Fix the last_tile_group_id optimization in TOTM.

mbutrovich · mbutrovich · commit 8afd1b78eb05 · 2018-06-13T16:14:57.000-04:00
diff --git a/src/concurrency/timestamp_ordering_transaction_manager.cpp b/src/concurrency/timestamp_ordering_transaction_manager.cpp
@@ -667,6 +667,7 @@ ResultType TimestampOrderingTransactionManager::CommitTransaction(
     if (tile_group_id != last_tile_group_id) {
       tile_group_header =
           storage_manager->GetTileGroup(tile_group_id)->GetHeader();
+      last_tile_group_id = tile_group_id;
     }
 
     if (tuple_entry.second == RWType::READ_OWN) {
@@ -826,6 +827,7 @@ ResultType TimestampOrderingTransactionManager::AbortTransaction(
     if (tile_group_id != last_tile_group_id) {
       tile_group_header =
           storage_manager->GetTileGroup(tile_group_id)->GetHeader();
+      last_tile_group_id = tile_group_id;
     }
 
     if (tuple_entry.second == RWType::READ_OWN) {

Original file line number	Diff line number	Diff line change
`@@ -667,6 +667,7 @@ ResultType TimestampOrderingTransactionManager::CommitTransaction(`
`667`	`667`	`if (tile_group_id != last_tile_group_id) {`
`668`	`668`	`tile_group_header =`
`669`	`669`	`storage_manager->GetTileGroup(tile_group_id)->GetHeader();`
	`670`	`+ last_tile_group_id = tile_group_id;`
`670`	`671`	`}`
`671`	`672`
`672`	`673`	`if (tuple_entry.second == RWType::READ_OWN) {`
`@@ -826,6 +827,7 @@ ResultType TimestampOrderingTransactionManager::AbortTransaction(`
`826`	`827`	`if (tile_group_id != last_tile_group_id) {`
`827`	`828`	`tile_group_header =`
`828`	`829`	`storage_manager->GetTileGroup(tile_group_id)->GetHeader();`
	`830`	`+ last_tile_group_id = tile_group_id;`
`829`	`831`	`}`
`830`	`832`
`831`	`833`	`if (tuple_entry.second == RWType::READ_OWN) {`