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Commit6e146a6

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Change LogicalTapeSetBlocks() to use nBlocksWritten.
Previously, it was based on nBlocksAllocated to account for tapes withopen write buffers that may not have made it to the BufFile yet.That was unnecessary, because callers do not need to get the number ofblocks while a tape has an open write buffer; and it also conflictedwith the preallocation logic added for HashAgg.Reviewed-by: Peter GeogheganDiscussion:https://postgr.es/m/ce5af05900fdbd0e9185747825a7423c48501964.camel@j-davis.comBackpatch-through: 13
1 parent42a46f5 commit6e146a6

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2 files changed

+12
-2
lines changed

2 files changed

+12
-2
lines changed

‎src/backend/executor/nodeAgg.c

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2704,8 +2704,8 @@ agg_refill_hash_table(AggState *aggstate)
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27052705
if (spill_initialized)
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{
2707-
hash_agg_update_metrics(aggstate, true,spill.npartitions);
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hashagg_spill_finish(aggstate,&spill,batch->setno);
2708+
hash_agg_update_metrics(aggstate, true,spill.npartitions);
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}
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else
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hash_agg_update_metrics(aggstate, true,0);

‎src/backend/utils/sort/logtape.c

Lines changed: 11 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1262,9 +1262,19 @@ LogicalTapeTell(LogicalTapeSet *lts, int tapenum,
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/*
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* Obtain total disk space currently used by a LogicalTapeSet, in blocks.
1265+
*
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* This should not be called while there are open write buffers; otherwise it
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* may not account for buffered data.
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*/
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long
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LogicalTapeSetBlocks(LogicalTapeSet*lts)
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{
1269-
returnlts->nBlocksAllocated-lts->nHoleBlocks;
1272+
#ifdefUSE_ASSERT_CHECKING
1273+
for (inti=0;i<lts->nTapes;i++)
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{
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LogicalTape*lt=&lts->tapes[i];
1276+
Assert(!lt->writing||lt->buffer==NULL);
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}
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#endif
1279+
returnlts->nBlocksWritten-lts->nHoleBlocks;
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}

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