pg_range.h File Reference

#include "catalog/genbki.h"
#include "catalog/pg_range_d.h"

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Typedefs
typedef FormData_pg_range *	Form_pg_range

Functions
	CATALOG (pg_range, 3541, RangeRelationId) BKI_WITHOUT_OIDS
void	RangeCreate (Oid rangeTypeOid, Oid rangeSubType, Oid rangeCollation, Oid rangeSubOpclass, RegProcedure rangeCanonical, RegProcedure rangeSubDiff)
void	RangeDelete (Oid rangeTypeOid)

Variables
	FormData_pg_range

Typedef Documentation

Form_pg_range

typedef FormData_pg_range* Form_pg_range

Definition at line 55 of file pg_range.h.

Function Documentation

CATALOG()

CATALOG	(	pg_range	,
		3541	,
		RangeRelationId
	)

Definition at line 29 of file pg_range.h.

References BKI_DEFAULT, and BKI_LOOKUP.

{
    /* OID of owning range type */
    Oid         rngtypid BKI_LOOKUP(pg_type);

    /* OID of range's element type (subtype) */
    Oid         rngsubtype BKI_LOOKUP(pg_type);

    /* collation for this range type, or 0 */
    Oid         rngcollation BKI_DEFAULT(0);

    /* subtype's btree opclass */
    Oid         rngsubopc BKI_LOOKUP(pg_opclass);

    /* canonicalize range, or 0 */
    regproc     rngcanonical BKI_LOOKUP(pg_proc);

    /* subtype difference as a float8, or 0 */
    regproc     rngsubdiff BKI_LOOKUP(pg_proc);
} FormData_pg_range;

RangeCreate()

void RangeCreate	(	Oid	rangeTypeOid,
		Oid	rangeSubType,
		Oid	rangeCollation,
		Oid	rangeSubOpclass,
		RegProcedure	rangeCanonical,
		RegProcedure	rangeSubDiff
	)

Definition at line 37 of file pg_range.c.

References CatalogTupleInsert(), ObjectAddress::classId, DEPENDENCY_NORMAL, heap_close, heap_form_tuple(), heap_freetuple(), heap_open(), ObjectAddress::objectId, ObjectIdGetDatum, ObjectAddress::objectSubId, OidIsValid, recordDependencyOn(), RelationGetDescr, RowExclusiveLock, and values.

Referenced by DefineRange().

{
    Relation    pg_range;
    Datum       values[Natts_pg_range];
    bool        nulls[Natts_pg_range];
    HeapTuple   tup;
    ObjectAddress myself;
    ObjectAddress referenced;

    pg_range = heap_open(RangeRelationId, RowExclusiveLock);

    memset(nulls, 0, sizeof(nulls));

    values[Anum_pg_range_rngtypid - 1] = ObjectIdGetDatum(rangeTypeOid);
    values[Anum_pg_range_rngsubtype - 1] = ObjectIdGetDatum(rangeSubType);
    values[Anum_pg_range_rngcollation - 1] = ObjectIdGetDatum(rangeCollation);
    values[Anum_pg_range_rngsubopc - 1] = ObjectIdGetDatum(rangeSubOpclass);
    values[Anum_pg_range_rngcanonical - 1] = ObjectIdGetDatum(rangeCanonical);
    values[Anum_pg_range_rngsubdiff - 1] = ObjectIdGetDatum(rangeSubDiff);

    tup = heap_form_tuple(RelationGetDescr(pg_range), values, nulls);

    CatalogTupleInsert(pg_range, tup);
    heap_freetuple(tup);

    /* record type's dependencies on range-related items */

    myself.classId = TypeRelationId;
    myself.objectId = rangeTypeOid;
    myself.objectSubId = 0;

    referenced.classId = TypeRelationId;
    referenced.objectId = rangeSubType;
    referenced.objectSubId = 0;
    recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);

    referenced.classId = OperatorClassRelationId;
    referenced.objectId = rangeSubOpclass;
    referenced.objectSubId = 0;
    recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);

    if (OidIsValid(rangeCollation))
    {
        referenced.classId = CollationRelationId;
        referenced.objectId = rangeCollation;
        referenced.objectSubId = 0;
        recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
    }

    if (OidIsValid(rangeCanonical))
    {
        referenced.classId = ProcedureRelationId;
        referenced.objectId = rangeCanonical;
        referenced.objectSubId = 0;
        recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
    }

    if (OidIsValid(rangeSubDiff))
    {
        referenced.classId = ProcedureRelationId;
        referenced.objectId = rangeSubDiff;
        referenced.objectSubId = 0;
        recordDependencyOn(&myself, &referenced, DEPENDENCY_NORMAL);
    }

    heap_close(pg_range, RowExclusiveLock);
}

RangeDelete()

void RangeDelete

(

Oid

rangeTypeOid

)

Definition at line 113 of file pg_range.c.

References BTEqualStrategyNumber, CatalogTupleDelete(), heap_close, heap_open(), HeapTupleIsValid, ObjectIdGetDatum, RangeTypidIndexId, RowExclusiveLock, ScanKeyInit(), systable_beginscan(), systable_endscan(), systable_getnext(), and HeapTupleData::t_self.

Referenced by RemoveTypeById().

{
    Relation    pg_range;
    ScanKeyData key[1];
    SysScanDesc scan;
    HeapTuple   tup;

    pg_range = heap_open(RangeRelationId, RowExclusiveLock);

    ScanKeyInit(&key[0],
                Anum_pg_range_rngtypid,
                BTEqualStrategyNumber, F_OIDEQ,
                ObjectIdGetDatum(rangeTypeOid));

    scan = systable_beginscan(pg_range, RangeTypidIndexId, true,
                              NULL, 1, key);

    while (HeapTupleIsValid(tup = systable_getnext(scan)))
    {
        CatalogTupleDelete(pg_range, &tup->t_self);
    }

    systable_endscan(scan);

    heap_close(pg_range, RowExclusiveLock);
}

Variable Documentation

FormData_pg_range

FormData_pg_range

Definition at line 48 of file pg_range.h.