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Commiteabb225

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Remove over-eager assertion in ExtendBufferedRelTo()
The assertion checked that the size of the relation is not "too large" - butthe code is explicitly dealing with the possibility of another backendextending the relation concurrently. In that case the new relation size couldbe bigger than what the current backend needs, wrongly triggering an assertionfailure.Unfortunately it is hard to write a reliable and affordable regression testsfor this, as a lot of concurrency is needed to encounter the bug.Introduced in31966b1.Reported-by: Melanie Plageman <melanieplageman@gmail.com>
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‎src/backend/storage/buffer/bufmgr.c

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Original file line numberDiff line numberDiff line change
@@ -953,7 +953,6 @@ ExtendBufferedRelTo(ExtendBufferedWhat eb,
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buffers,&extended_by);
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current_size=first_block+extended_by;
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Assert(current_size <=extend_to);
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Assert(num_pages!=0||current_size >=extend_to);
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for (inti=0;i<extended_by;i++)

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