git.postgresql.org Git - postgresql.git/commitdiff

Mon, 1 Dec 2003 16:53:19 +0000 (16:53 +0000)

since there is no need to worry about damaged pages when we are going to
overwrite them anyway from the WAL. Per recent discussion.

index e363180d6615b0851e3e68bf7056f888b9cbab15..c0c35613208e7a7248659d7a2cd71df3ff180c7c 100644 (file)

* IDENTIFICATION

- * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.147 2003年11月29日 19:51:56 pgsql Exp $

+ * $PostgreSQL: pgsql/src/backend/storage/buffer/bufmgr.c,v 1.148 2003年12月01日 16:53:19 tgl Exp $

*-------------------------------------------------------------------------

@@ -231,7 +231,13 @@ ReadBufferInternal(Relation reln, BlockNumber blockNum,

if (status == SM_SUCCESS &&

!PageHeaderIsValid((PageHeader) MAKE_PTR(bufHdr->data)))

{

- if (zero_damaged_pages)

+ /*

+ * During WAL recovery, the first access to any data page should

+ * overwrite the whole page from the WAL; so a clobbered page

+ * header is not reason to fail. Hence, when InRecovery we may

+ * always act as though zero_damaged_pages is ON.

+ */

+ if (zero_damaged_pages || InRecovery)

{

ereport(WARNING,

(errcode(ERRCODE_DATA_CORRUPTED),

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