sequence.c File Reference

#include "postgres.h"
#include "access/relation.h"
#include "access/sequence.h"
#include "utils/rel.h"

Include dependency graph for sequence.c:

Go to the source code of this file.

Functions
static void	validate_relation_kind (Relation r)
Relation	sequence_open (Oid relationId, LOCKMODE lockmode)
void	sequence_close (Relation relation, LOCKMODE lockmode)

Function Documentation

sequence_close()

void sequence_close	(	Relation	relation,
		LOCKMODE	lockmode
	)

Definition at line 58 of file sequence.c.

{
    relation_close(relation, lockmode);
}

References relation_close().

Referenced by AlterSequence(), currval_oid(), DefineSequence(), lastval(), nextval_internal(), pg_get_sequence_data(), pg_sequence_last_value(), ResetSequence(), SequenceChangePersistence(), and SetSequence().

sequence_open()

Relation sequence_open	(	Oid	relationId,
		LOCKMODE	lockmode
	)

Definition at line 37 of file sequence.c.

{
    Relation    r;
 
    r = relation_open(relationId, lockmode);
 
    validate_relation_kind(r);
 
    return r;
}

References relation_open(), and validate_relation_kind().

Referenced by DefineSequence(), and lock_and_open_sequence().

validate_relation_kind()

static void validate_relation_kind ( Relation  r )

inlinestatic

Definition at line 70 of file sequence.c.

{
    if (r->rd_rel->relkind != RELKIND_SEQUENCE)
        ereport(ERROR,
                (errcode(ERRCODE_WRONG_OBJECT_TYPE),
                 errmsg("cannot open relation \"%s\"",
                        RelationGetRelationName(r)),
                 errdetail_relkind_not_supported(r->rd_rel->relkind)));
}

References ereport, errcode(), errdetail_relkind_not_supported(), errmsg(), ERROR, RelationData::rd_rel, and RelationGetRelationName.

Referenced by sequence_open().