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Implement ColumnarOverwriteMetapage

pull/5052/head
Onur Tirtir 2021-04-27 14:01:04 +03:00
parent 7b9aecff21
commit 9c1ac3127f
1 changed files with 20 additions and 12 deletions
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32
src/backend/columnar/columnar_storage.c
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@ -114,6 +114,8 @@ PhysicalToLogical(PhysicalAddr addr)
}
static void ColumnarOverwriteMetapage(Relation relation,
ColumnarMetapage columnarMetapage);
static ColumnarMetapage ColumnarMetapageRead(Relation rel, bool force);
static void ReadFromBlock(Relation rel, BlockNumber blockno, uint32 offset,
char *buf, uint32 len, bool force);
@ -226,9 +228,7 @@ ColumnarStorageUpdateCurrent(Relation rel, bool upgrade, uint64 reservedStripeId
metapage.reservedRowNumber = reservedRowNumber;
metapage.reservedOffset = reservedOffset;
WriteToBlock(rel, COLUMNAR_METAPAGE_BLOCKNO, SizeOfPageHeaderData,
(char *) &metapage, sizeof(ColumnarMetapage),
true /* clear because we are overwriting */);
ColumnarOverwriteMetapage(rel, metapage);
UnlockRelationForExtension(rel, ExclusiveLock);
}
@ -362,9 +362,7 @@ ColumnarStorageReserveStripe(Relation rel, uint64 nrows, uint64 *firstRowNumber)
*firstRowNumber = metapage.reservedRowNumber;
metapage.reservedRowNumber += nrows;
WriteToBlock(rel, COLUMNAR_METAPAGE_BLOCKNO, SizeOfPageHeaderData,
(char *) &metapage, sizeof(ColumnarMetapage),
true /* clear because we are overwriting */);
ColumnarOverwriteMetapage(rel, metapage);
UnlockRelationForExtension(rel, ExclusiveLock);
@ -392,9 +390,7 @@ ColumnarStorageReserveData(Relation rel, uint64 amount)
metapage.reservedOffset = nextReservation;
/* write new reservation */
WriteToBlock(rel, COLUMNAR_METAPAGE_BLOCKNO, SizeOfPageHeaderData,
(char *) &metapage, sizeof(ColumnarMetapage),
true /* clear because we are overwriting */);
ColumnarOverwriteMetapage(rel, metapage);
/* last used PhysicalAddr of new reservation */
PhysicalAddr final = LogicalToPhysical(nextReservation - 1);
@ -538,9 +534,7 @@ ColumnarStorageTruncate(Relation rel, uint64 newDataReservation)
metapage.reservedOffset = newDataReservation;
/* write new reservation */
WriteToBlock(rel, COLUMNAR_METAPAGE_BLOCKNO, SizeOfPageHeaderData,
(char *) &metapage, sizeof(ColumnarMetapage),
true /* clear because we are overwriting */);
ColumnarOverwriteMetapage(rel, metapage);
UnlockRelationForExtension(rel, ExclusiveLock);
@ -562,6 +556,20 @@ ColumnarStorageTruncate(Relation rel, uint64 newDataReservation)
}
/*
* ColumnarOverwriteMetapage writes given columnarMetapage back to metapage
* for given relation.
*/
static void
ColumnarOverwriteMetapage(Relation relation, ColumnarMetapage columnarMetapage)
{
/* clear metapage because we are overwriting */
bool clear = true;
WriteToBlock(relation, COLUMNAR_METAPAGE_BLOCKNO, SizeOfPageHeaderData,
(char *) &columnarMetapage, sizeof(ColumnarMetapage), clear);
}
/*
* ColumnarMetapageRead - read the current contents of the metapage. Error if
* it does not exist. Throw an error if the metapage is not the current