Fix assertion failure when running \dit+.

The translate_columns array had 9 elements but the query returned 10 columns
when both tables and indexes were shown. Fixed by:
1. Expanding translate_columns array to 10 elements
2. Properly tracking cols_so_far when Storage column is added

Author: zhangyue1818

src/bin/psql/describe.c

@@ -5091,7 +5091,7 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
 	PGresult   *res;
 	printQueryOpt myopt = pset.popt;
 	int			cols_so_far;
-	bool		translate_columns[] = {false, false, true, false, false, false, false, false, false};
+	bool		translate_columns[] = {false, false, true, false, false, false, false, false, false, false};
 
 	/* If tabtypes is empty, we default to \dtvmsE (but see also command.c) */
 	if (!(showTables || showIndexes || showViews || showMatViews || showSeq || showForeign || showDirectory))
@@ -5164,6 +5164,8 @@ listTables(const char *tabtypes, const char *pattern, bool verbose, bool showSys
 			appendPQExpBuffer(&buf, " WHEN 'f' THEN '%s'", gettext_noop("foreign"));
 			appendPQExpBuffer(&buf, " END as \"%s\"\n", gettext_noop("Storage"));
 		}
+		translate_columns[cols_so_far] = true;
+		cols_so_far++;
 	}
 
 	if (showIndexes)

src/test/regress/expected/psql.out

@@ -2864,6 +2864,13 @@ Access method: heap_psql
  f2     | character(100) |           |          |         | extended |              | 
 Access method: heap
 
+\dit+ tbl_heap
+                                                         List of relations
+     Schema      |   Name   | Type  |        Owner         | Storage | Table | Persistence | Access method |  Size   | Description 
+-----------------+----------+-------+----------------------+---------+-------+-------------+---------------+---------+-------------
+ tableam_display | tbl_heap | table | regress_display_role | heap    |       | permanent   | heap          | 0 bytes | 
+(1 row)
+
 -- AM is displayed for tables, indexes and materialized views.
 \d+
                                                                  List of relations

src/test/regress/sql/psql.sql

@@ -477,6 +477,7 @@ CREATE MATERIALIZED VIEW mat_view_heap_psql USING heap_psql AS SELECT f1 from tb
 \set HIDE_TABLEAM off
 \d+ tbl_heap_psql
 \d+ tbl_heap
+\dit+ tbl_heap
 -- AM is displayed for tables, indexes and materialized views.
 \d+
 \dt+