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Implement CREATE/DROP OPERATOR CLASS. Work still remains: need more

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documentation (xindex.sgml should be rewritten), need to teach pg_dump
about it, need to update contrib modules that currently build pg_opclass
entries by hand.  Original patch by Bill Studenmund, grammar adjustments
and general update for 7.3 by Tom Lane.
This commit is contained in:
Tom Lane
2002-07-29 22:14:11 +00:00
parent b9459c6adb
commit ea4686e3e1
26 changed files with 1697 additions and 373 deletions
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45
src/include/nodes/parsenodes.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $Id: parsenodes.h,v 1.194 2002/07/24 19:11:14 petere Exp $
* $Id: parsenodes.h,v 1.195 2002/07/29 22:14:11 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@@ -1115,6 +1115,37 @@ typedef struct CreateDomainStmt
List *constraints; /* constraints (list of Constraint nodes) */
} CreateDomainStmt;
/* ----------------------
* Create Operator Class Statement
* ----------------------
*/
typedef struct CreateOpClassStmt
{
NodeTag type;
List *opclassname; /* qualified name (list of Value strings) */
char *amname; /* name of index AM opclass is for */
TypeName *datatype; /* datatype of indexed column */
List *items; /* List of CreateOpClassItem nodes */
bool isDefault; /* Should be marked as default for type? */
} CreateOpClassStmt;
#define OPCLASS_ITEM_OPERATOR 1
#define OPCLASS_ITEM_FUNCTION 2
#define OPCLASS_ITEM_STORAGETYPE 3
typedef struct CreateOpClassItem
{
NodeTag type;
int itemtype; /* see codes above */
/* fields used for an operator or function item: */
List *name; /* operator or function name */
List *args; /* argument types */
int number; /* strategy num or support proc num */
bool recheck; /* only used for operators */
/* fields used for a storagetype item: */
TypeName *storedtype; /* datatype stored in index */
} CreateOpClassItem;
/* ----------------------
* Drop Table|Sequence|View|Index|Type|Domain|Conversion|Schema Statement
* ----------------------
@@ -1288,6 +1319,18 @@ typedef struct RemoveOperStmt
DropBehavior behavior; /* RESTRICT or CASCADE behavior */
} RemoveOperStmt;
/* ----------------------
* Drop Operator Class Statement
* ----------------------
*/
typedef struct RemoveOpClassStmt
{
NodeTag type;
List *opclassname; /* qualified name (list of Value strings) */
char *amname; /* name of index AM opclass is for */
DropBehavior behavior; /* RESTRICT or CASCADE behavior */
} RemoveOpClassStmt;
/* ----------------------
* Alter Object Rename Statement
* ----------------------