feat: update the builtin funcs of flinksql (#102)

* style: put evrry branch on a single line

* feat: support ASYMMETRIC and SYMMETRIC for between and

* feat: support SIMILAR TO predicate

* feat: support nested boolean expression

* feat: support escape to like and similar in flink sql

* test: add where clause test cases

* feat: add reservedKeywordsUsedAsFunctionName rule

* feat: add timepointLiteral rule and improve function call grammar

test/parser/flinksql/syntax/fixtures/selectWhere.sql

@@ -0,0 +1,27 @@
+SELECT id, age FROM table1 WHERE age IS NOT NULL;
+
+SELECT id, age FROM table1 WHERE age IS NOT DISTINCT FROM 12;
+
+SELECT id, age FROM table1 WHERE age BETWEEN SYMMETRIC 25 AND 18;
+
+SELECT id, age FROM table1 WHERE age NOT LIKE "%aa_d%" ESCAPE "a";
+
+SELECT addr FROM table1 WHERE addr NOT SIMILAR TO '%(123|yz)%' ESCAPE "y";
+
+SELECT id, age FROM table1 WHERE age NOT IN (18,19,20);
+
+SELECT id FROM table1 WHERE id NOT IN ( SELECT * FROM table2 );
+
+SELECT S,SNAME
+FROM S
+WHERE NOT EXISTS
+    (SELECT *
+    FROM C
+   	WHERE NOT EXISTS
+        (SELECT *
+        FROM SC
+        WHERE SC.S=S.S AND SC.C=C.C));
+
+SELECT id, age FROM table1 WHERE age > 18 OR id = 1;
+
+SELECT id, age FROM table1 WHERE age > 18 AND id > 10;

test/parser/flinksql/syntax/selectStatement.test.ts

@@ -11,7 +11,8 @@ const features = {
     aggregation: readSQL(__dirname, "selectAggregation.sql"),
     join: readSQL(__dirname, "selectJoin.sql"),
     setOperation: readSQL(__dirname, "selectSetOperations.sql"),
-    pattern: readSQL(__dirname, "selectPatternRecognition.sql")
+    pattern: readSQL(__dirname, "selectPatternRecognition.sql"),
+    where: readSQL(__dirname, "selectWhere.sql"),
 };
 
 describe("FlinkSQL Query Statement Tests", () => {
@@ -79,4 +80,12 @@ describe("FlinkSQL Query Statement Tests", () => {
             });
         })
     })
+
+    describe("Select Where", () => {
+        features.where.forEach((sql) => {
+            it(sql, () => {
+                expect(parser.validate(sql).length).toBe(0)
+            })
+        })
+    })
 });