start migrating to long paths

Author: schauder

spring-data-relational/src/main/java/org/springframework/data/relational/core/mapping/AggregatePath.java

@@ -486,6 +486,7 @@ class ColumnInfos {
 
 		private final AggregatePath basePath;
 		private final Map<AggregatePath, ColumnInfo> columnInfos;
+		private final Map<AggregatePath, ColumnInfo> longColumnInfos;
 		private final Map<Table, List<Column>> columnCache;
 
 		/**
@@ -499,6 +500,8 @@ class ColumnInfos {
 
 			this.basePath = basePath;
 			this.columnInfos = columnInfos;
+			this.longColumnInfos = new HashMap<>();
+			columnInfos.forEach((ap, ci) -> longColumnInfos.put(fullPath(ap), ci));
 			this.columnCache = new HashMap<>(columnInfos.size(), 1f);
 		}
 
@@ -657,7 +660,7 @@ public Iterable<AggregatePath> paths() {
 		 * @return {@literal true} iff the collection of {@literal ColumnInfo} is empty.
 		 */
 		public boolean isEmpty() {
-			return columnInfos.isEmpty();
+			return longColumnInfos.isEmpty();
 		}
 
 		/**
@@ -666,7 +669,7 @@ public boolean isEmpty() {
 		 * @return the size of the collection of {@literal ColumnInfo}.
 		 */
 		public int size() {
-			return columnInfos.size();
+			return longColumnInfos.size();
 		}
 	}