[YSQL] 1049 ASAN reported memory leaks in Postgres

Summary:
This happens for '\d' command.  This command is commented out from our test for now.
Once it is fixed, we'll add it back to the test.

A bug has been found
#1049

Test Plan: run java::pgsql tests

Reviewers: mikhail

Reviewed By: mikhail

Subscribers: yql

Differential Revision: https://phabricator.dev.yugabyte.com/D6370

src/postgres/src/test/regress/expected/yb_bit.out

@@ -556,14 +556,10 @@ CREATE TABLE bit_defaults(
   b3 bit varying(5) DEFAULT '1001',
   b4 bit varying(5) DEFAULT B'0101'
 );
-\d bit_defaults
-                     Table "public.bit_defaults"
- Column |      Type      | Collation | Nullable |       Default
---------+----------------+-----------+----------+---------------------
- b1     | bit(4)         |           |          | '1001'::"bit"
- b2     | bit(4)         |           |          | '0101'::"bit"
- b3     | bit varying(5) |           |          | '1001'::bit varying
- b4     | bit varying(5) |           |          | '0101'::"bit"
-
+-- Describing table with default values causes memory leaks in Postgres code.
+-- TODO(neil) Add the test case back after the following github is fixed.
+--   https://github.com/YugaByte/yugabyte-db/issues/1049
+--
+-- \d bit_defaults
 -- INSERT INTO bit_defaults DEFAULT VALUES;
 -- TABLE bit_defaults;

src/postgres/src/test/regress/sql/yb_bit.sql

@@ -203,6 +203,10 @@ CREATE TABLE bit_defaults(
   b3 bit varying(5) DEFAULT '1001',
   b4 bit varying(5) DEFAULT B'0101'
 );
-\d bit_defaults
+-- Describing table with default values causes memory leaks in Postgres code.
+-- TODO(neil) Add the test case back after the following github is fixed.
+--   https://github.com/YugaByte/yugabyte-db/issues/1049
+--
+-- \d bit_defaults
 -- INSERT INTO bit_defaults DEFAULT VALUES;
 -- TABLE bit_defaults;