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Commit ea56b06

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anarazelanarazel
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Fix wrong keysize in PrivateRefCountHash creation.
In 4b4b680 I accidentally used sizeof(PrivateRefCountArray) instead of sizeof(PrivateRefCountEntry) when creating the refcount overflow hashtable. As the former is bigger than the latter, this luckily only resulted in a slightly increased memory usage when many buffers are pinned in a backend. Reported-By: Takashi Horikawa Discussion: 73FA3881462C614096F815F75628AFCD035A48C3@BPXM01GP.gisp.nec.co.jp Backpatch: 9.5, where thew new ref count infrastructure was introduced
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‎src/backend/storage/buffer/bufmgr.c‎

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+1-1Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -2166,7 +2166,7 @@ InitBufferPoolAccess(void)
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MemSet(&hash_ctl, 0, sizeof(hash_ctl));
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hash_ctl.keysize = sizeof(int32);
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hash_ctl.entrysize = sizeof(PrivateRefCountArray);
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hash_ctl.entrysize = sizeof(PrivateRefCountEntry);
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PrivateRefCountHash = hash_create("PrivateRefCount", 100, &hash_ctl,
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HASH_ELEM | HASH_BLOBS);

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