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New patch with corrected README attached.

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Also quickly added mention that it may be a qualified schema name.

Rod Taylor
This commit is contained in:
Bruce Momjian
2003-06-12 08:02:57 +00:00
parent ef2ba42717
commit a647e30ba3
18 changed files with 146 additions and 30 deletions
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11
contrib/pgstattuple/README.pgstattuple
View File

@ -8,7 +8,7 @@ pgstattuple README 2002/08/29 Tatsuo Ishii
test=# \x
Expanded display is on.
test=# select * from pgstattuple('pg_proc');
test=# select * from pgstattuple('pg_catalog.pg_proc');
-[ RECORD 1 ]------+-------
table_len | 458752
tuple_count | 1470
@ -45,9 +45,14 @@ free_percent -- free space in %
CREATE OR REPLACE FUNCTION pgstattuple(text) RETURNS pgstattuple_type
AS 'MODULE_PATHNAME', 'pgstattuple'
LANGUAGE 'c' WITH (isstrict);
LANGUAGE 'c' STRICT;
The argument is the table name. Note that pgstattuple only returns
CREATE OR REPLACE FUNCTION pgstattuple(oid) RETURNS pgstattuple_type
AS 'MODULE_PATHNAME', 'pgstattuplebyid'
LANGUAGE 'c' STRICT;
The argument is the table name (optionally it may be qualified)
or the OID of the table. Note that pgstattuple only returns
one row.
4. Notes

50
contrib/pgstattuple/pgstattuple.c
View File

@ -1,5 +1,5 @@
/*
* $Header: /cvsroot/pgsql/contrib/pgstattuple/pgstattuple.c,v 1.9 2002/09/04 20:31:08 momjian Exp $
* $Header: /cvsroot/pgsql/contrib/pgstattuple/pgstattuple.c,v 1.10 2003/06/12 08:02:53 momjian Exp $
*
* Copyright (c) 2001,2002 Tatsuo Ishii
*
@ -33,8 +33,12 @@
PG_FUNCTION_INFO_V1(pgstattuple);
PG_FUNCTION_INFO_V1(pgstattuplebyid);
extern Datum pgstattuple(PG_FUNCTION_ARGS);
extern Datum pgstattuplebyid(PG_FUNCTION_ARGS);
static Datum pgstattuple_real(Relation rel);
/* ----------
* pgstattuple:
@ -46,7 +50,7 @@ extern Datum pgstattuple(PG_FUNCTION_ARGS);
* ----------
*/
#define DUMMY_TUPLE "pgstattuple_type"
#define DUMMY_TUPLE "public.pgstattuple_type"
#define NCOLUMNS 9
#define NCHARS 32
@ -56,6 +60,41 @@ pgstattuple(PG_FUNCTION_ARGS)
text *relname = PG_GETARG_TEXT_P(0);
RangeVar *relrv;
Relation rel;
Datum result;
/* open relation */
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname,
"pgstattuple"));
rel = heap_openrv(relrv, AccessShareLock);
result = pgstattuple_real(rel);
PG_RETURN_DATUM(result);
}
Datum
pgstattuplebyid(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
Relation rel;
Datum result;
/* open relation */
rel = heap_open(relid, AccessShareLock);
result = pgstattuple_real(rel);
PG_RETURN_DATUM(result);
}
/*
* pgstattuple_real
*
* The real work occurs here
*/
static Datum
pgstattuple_real(Relation rel)
{
HeapScanDesc scan;
HeapTuple tuple;
BlockNumber nblocks;
@ -92,11 +131,6 @@ pgstattuple(PG_FUNCTION_ARGS)
*/
attinmeta = TupleDescGetAttInMetadata(tupdesc);
/* open relation */
relrv = makeRangeVarFromNameList(textToQualifiedNameList(relname,
"pgstattuple"));
rel = heap_openrv(relrv, AccessShareLock);
nblocks = RelationGetNumberOfBlocks(rel);
scan = heap_beginscan(rel, SnapshotAny, 0, NULL);
@ -187,5 +221,5 @@ pgstattuple(PG_FUNCTION_ARGS)
pfree(values[i]);
pfree(values);
PG_RETURN_DATUM(result);
return(result);
}

7
contrib/pgstattuple/pgstattuple.sql.in
View File

@ -17,4 +17,9 @@ CREATE TYPE pgstattuple_type AS (
CREATE OR REPLACE FUNCTION pgstattuple(text)
RETURNS pgstattuple_type
AS 'MODULE_PATHNAME', 'pgstattuple'
LANGUAGE 'C' WITH (isstrict);
LANGUAGE 'C' STRICT;
CREATE OR REPLACE FUNCTION pgstattuple(oid)
RETURNS pgstattuple_type
AS 'MODULE_PATHNAME', 'pgstattuplebyid'
LANGUAGE 'C' STRICT;