May 20, 2020 · May 20, 2020
diff --git a/src/sqlParser.jison b/src/sqlParser.jison
diff --git a/src/stringify.js b/src/stringify.js
diff --git a/test/main.test.js b/test/main.test.js
Original file line number	Diff line number	Diff line change
Expand Up		@@ -50,6 +50,7 @@ IN return 'IN'
		SOUNDS return 'SOUNDS'
		LIKE return 'LIKE'
		ESCAPE return 'ESCAPE'
	CAST return 'CAST'
		REGEXP return 'REGEXP'
		IS return 'IS'
		UNKNOWN return 'UNKNOWN'
Expand Down Expand Up		@@ -343,6 +344,9 @@ case_when_else
		case_when
		: CASE case_expr_opt when_then_list case_when_else END { $$ = { type: 'CaseWhen', caseExprOpt: 2,ドル whenThenList: 3,ドル else: 4ドル } }
		;
	cast
	: CAST '(' expr AS IDENTIFIER ')' { $$ = { type: 'Cast', expr: 3,ドル castTo: 5ドル } }
	;
		simple_expr_prefix
		: '+' simple_expr %prec UPLUS { $$ = { type: 'Prefix', prefix: 1,ドル value: 2ドル } }
		\| '-' simple_expr %prec UMINUS { $$ = { type: 'Prefix', prefix: 1,ドル value: 2ドル } }
Expand All		@@ -361,6 +365,7 @@ simple_expr
		\| EXISTS '(' selectClause ')' { $$ = { type: 'SubQuery', value: 3,ドル hasExists: true } }
		\| '{' identifier expr '}' { $$ = { type: 'IdentifierExpr', identifier: 2,ドル value: 3ドル } }
		\| case_when { $$ = 1ドル }
	\| cast { $$ = 1ドル }
		;
		bit_expr
		: simple_expr { $$ = 1ドル }
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -225,6 +225,14 @@ Sql.prototype.travelCaseWhen = function(ast) {
		}
		this.appendKeyword('end');
		};
	Sql.prototype.travelCast = function(ast) {
	this.appendKeyword('cast');
	this.append('(', true, true);
	this.travel(ast.expr);
	this.appendKeyword('as');
	this.append(ast.castTo);
	this.append(')', true);
	};
		Sql.prototype.travelPrefix = function(ast) {
		this.appendKeyword(ast.prefix);
		this.travel(ast.value);
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -411,4 +411,19 @@ describe('select grammar support', function() {
		it('bugfix table alias2', function() {
		testParser('select a.* from a t1 join b t2 on t1.a = t2.a')
		})

	it('CAST support issue #9', function() {
	testParser(`select
	concat(dsw_cluster_name,',',logic_pod_name) as event_obj,
	concat(dsw_cluster_name,',',logic_pod_name, ' PFC STORM. 详情: ',
	'流量突跃 ', cast(FLOW_RX_BPS_RATE100 as int), '%(RX)',
	'; ', cast(FLOW_TX_BPS_RATE100 as int), '%(TX)',
	'; PFC 突增 ', cast(PFC_RX_PPS_RATE*100 as int), '%(RECV)') as brief
	from SOURCE_BASIC_EVENT_POD_FLOW_AND_PFC_TREND
	where win_end >= '2020年05月19日 21:14:12'
	and win_end < '2020年05月20日 21:14:12'
	and PFC_RX_PPS_RATE >= 100
	and (FLOW_RX_BPS_RATE <= -0.2 and FLOW_TX_BPS_RATE <= -0.2)
	`)
	})
		});