Add missing tags to GetCommandLogLevel.

Otherwise, log_statement = 'ddl' causes errors if those statement
types are used.

Michael Paquier, reviewed by Ashutosh Sharma

Discussion: http://postgr.es/m/CAB7nPqStC3HkE76Q1MnHsVd1vF1Td9zXApzYadzDMyLMRkkGrw@mail.gmail.com

src/backend/tcop/utility.c

@@ -3007,6 +3007,10 @@ GetCommandLogLevel(Node *parsetree)
 			lev = LOGSTMT_DDL;
 			break;
 
+		case T_AlterOperatorStmt:
+			lev = LOGSTMT_DDL;
+			break;
+
 		case T_AlterTableMoveAllStmt:
 		case T_AlterTableStmt:
 			lev = LOGSTMT_DDL;
@@ -3291,6 +3295,14 @@ GetCommandLogLevel(Node *parsetree)
 			lev = LOGSTMT_DDL;
 			break;
 
+		case T_CreateStatsStmt:
+			lev = LOGSTMT_DDL;
+			break;
+
+		case T_AlterCollationStmt:
+			lev = LOGSTMT_DDL;
+			break;
+
 			/* already-planned queries */
 		case T_PlannedStmt:
 			{