diff --git a/data_prep/R/schema_col_classes.R b/data_prep/R/schema_col_classes.R
index c27ea18..6385d07 100644
--- a/data_prep/R/schema_col_classes.R
+++ b/data_prep/R/schema_col_classes.R
@@ -16,3 +16,273 @@ df[, col_class := fcase(decimal_places>0, '= numeric(),',
 
 
 df[,. (var_name, col_class)] |> print()
+
+
+
+library(arrow)
+library(dplyr)
+library(censobr)
+
+aaa <- schema(
+  code_muni= int32(),
+  code_state= int32(),
+  abbrev_state= string(),
+  name_state= string(),
+  code_region= int32(),
+  name_region = string(),
+  code_weighting= int64(),
+  V0001 = int32(),
+  V0002 = int32(),
+  V0011 = int64(),
+  V0300 = double(),
+  V0010 = double(),
+  V1001 = int32(),
+  V1002 = int32(),
+  V1003 = int32(),
+  V1004 = int32(),
+  V1006 = int32(),
+  V0502 = int32(),
+  V0504 = int32(),
+  V0601 = int32(),
+  V6033 = int32(),
+  V6036 = int32(),
+  V6037 = int32(),
+  V6040 = int32(),
+  V0606 = int32(),
+  V0613 = int32(),
+  V0614 = int32(),
+  V0615 = int32(),
+  V0616 = int32(),
+  V0617 = int32(),
+  V0618 = int32(),
+  V0619 = int32(),
+  V0620 = int32(),
+  V0621 = int32(),
+  V0622 = int32(),
+  V6222 = int32(),
+  V6224 = int32(),
+  V0623 = int32(),
+  V0624 = int32(),
+  V0625 = int32(),
+  V6252 = int32(),
+  V6254 = int32(),
+  V6256 = int32(),
+  V0626 = int32(),
+  V6262 = int32(),
+  V6264 = int32(),
+  V6266 = int32(),
+  V0627 = int32(),
+  V0628 = int32(),
+  V0629 = int32(),
+  V0630 = int32(),
+  V0631 = int32(),
+  V0632 = int32(),
+  V0633 = int32(),
+  V0634 = int32(),
+  V0635 = int32(),
+  V6400 = int32(),
+  V6352 = int32(),
+  V6354 = int32(),
+  V6356 = int32(),
+  V0636 = int32(),
+  V6362 = int32(),
+  V6364 = int32(),
+  V6366 = int32(),
+  V0637 = int32(),
+  V0638 = int32(),
+  V0639 = int32(),
+  V0640 = int32(),
+  V0641 = int32(),
+  V0642 = int32(),
+  V0643 = int32(),
+  V0644 = int32(),
+  V0645 = int32(),
+  V6461 = int32(),
+  V6471 = int32(),
+  V0648 = int32(),
+  V0649 = int32(),
+  V0650 = int32(),
+  V0651 = int32(),
+  V6511 = int32(),
+  V6513 = int32(),
+  V6514 = double(),
+  V0652 = int32(),
+  V6521 = double(),
+  V6524 = double(),
+  V6525 = double(),
+  V6526 = double(),
+  V6527 = double(),
+  V6528 = double(),
+  V6529 = double(),
+  V6530 = double(),
+  V6531 = double(),
+  V6532 = double(),
+  V0653 = double(),
+  V0654 = int32(),
+  V0655 = int32(),
+  V0656 = int32(),
+  V0657 = int32(),
+  V0658 = int32(),
+  V0659 = int32(),
+  V6591 = int32(),
+  V0660 = int32(),
+  V6602 = int32(),
+  V6604 = int32(),
+  V6606 = int32(),
+  V0661 = int32(),
+  V0662 = int32(),
+  V0663 = int32(),
+  V6631 = int32(),
+  V6632 = int32(),
+  V6633 = int32(),
+  V0664 = int32(),
+  V6641 = double(),
+  V6642 = int32(),
+  V6643 = int32(),
+  V0665 = int32(),
+  V6660 = int32(),
+  V6664 = int32(),
+  V0667 = int32(),
