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Fix contrib/dbsize for schema-qualified table names.

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This commit is contained in:
Tom Lane 2002-04-02 01:17:28 +00:00
parent 1dc43ea75f
commit 688781d450
2 changed files with 26 additions and 31 deletions
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51
contrib/dbsize/dbsize.c
View File

@ -1,19 +1,20 @@
#include "postgres.h"
#include "fmgr.h"
#include "access/heapam.h"
#include "catalog/catalog.h"
#include "catalog/catname.h"
#include "catalog/pg_database.h"
#include "utils/fmgroids.h"
#include <stdlib.h>
#include <sys/types.h>
#include <dirent.h>
#include <sys/stat.h>
#include <unistd.h>
#include <errno.h>
#include "access/heapam.h"
#include "catalog/catalog.h"
#include "catalog/catname.h"
#include "catalog/namespace.h"
#include "catalog/pg_database.h"
#include "fmgr.h"
#include "utils/builtins.h"
#include "utils/fmgroids.h"
static char *
psnprintf(size_t len, const char *fmt,...)
@ -38,6 +39,8 @@ psnprintf(size_t len, const char *fmt,...)
PG_FUNCTION_INFO_V1(database_size);
Datum database_size(PG_FUNCTION_ARGS);
Datum
database_size(PG_FUNCTION_ARGS)
{
@ -107,39 +110,29 @@ database_size(PG_FUNCTION_ARGS)
/*
* SQL function: relation_size(name) returns bigint
* SQL function: relation_size(text) returns bigint
*/
PG_FUNCTION_INFO_V1(relation_size);
Datum relation_size(PG_FUNCTION_ARGS);
Datum
relation_size(PG_FUNCTION_ARGS)
{
Name relname = PG_GETARG_NAME(0);
text *relname = PG_GETARG_TEXT_P(0);
HeapTuple tuple;
RangeVar *relrv;
Relation relation;
ScanKeyData scanKey;
HeapScanDesc scan;
Oid relnode;
int64 totalsize;
unsigned int segcount;
relation = heap_openr(RelationRelationName, AccessShareLock);
ScanKeyEntryInitialize(&scanKey, 0, Anum_pg_class_relname,
F_NAMEEQ, NameGetDatum(relname));
scan = heap_beginscan(relation, 0, SnapshotNow, 1, &scanKey);
tuple = heap_getnext(scan, 0);
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname,
"relation_size"));
relation = relation_openrv(relrv, AccessShareLock);
if (!HeapTupleIsValid(tuple))
elog(ERROR, "relation %s does not exist", NameStr(*relname));
relnode = ((Form_pg_class) GETSTRUCT(tuple))->relfilenode;
if (relnode == InvalidOid)
elog(ERROR, "invalid relation node id");
heap_endscan(scan);
heap_close(relation, NoLock);
relnode = relation->rd_rel->relfilenode;
totalsize = 0;
segcount = 0;
@ -158,12 +151,14 @@ relation_size(PG_FUNCTION_ARGS)
if (errno == ENOENT)
break;
else
elog(ERROR, "could not stat %s: %s", fullname, strerror(errno));
elog(ERROR, "could not stat %s: %m", fullname);
}
totalsize += statbuf.st_size;
pfree(fullname);
segcount++;
}
relation_close(relation, AccessShareLock);
PG_RETURN_INT64(totalsize);
}

6
contrib/dbsize/dbsize.sql.in
View File

@ -1,7 +1,7 @@
CREATE FUNCTION database_size (name) RETURNS bigint
AS '@MODULE_FILENAME@', 'database_size'
AS 'MODULE_PATHNAME', 'database_size'
LANGUAGE C WITH (isstrict);
CREATE FUNCTION relation_size (name) RETURNS bigint
AS '@MODULE_FILENAME@', 'relation_size'
CREATE FUNCTION relation_size (text) RETURNS bigint
AS 'MODULE_PATHNAME', 'relation_size'
LANGUAGE C WITH (isstrict);