huaxingao commented on a change in pull request #3757:
URL: https://github.com/apache/iceberg/pull/3757#discussion_r769918521
##########
File path:
spark/v3.2/spark/src/main/java/org/apache/iceberg/spark/procedures/RewriteDataFilesProcedure.java
##########
@@ -109,19 +110,23 @@ public StructType outputType() {
}
String where = args.isNullAt(4) ? null : args.getString(4);
- action = checkAndApplyFilter(action, where);
+ action = checkAndApplyFilter(action, where, table.name());
RewriteDataFiles.Result result = action.execute();
return toOutputRows(result);
});
}
- private RewriteDataFiles checkAndApplyFilter(RewriteDataFiles action, String
where) {
+ private RewriteDataFiles checkAndApplyFilter(RewriteDataFiles action, String
where, String tableName) {
if (where != null) {
+ // Add a dummy prefix linking to the table to collect the resolved spark
expression from analyzed plan.
+ String prefix = String.format("SELECT count(*) from %s where ",
tableName);
Review comment:
I think there is no need to have an aggregate function here. A simple
query `SELECT 1 from %s where` is sufficient.
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