message: change AlignValue -> D_ASSERT(ValueIsAligned))
diff: @@ -264,7 +264,8 @@ public:
  auto dataptr = handle.Ptr();
  // Compact the segment by moving the metadata next to the data.
  - idx_t metadata_offset = AlignValue(data_ptr - dataptr);
  + idx_t metadata_offset = data_ptr - dataptr;
  + D_ASSERT(ValueIsAligned(metadata_offset));
  idx_t metadata_size = dataptr + Storage::BLOCK_SIZE - metadata_ptr - 1;
  idx_t total_segment_size = metadata_offset + metadata_size;
  memmove(dataptr + metadata_offset, metadata_ptr + 1, metadata_size);
  