ForeignServer; + +typedef struct UserMapping +{ + Oid umid; /* Oid of user mapping */ + Oid userid; /* local user Oid */ + Oid serverid; /* server Oid */ + List *options; /* useoptions as DefElem list */ +} UserMapping; + +typedef struct ForeignTable +{ + Oid relid; /* relation Oid */ + Oid serverid; /* server Oid */ + List *options; /* ftoptions as DefElem list */ +} ForeignTable; + +/* Flags for GetForeignServerExtended */ +#define FSV_MISSING_OK 0x01 + +/* Flags for GetForeignDataWrapperExtended */ +#define FDW_MISSING_OK 0x01 + + +extern ForeignServer *GetForeignServer(Oid serverid); +extern ForeignServer *GetForeignServerExtended(Oid serverid, + bits16 flags); +extern ForeignServer *GetForeignServerByName(const char *name, bool missing_ok); +extern UserMapping *GetUserMapping(Oid userid, Oid serverid); +extern ForeignDataWrapper *GetForeignDataWrapper(Oid fdwid); +extern ForeignDataWrapper *GetForeignDataWrapperExtended(Oid fdwid, + bits16 flags); +extern ForeignDataWrapper *GetForeignDataWrapperByName(const char *name, + bool missing_ok); +extern ForeignTable *GetForeignTable(Oid relid); + +extern List *GetForeignColumnOptions(Oid relid, AttrNumber attnum); + +extern Oid get_foreign_data_wrapper_oid(const char *fdwname, bool missing_ok); +extern Oid get_foreign_server_oid(const char *servername, bool missing_ok); + +#endif /* FOREIGN_H */ |