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Code Issues

Improvement #8042 : Improve conflict resolution on replica when table have both Primary and Unique keys

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This commit is contained in:
Vlad Khorsun 2024-03-13 11:18:17 +02:00
parent eb3a0d3609
commit 62f4c5a786
2 changed files with 33 additions and 6 deletions
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37
src/jrd/replication/Applier.cpp
View File

@ -201,11 +201,12 @@ namespace
}
};
class LocalThreadContext
class LocalThreadContext : Firebird::ContextPoolHolder
{
public:
LocalThreadContext(thread_db* tdbb, jrd_tra* tra, Request* req = NULL)
: m_tdbb(tdbb)
: Firebird::ContextPoolHolder(req ? req->req_pool : tdbb->getDefaultPool()),
m_tdbb(tdbb)
{
tdbb->setTransaction(tra);
tdbb->setRequest(req);
@ -572,6 +573,8 @@ void Applier::insertRecord(thread_db* tdbb, TraNumber traNum,
rpb.rpb_length = length;
record->copyDataFrom(data);
FbLocalStatus error;
try
{
doInsert(tdbb, &rpb, transaction);
@ -586,6 +589,7 @@ void Applier::insertRecord(thread_db* tdbb, TraNumber traNum,
throw;
}
ex.stuffException(&error);
fb_utils::init_status(tdbb->tdbb_status_vector);
// The subsequent backout will delete the blobs we have stored before,
@ -626,8 +630,14 @@ void Applier::insertRecord(thread_db* tdbb, TraNumber traNum,
bool found = false;
#ifdef RESOLVE_CONFLICTS
fb_assert(error[1] == isc_unique_key_violation || error[1] == isc_no_dup);
fb_assert(error[2] == isc_arg_string);
fb_assert(error[3] != 0);
const char* idxName = reinterpret_cast<const char*>(error[3]);
index_desc idx;
const auto indexed = lookupRecord(tdbb, relation, record, idx);
const auto indexed = lookupRecord(tdbb, relation, record, idx, idxName);
AutoPtr<Record> cleanup;
@ -1076,7 +1086,7 @@ bool Applier::compareKey(thread_db* tdbb, jrd_rel* relation, const index_desc& i
bool Applier::lookupRecord(thread_db* tdbb,
jrd_rel* relation, Record* record,
index_desc& idx)
index_desc& idx, const char* idxName)
{
RecordBitmap::reset(m_bitmap);
@ -1087,7 +1097,24 @@ bool Applier::lookupRecord(thread_db* tdbb,
return false;
}
if (lookupKey(tdbb, relation, idx))
bool haveIdx = false;
if (idxName)
{
SLONG foundRelId;
IndexStatus idxStatus;
SLONG idx_id = MET_lookup_index_name(tdbb, idxName, &foundRelId, &idxStatus);
fb_assert(idxStatus == MET_object_active);
fb_assert(foundRelId == relation->rel_id);
haveIdx = (idxStatus == MET_object_active) && (foundRelId == relation->rel_id) &&
BTR_lookup(tdbb, relation, idx_id, &idx, relation->getPages(tdbb));
}
if (!haveIdx)
haveIdx = lookupKey(tdbb, relation, idx);
if (haveIdx)
{
IndexKey key(tdbb, relation, &idx);
if (const auto result = key.compose(record))

2
src/jrd/replication/Applier.h
View File

@ -190,7 +190,7 @@ namespace Jrd
const index_desc& idx,
Record* record1, Record* record2);
bool lookupRecord(thread_db* tdbb, jrd_rel* relation,
Record* record, index_desc& idx);
Record* record, index_desc& idx, const char* idxName = nullptr);
const Format* findFormat(thread_db* tdbb, jrd_rel* relation, ULONG length);