feat: 添加根据列全名解析表别名方法

hsweb-easy-orm-rdb/src/main/java/org/hswebframework/ezorm/rdb/operator/builder/fragments/term/AbstractTermFragmentBuilder.java

@@ -5,6 +5,7 @@
 import org.hswebframework.ezorm.core.param.Term;
 import org.hswebframework.ezorm.rdb.metadata.RDBColumnMetadata;
 import org.hswebframework.ezorm.rdb.metadata.TableOrViewMetadata;
+import org.hswebframework.ezorm.rdb.metadata.dialect.Dialect;
 import org.hswebframework.ezorm.rdb.operator.builder.fragments.NativeSql;
 import org.hswebframework.ezorm.rdb.operator.builder.fragments.PrepareSqlFragments;
 import org.hswebframework.ezorm.rdb.operator.builder.fragments.TermFragmentBuilder;
@@ -115,4 +116,35 @@ protected PrepareSqlFragments appendPrepareOrNative(PrepareSqlFragments sql, Obj
         }
         return sql;
     }
+
+
+    /**
+     * 根据字段全名获取表别名
+     *
+     * @param columnFullName 列全名
+     * @param dialect        数据库方言
+     * @return 表别名
+     */
+    protected static Optional<String> parseTablePlainName(String columnFullName, Dialect dialect) {
+        if (columnFullName.contains(".")) {
+            String[] split = parsePlainName(columnFullName, dialect).split("\\.");
+            return Optional.of(split[0]);
+        }
+        return Optional.empty();
+    }
+
+    protected static String parsePlainName(String name, Dialect dialect) {
+        if (name == null || name.isEmpty()) {
+            return null;
+        }
+        char firstChar = name.charAt(0);
+
+        if (firstChar == '`' || firstChar == '"' || firstChar == '[' ||
+            name.startsWith(dialect.getQuoteStart())) {
+
+            return new String(name.toCharArray(), 1, name.length() - 2);
+        }
+
+        return name;
+    }
 }