Fixed CORE-4809: HASH/MERGE JOIN is not used for more than two stream…

…s if they are joined via USING/NATURAL clauses and join is based on DBKEY concatenations.
FirebirdSQL · May 31, 2015 · cb6ddcd · cb6ddcd
1 parent 6db7526
commit cb6ddcd
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/common/dsc.h b/src/common/dsc.h
@@ -182,6 +182,9 @@ typedef struct dsc
 			return CS_BINARY;
 		}
 
+		if (isDbKey())
+			return CS_BINARY;
+
 		return CS_NONE;
 	}
 
@@ -198,6 +201,9 @@ typedef struct dsc
 			return CS_BINARY;
 		}
 
+		if (isDbKey())
+			return CS_BINARY;
+
 		return CS_NONE;
 	}