+  V0668 = int32(),
+  V6681 = int32(),
+  V6682 = int32(),
+  V0669 = int32(),
+  V6691 = int32(),
+  V6692 = int32(),
+  V6693 = int32(),
+  V6800 = int32(),
+  V0670 = int32(),
+  V0671 = int32(),
+  V6900 = int32(),
+  V6910 = int32(),
+  V6920 = int32(),
+  V6930 = int32(),
+  V6940 = int32(),
+  V6121 = int32(),
+  V0604 = int32(),
+  V0605 = int32(),
+  V5020 = int32(),
+  V5060 = int32(),
+  V5070 = double(),
+  V5080 = double(),
+  V6462 = int32(),
+  V6472 = int32(),
+  V5110 = int32(),
+  V5120 = int32(),
+  V5030 = int32(),
+  V5040 = int32(),
+  V5090 = int32(),
+  V5100 = int32(),
+  V5130 = int32(),
+  M0502 = int32(),
+  M0601 = int32(),
+  M6033 = int32(),
+  M0606 = int32(),
+  M0613 = int32(),
+  M0614 = int32(),
+  M0615 = int32(),
+  M0616 = int32(),
+  M0617 = int32(),
+  M0618 = int32(),
+  M0619 = int32(),
+  M0620 = int32(),
+  M0621 = int32(),
+  M0622 = int32(),
+  M6222 = int32(),
+  M6224 = int32(),
+  M0623 = int32(),
+  M0624 = int32(),
+  M0625 = int32(),
+  M6252 = int32(),
+  M6254 = int32(),
+  M6256 = int32(),
+  M0626 = int32(),
+  M6262 = int32(),
+  M6264 = int32(),
+  M6266 = int32(),
+  M0627 = int32(),
+  M0628 = int32(),
+  M0629 = int32(),
+  M0630 = int32(),
+  M0631 = int32(),
+  M0632 = int32(),
+  M0633 = int32(),
+  M0634 = int32(),
+  M0635 = int32(),
+  M6352 = int32(),
+  M6354 = int32(),
+  M6356 = int32(),
+  M0636 = int32(),
+  M6362 = int32(),
+  M6364 = int32(),
+  M6366 = int32(),
+  M0637 = int32(),
+  M0638 = int32(),
+  M0639 = int32(),
+  M0640 = int32(),
+  M0641 = int32(),
+  M0642 = int32(),
+  M0643 = int32(),
+  M0644 = int32(),
+  M0645 = int32(),
+  M6461 = int32(),
+  M6471 = int32(),
+  M0648 = int32(),
+  M0649 = int32(),
+  M0650 = int32(),
+  M0651 = int32(),
+  M6511 = int32(),
+  M0652 = int32(),
+  M6521 = int32(),
+  M0653 = int32(),
+  M0654 = int32(),
+  M0655 = int32(),
+  M0656 = int32(),
+  M0657 = int32(),
+  M0658 = int32(),
+  M0659 = int32(),
+  M6591 = int32(),
+  M0660 = int32(),
+  M6602 = int32(),
+  M6604 = int32(),
+  M6606 = int32(),
+  M0661 = int32(),
+  M0662 = int32(),
+  M0663 = int32(),
+  M6631 = int32(),
+  M6632 = int32(),
+  M6633 = int32(),
+  M0664 = int32(),
+  M6641 = int32(),
+  M6642 = int32(),
+  M6643 = int32(),
+  M0665 = int32(),
+  M6660 = int32(),
+  M0667 = int32(),
+  M0668 = int32(),
+  M6681 = int32(),
+  M6682 = int32(),
+  M0669 = int32(),
+  M6691 = int32(),
+  M6692 = int32(),
+  M6693 = int32(),
+  M0670 = int32(),
+  M0671 = int32(),
+  M6800 = int32(),
+  M6121 = int32(),
+  M0604 = int32(),
+  M0605 = int32(),
+  M6462 = int32(),
+  M6472 = int32(),
+  V1005 = int32(),
+)
+
+
+
+
+df2 <- arrow::open_dataset('2010_population_v0.3.0.parquet', schema =aaa)
+df_new <- df %>% select(-ends_with("linear"))
+
+
+arrow::write_parquet(df2, 'pop_2010_integer.parquet')
+