improve sqlwall

2023-03-04 19:17:16 +00:00 · 2014-08-26 14:23:01 +08:00
parent 5a5225f33e
commit 192a683339
2 changed files with 50 additions and 1 deletions
@@ -2153,7 +2153,18 @@ public class WallVisitorUtils {
            SQLTableSource from = queryBlock.getFrom();

            if (from == null) {
-                return true;
+                boolean itemIsConst = true;
+                for (SQLSelectItem item : queryBlock.getSelectList()) {
+                    if (item.getExpr() instanceof SQLIdentifierExpr || item.getExpr() instanceof SQLPropertyExpr) {
+                        itemIsConst = false;
+                        break;
+                    }
+                }
+                if (itemIsConst) {
+                    return true;
+                } else {
+                    return false;
+                }
            }

            if (from instanceof SQLExprTableSource) {