aokolnychyi commented on code in PR #50519:
URL: https://github.com/apache/spark/pull/50519#discussion_r2037801684


##########
sql/catalyst/src/main/java/org/apache/spark/sql/connector/catalog/TableInfo.java:
##########
@@ -77,8 +83,22 @@ public Builder withPartitions(Transform[] partitions) {
       return this;
     }
 
+    public Builder withConstraints(Constraint[] constraints) {
+      this.constraints = constraints;
+      return this;
+    }
+
     public TableInfo build() {
       checkNotNull(columns, "columns should not be null");
+      if (properties == null) {

Review Comment:
   What did we pass to connectors before we added `TableInfo` for properties 
and partitions? Nulls or empty map/array? We should be consistent.
   
   If we need to pass empty map/array, can we move the defaults to the variable 
definitions?
   
   ```
   private Map<String, String> properties = Maps.newHashMap();
   private Transform[] partitions = new Transform[0];
   private Constraint[] constraints = new Constraint[0];
   ```
   



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