Fix the wrong parsing of creating materialized view statements

[Lance726]

The correct syntax for create materialized view is:

CREATE MATERIALIZED VIEW [IF NOT EXISTS] [db.]table_name [ON CLUSTER] [TO[db.]name] [ENGINE = engine] [POPULATE] AS SELECT ...

Our original parsing implement from antlr, process was wrong, now it is fixed.

example:

CREATE
MATERIALIZED VIEW infra_bm.view_name 
    ON CLUSTER 'default_cluster' TO infra_bm.table_name
(
  `f1` DateTime64(3), 
  `f2` String, 
  `f3` String, 
  `f4` String, 
  `f5` String, 
  `f6` Int64
) AS
SELECT f1,
       f2,
       visitParamExtractString(properties, 'f3')   AS f3,
       visitParamExtractString(properties, 'f4')      AS f4,
       visitParamExtractString(properties, 'f5')    AS f5,
    visitParamExtractInt(properties, 'f6') AS f6
FROM
    infra_bm.table_name1
WHERE
    infra_bm.table_name1.event = 'test-event';

[coveralls]

Pull Request Test Coverage Report for Build 8062032829

Details

• -4 of 15 (73.33%) changed or added relevant lines in 2 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.009%) to 56.407%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
parser/ast.go	7	9	77.78%
parser/parser_view.go	4	6	66.67%

Totals
Change from base Build 7853328021:	-0.009%
Covered Lines:	5423
Relevant Lines:	9614

---

💛 - Coveralls

[Lance726]

Our original implementation is based on antlr, which looks a little different from the actual syntax.