bug修复-非保留关键字ignore，作为列名时报错

src/common/backend/parser/gram.y

@@ -28562,6 +28562,7 @@ unreserved_keyword:
 			| IDENTIFIED
 			| IDENTITY_P
 			| IF_P
+			| IGNORE
 			| IGNORE_EXTRA_DATA
 			| IMMEDIATE
 			| IMMUTABLE

src/test/regress/expected/create_table.out

@@ -366,6 +366,7 @@ CREATE TABLE resource(a int);
 CREATE TABLE store(a int);
 CREATE TABLE than(a int);
 CREATE TABLE workload(a int);
+CREATE TABLE ignore(ignore int);
 DROP TABLE app;
 DROP TABLE movement;
 DROP TABLE pool;
@@ -374,6 +375,7 @@ DROP TABLE resource;
 DROP TABLE store;
 DROP TABLE than;
 DROP TABLE workload;
+DROP TABLE ignore;
 -- test orientation
 CREATE TABLE orientation_test_1 (c1 int) WITH (orientation = column);
 CREATE TABLE orientation_test_2 (c1 int) WITH (orientation = 'column');

src/test/regress/sql/create_table.sql

@@ -376,6 +376,7 @@ CREATE TABLE resource(a int);
 CREATE TABLE store(a int);
 CREATE TABLE than(a int);
 CREATE TABLE workload(a int);
+CREATE TABLE ignore(ignore int);
 
 DROP TABLE app;
 DROP TABLE movement;
@@ -385,6 +386,7 @@ DROP TABLE resource;
 DROP TABLE store;
 DROP TABLE than;
 DROP TABLE workload;
+DROP TABLE ignore;
 
 -- test orientation
 CREATE TABLE orientation_test_1 (c1 int) WITH (orientation = column);