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Added long-standing transaction when restoring BLOBS (uses commit every BLOB_BATCH_SIZE)

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Prevent dumping of languages from template1.
This commit is contained in:
Philip Warner
2000-10-31 14:20:30 +00:00
parent 0babf31640
commit 44954fae08
8 changed files with 109 additions and 21 deletions
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57
src/bin/pg_dump/pg_backup_archiver.c
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@@ -23,6 +23,10 @@
* Modifications - 31-Jul-2000 - pjw@rhyme.com.au (1.46, 1.47)
* Fixed version number initialization in _allocAH (pg_backup_archiver.c)
*
*
* Modifications - 30-Oct-2000 - pjw@rhyme.com.au
* Added {Start,End}RestoreBlobs to allow extended TX during BLOB restore.
*
*-------------------------------------------------------------------------
*/
@@ -590,6 +594,34 @@ int EndBlob(Archive* AHX, int oid)
* BLOB Restoration
**********/
/*
* Called by a format handler before any blobs are restored
*/
void StartRestoreBlobs(ArchiveHandle* AH)
{
AH->blobCount = 0;
}
/*
* Called by a format handler after all blobs are restored
*/
void EndRestoreBlobs(ArchiveHandle* AH)
{
if (AH->txActive)
{
ahlog(AH, 2, "Committing BLOB transactions\n");
CommitTransaction(AH);
}
if (AH->blobTxActive)
{
CommitTransactionXref(AH);
}
ahlog(AH, 1, "Restored %d BLOBs\n", AH->blobCount);
}
/*
* Called by a format handler to initiate restoration of a blob
*/
@@ -597,6 +629,8 @@ void StartRestoreBlob(ArchiveHandle* AH, int oid)
{
int loOid;
AH->blobCount++;
if (!AH->createdBlobXref)
{
if (!AH->connection)
@@ -606,7 +640,18 @@ void StartRestoreBlob(ArchiveHandle* AH, int oid)
AH->createdBlobXref = 1;
}
StartTransaction(AH);
/*
* Start long-running TXs if necessary
*/
if (!AH->txActive)
{
ahlog(AH, 2, "Starting BLOB transactions\n");
StartTransaction(AH);
}
if (!AH->blobTxActive)
{
StartTransactionXref(AH);
}
loOid = lo_creat(AH->connection, INV_READ | INV_WRITE);
if (loOid == 0)
@@ -628,7 +673,15 @@ void EndRestoreBlob(ArchiveHandle* AH, int oid)
lo_close(AH->connection, AH->loFd);
AH->writingBlob = 0;
CommitTransaction(AH);
/*
* Commit every BLOB_BATCH_SIZE blobs...
*/
if ( ((AH->blobCount / BLOB_BATCH_SIZE) * BLOB_BATCH_SIZE) == AH->blobCount)
{
ahlog(AH, 2, "Committing BLOB transactions\n");
CommitTransaction(AH);
CommitTransactionXref(AH);
}
}
/***********