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Commit308985b

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Fix dangling pointer problem in ReorderBufferSerializeChange.
Commit3fe3511 introduced a newcase into this function, but neglected to ensure that the "ondisk"pointer got updated after a possible reallocation as the code doesin other cases.Stas Kelvich, per diagnosis by Konstantin Knizhnik.
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‎src/backend/replication/logical/reorderbuffer.c

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Original file line numberDiff line numberDiff line change
@@ -2250,6 +2250,9 @@ ReorderBufferSerializeChange(ReorderBuffer *rb, ReorderBufferTXN *txn,
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data= ((char*)rb->outbuf)+sizeof(ReorderBufferDiskChange);
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/* might have been reallocated above */
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ondisk= (ReorderBufferDiskChange*)rb->outbuf;
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/* write the prefix including the size */
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memcpy(data,&prefix_size,sizeof(Size));
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data+=sizeof(Size);

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