added some keywords for alias name that allowed by ClickHouse

Author: chernser

jdbc-v2/src/main/antlr4/com/clickhouse/jdbc/internal/ClickHouseParser.g4

@@ -976,6 +976,15 @@ keywordForAlias
     | ID
     | KEY
     | SOURCE
+    | AFTER
+    | CASE
+    | CLUSTER
+    | CURRENT
+    | INDEX
+    | TABLES
+    | TEST
+    | VIEW
+    | PRIMARY
     ;
 
 alias

jdbc-v2/src/test/java/com/clickhouse/jdbc/internal/SqlParserTest.java

@@ -283,6 +283,16 @@ public Object[][] testMiscStmtDp() {
             {"SELECT INTERVAL 1 day", 0},
             {"SELECT * FROM table key WHERE ts = ?", 1},
             {"SELECT * FROM table source WHERE ts = ?", 1},
+            {"SELECT * FROM table after WHERE ts = ?", 1},
+            {"SELECT * FROM table before WHERE ts = ?", 1},
+            {"SELECT * FROM table case WHERE ts = ?", 1},
+            {"SELECT * FROM table cluster WHERE ts = ?", 1},
+            {"SELECT * FROM table current WHERE ts = ?", 1},
+            {"SELECT * FROM table index WHERE ts = ?", 1},
+            {"SELECT * FROM table tables WHERE ts = ?", 1},
+            {"SELECT * FROM table test WHERE ts = ?", 1},
+            {"SELECT * FROM table view WHERE ts = ?", 1},
+            {"SELECT * FROM table primary WHERE ts = ?", 1},
         };
     }
 }