message: Issue IEJoin Block Indexing
  Fix reversed left/right block index generation.
diff: @@ -1234,8 +1234,8 @@ public:
  // Regular block
  const auto i = next_pair++;
  if (i < pair_count) {
  - const auto b1 = i / left_blocks;
  - const auto b2 = i % left_blocks;
  + const auto b1 = i / right_blocks;
  + const auto b2 = i % right_blocks;
  lstate.left_block_index = b1;
  lstate.left_base = left_bases[b1];
  