RussellSpitzer commented on code in PR #4902:
URL: https://github.com/apache/iceberg/pull/4902#discussion_r884960319


##########
docs/spark/spark-procedures.md:
##########
@@ -268,6 +268,7 @@ Iceberg can compact data files in parallel using Spark with 
the `rewriteDataFile
 | `sort_order`  |    | string | Comma separated sort_order_column. Where 
sort_order_column is a space separated sort order info per column (ColumnName 
SortDirection NullOrder). <br/> SortDirection can be ASC or DESC. NullOrder can 
be NULLS FIRST or NULLS LAST |
 | `options`     | ️   | map<string, string> | Options to be used for actions|
 | `where`       | ️   | string | predicate as a string used for filtering the 
files. Note that all files that may contain data matching the filter will be 
selected for rewriting|
+| `z_order`     |    | string | Comma separated column names that are to be 
considered for z ordering |

Review Comment:
   Instead of adding a new parameter we should probably just make this a 
special case of sort order, which is what we mean to eventually do anyway



##########
docs/spark/spark-procedures.md:
##########
@@ -268,6 +268,7 @@ Iceberg can compact data files in parallel using Spark with 
the `rewriteDataFile
 | `sort_order`  |    | string | Comma separated sort_order_column. Where 
sort_order_column is a space separated sort order info per column (ColumnName 
SortDirection NullOrder). <br/> SortDirection can be ASC or DESC. NullOrder can 
be NULLS FIRST or NULLS LAST |
 | `options`     | ️   | map<string, string> | Options to be used for actions|
 | `where`       | ️   | string | predicate as a string used for filtering the 
files. Note that all files that may contain data matching the filter will be 
selected for rewriting|
+| `z_order`     |    | string | Comma separated column names that are to be 
considered for z ordering |

Review Comment:
   Instead of adding a new parameter we should probably just make this a 
special case of sort order, which is what we mean to eventually do anyway 
internally



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