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Implement BuildStripeMetadata

pull/5052/head
Onur Tirtir 2021-03-25 13:25:35 +03:00
parent 2552aee404
commit f846c16514
1 changed files with 28 additions and 18 deletions
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28
src/backend/columnar/columnar_metadata.c
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@ -71,6 +71,7 @@ static void GetHighestUsedAddressAndId(uint64 storageId,
uint64 *highestUsedAddress,
uint64 *highestUsedId);
static List * ReadDataFileStripeList(uint64 storageId, Snapshot snapshot);
static StripeMetadata * BuildStripeMetadata(Datum *datumArray);
static uint32 * ReadChunkGroupRowCounts(uint64 storageId, uint64 stripe, uint32
chunkGroupCount);
static Oid ColumnarStorageIdSequenceRelationId(void);
@ -840,7 +841,24 @@ ReadDataFileStripeList(uint64 storageId, Snapshot snapshot)
bool isNullArray[Natts_columnar_stripe];
heap_deform_tuple(heapTuple, tupleDescriptor, datumArray, isNullArray);
StripeMetadata *stripeMetadata = BuildStripeMetadata(datumArray);
stripeMetadataList = lappend(stripeMetadataList, stripeMetadata);
}
systable_endscan_ordered(scanDescriptor);
index_close(index, AccessShareLock);
table_close(columnarStripes, AccessShareLock);
return stripeMetadataList;
}
/*
* BuildStripeMetadata builds a StripeMetadata object from given datumArray.
*/
static StripeMetadata *
BuildStripeMetadata(Datum *datumArray)
{
StripeMetadata *stripeMetadata = palloc0(sizeof(StripeMetadata));
stripeMetadata->id = DatumGetInt64(datumArray[Anum_columnar_stripe_stripe - 1]);
stripeMetadata->fileOffset = DatumGetInt64(
@ -857,15 +875,7 @@ ReadDataFileStripeList(uint64 storageId, Snapshot snapshot)
datumArray[Anum_columnar_stripe_row_count - 1]);
stripeMetadata->firstRowNumber = DatumGetUInt64(
datumArray[Anum_columnar_stripe_first_row_number - 1]);
stripeMetadataList = lappend(stripeMetadataList, stripeMetadata);
}
systable_endscan_ordered(scanDescriptor);
index_close(index, AccessShareLock);
table_close(columnarStripes, AccessShareLock);
return stripeMetadataList;
return stripeMetadata;
}