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pageinspect: Support hash indexes.

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Patch by Jesper Pedersen and Ashutosh Sharma, with some error handling
improvements by me.  Tests from Peter Eisentraut.  Reviewed by Álvaro
Herrera, Michael Paquier, Jesper Pedersen, Jeff Janes, Peter
Eisentraut, Amit Kapila, Mithun Cy, and me.

Discussion: http://postgr.es/m/e2ac6c58-b93f-9dd9-f4e6-d6d30add7fdf@redhat.com
This commit is contained in:
Robert Haas
2017-02-02 14:12:58 -05:00
parent acd73ad1a1
commit 08bf6e5295
9 changed files with 995 additions and 10 deletions
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8
src/backend/access/hash/hashovfl.c
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@@ -52,10 +52,12 @@ bitno_to_blkno(HashMetaPage metap, uint32 ovflbitnum)
}
/*
* _hash_ovflblkno_to_bitno
*
* Convert overflow page block number to bit number for free-page bitmap.
*/
static uint32
blkno_to_bitno(HashMetaPage metap, BlockNumber ovflblkno)
uint32
_hash_ovflblkno_to_bitno(HashMetaPage metap, BlockNumber ovflblkno)
{
uint32 splitnum = metap->hashm_ovflpoint;
uint32 i;
@@ -485,7 +487,7 @@ _hash_freeovflpage(Relation rel, Buffer ovflbuf, Buffer wbuf,
metap = HashPageGetMeta(BufferGetPage(metabuf));
/* Identify which bit to set */
ovflbitno = blkno_to_bitno(metap, ovflblkno);
ovflbitno = _hash_ovflblkno_to_bitno(metap, ovflblkno);
bitmappage = ovflbitno >> BMPG_SHIFT(metap);
bitmapbit = ovflbitno & BMPG_MASK(metap);