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Fix pageinspect's heap_page_item to return infomasks as 32 bit values

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HeapTupleHeader's t_infomask and t_infomask2 are defined as 16-bit
unsigned integers, so when the 16th bit was set, heap_page_item was
returning them as negative values, which was ugly.

The change to pageinspect--unpackaged--1.0.sql allows a module upgraded
from 9.0 to be cleanly updated from the previous definition.
This commit is contained in:
Alvaro Herrera 2011-02-25 19:04:25 -03:00
parent 79ad8fc5f8
commit a338d65461
2 changed files with 21 additions and 3 deletions
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4
contrib/pageinspect/heapfuncs.c
View File

@ -170,8 +170,8 @@ heap_page_items(PG_FUNCTION_ARGS)
values[5] = UInt32GetDatum(HeapTupleHeaderGetXmax(tuphdr));
values[6] = UInt32GetDatum(HeapTupleHeaderGetRawCommandId(tuphdr)); /* shared with xvac */
values[7] = PointerGetDatum(&tuphdr->t_ctid);
values[8] = UInt16GetDatum(tuphdr->t_infomask2);
values[9] = UInt16GetDatum(tuphdr->t_infomask);
values[8] = UInt32GetDatum(tuphdr->t_infomask2);
values[9] = UInt32GetDatum(tuphdr->t_infomask);
values[10] = UInt8GetDatum(tuphdr->t_hoff);
/*

20
contrib/pageinspect/pageinspect--unpackaged--1.0.sql
View File

@ -1,9 +1,27 @@
/* contrib/pageinspect/pageinspect--unpackaged--1.0.sql */
DROP FUNCTION heap_page_items(bytea);
CREATE FUNCTION heap_page_items(IN page bytea,
OUT lp smallint,
OUT lp_off smallint,
OUT lp_flags smallint,
OUT lp_len smallint,
OUT t_xmin xid,
OUT t_xmax xid,
OUT t_field3 int4,
OUT t_ctid tid,
OUT t_infomask2 integer,
OUT t_infomask integer,
OUT t_hoff smallint,
OUT t_bits text,
OUT t_oid oid)
RETURNS SETOF record
AS 'MODULE_PATHNAME', 'heap_page_items'
LANGUAGE C STRICT;
ALTER EXTENSION pageinspect ADD function get_raw_page(text,integer);
ALTER EXTENSION pageinspect ADD function get_raw_page(text,text,integer);
ALTER EXTENSION pageinspect ADD function page_header(bytea);
ALTER EXTENSION pageinspect ADD function heap_page_items(bytea);
ALTER EXTENSION pageinspect ADD function bt_metap(text);
ALTER EXTENSION pageinspect ADD function bt_page_stats(text,integer);
ALTER EXTENSION pageinspect ADD function bt_page_items(text,integer);