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Basic foreign table support.

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Foreign tables are a core component of SQL/MED.  This commit does
not provide a working SQL/MED infrastructure, because foreign tables
cannot yet be queried.  Support for foreign table scans will need to
be added in a future patch.  However, this patch creates the necessary
system catalog structure, syntax support, and support for ancillary
operations such as COMMENT and SECURITY LABEL.

Shigeru Hanada, heavily revised by Robert Haas
This commit is contained in:
Robert Haas
2011-01-01 23:48:11 -05:00
parent 6600d5e91c
commit 0d692a0dc9
69 changed files with 2275 additions and 211 deletions
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18
src/include/nodes/parsenodes.h
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@@ -1066,6 +1066,7 @@ typedef enum ObjectType
OBJECT_DOMAIN,
OBJECT_FDW,
OBJECT_FOREIGN_SERVER,
OBJECT_FOREIGN_TABLE,
OBJECT_FUNCTION,
OBJECT_INDEX,
OBJECT_LANGUAGE,
@@ -1165,7 +1166,8 @@ typedef enum AlterTableType
AT_EnableReplicaRule, /* ENABLE REPLICA RULE name */
AT_DisableRule, /* DISABLE RULE name */
AT_AddInherit, /* INHERIT parent */
AT_DropInherit /* NO INHERIT parent */
AT_DropInherit, /* NO INHERIT parent */
AT_GenericOptions, /* OPTIONS (...) */
} AlterTableType;
typedef struct AlterTableCmd /* one subcommand of an ALTER TABLE */
@@ -1226,6 +1228,7 @@ typedef enum GrantObjectType
ACL_OBJECT_DATABASE, /* database */
ACL_OBJECT_FDW, /* foreign-data wrapper */
ACL_OBJECT_FOREIGN_SERVER, /* foreign server */
ACL_OBJECT_FOREIGN_TABLE, /* foreign table */
ACL_OBJECT_FUNCTION, /* function */
ACL_OBJECT_LANGUAGE, /* procedural language */
ACL_OBJECT_LARGEOBJECT, /* largeobject */
@@ -1579,6 +1582,18 @@ typedef struct DropForeignServerStmt
DropBehavior behavior; /* drop behavior - cascade/restrict */
} DropForeignServerStmt;
/* ----------------------
* Create FOREIGN TABLE Statements
* ----------------------
*/
typedef struct CreateForeignTableStmt
{
CreateStmt base;
char *servername;
List *options;
} CreateForeignTableStmt;
/* ----------------------
* Create/Drop USER MAPPING Statements
* ----------------------
@@ -2068,6 +2083,7 @@ typedef struct RenameStmt
{
NodeTag type;
ObjectType renameType; /* OBJECT_TABLE, OBJECT_COLUMN, etc */
ObjectType relationType; /* if column name, associated relation type */
RangeVar *relation; /* in case it's a table */
List *object; /* in case it's some other object */
List *objarg; /* argument types, if applicable */