diff --git a/contrib/babelfishpg_tsql/src/guc.c b/contrib/babelfishpg_tsql/src/guc.c
index 70412e6bc8..2d1a30f03c 100644
--- a/contrib/babelfishpg_tsql/src/guc.c
+++ b/contrib/babelfishpg_tsql/src/guc.c
@@ -9,6 +9,7 @@
 #include "pltsql.h"
 #include "pl_explain.h"
 #include "miscadmin.h"
+#include "access/parallel.h"
 
 #define PLTSQL_SESSION_ISOLATION_LEVEL "default_transaction_isolation"
 #define PLTSQL_TRANSACTION_ISOLATION_LEVEL "transaction_isolation"
@@ -380,6 +381,30 @@ static bool check_tsql_version (char **newval, void **extra, GucSource source)
 
 static void assign_enable_pg_hint (bool newval, void *extra)
 {
+	/*
+     * Parallel workers send data to the leader, not the client. They always
+     * send data using pg_hint_plan.enable_hint_plan.
+     */
+    if (IsParallelWorker())
+    {
+        /*
+         * During parallel worker startup, we want to accept the leader's
+         * hint_plan setting so that anyone who looks at the value in
+         * the worker sees the same value that they would see in the leader.
+         */
+        if (InitializingParallelWorker)
+            return;
+
+        /*
+         * A change other than during startup, for example due to a SET clause
+         * attached to a function definition, should be rejected, as there is
+         * nothing we can do inside the worker to make it take effect.
+         */
+        ereport(ERROR,
+                (errcode(ERRCODE_INVALID_TRANSACTION_STATE),
+                 errmsg("cannot change enable_hint_plan during a parallel operation")));
+    }
+
 	if (newval)
 	{
 		/* Will throw an error if pg_hint_plan is not installed */
diff --git a/test/JDBC/expected/BABEL-4294-vu-cleanup.out b/test/JDBC/expected/BABEL-4294-vu-cleanup.out
new file mode 100644
index 0000000000..27908b4de2
--- /dev/null
+++ b/test/JDBC/expected/BABEL-4294-vu-cleanup.out
@@ -0,0 +1,9 @@
+
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+drop table babel_4294_t1;
+drop table babel_4294_t2;
+drop table babel_4294_t3;
+go
+
+drop table babel_4294_t4;
+go
diff --git a/test/JDBC/expected/BABEL-4294-vu-prepare.out b/test/JDBC/expected/BABEL-4294-vu-prepare.out
new file mode 100644
index 0000000000..de31202caf
--- /dev/null
+++ b/test/JDBC/expected/BABEL-4294-vu-prepare.out
@@ -0,0 +1,20 @@
+
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+create table babel_4294_t1(id INT, val int);
+create table babel_4294_t2(babel_4294_t1_id INT, val int);
+create table babel_4294_t3(babel_4294_t1_id INT, val int);
+go
+
+insert into babel_4294_t1 values (1, 10), (2, 20), (3, 30);
+insert into babel_4294_t2 values (1, 11), (2, 12), (3, 13);
+insert into babel_4294_t3 values (1, 99), (2, 77), (3, 55);
+go
+~~ROW COUNT: 3~~
+
+~~ROW COUNT: 3~~
+
+~~ROW COUNT: 3~~
+
+
+create table babel_4294_t4(id INT, val int);
+go
diff --git a/test/JDBC/expected/BABEL-4294-vu-verify.out b/test/JDBC/expected/BABEL-4294-vu-verify.out
new file mode 100644
index 0000000000..26eb15be04
--- /dev/null
+++ b/test/JDBC/expected/BABEL-4294-vu-verify.out
@@ -0,0 +1,56 @@
+
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+/*
+ * Set the enable_pg_hint, try to create parallel worker
+ */
+exec sp_babelfish_configure 'enable_pg_hint', 'on', 'server'
+go
+
+select COUNT( babel_4294_t3.val), babel_4294_t2.val from babel_4294_t1
+inner join babel_4294_t2 on babel_4294_t1.id = babel_4294_t2.babel_4294_t1_id
+inner join babel_4294_t3 on babel_4294_t1.id = babel_4294_t3.babel_4294_t1_id
+GROUP BY babel_4294_t2.val
+UNION ALL
+select COUNT( babel_4294_t3.val), babel_4294_t2.val from babel_4294_t1
+inner join babel_4294_t2 on babel_4294_t1.id = babel_4294_t2.babel_4294_t1_id
+inner join babel_4294_t3 on babel_4294_t1.id = babel_4294_t3.babel_4294_t1_id
+GROUP BY babel_4294_t2.val
+go
+~~START~~
+int#!#int
+1#!#11
+1#!#13
+1#!#12
+1#!#11
+1#!#13
+1#!#12
+~~END~~
+
+
+-- Used force parallel mode to create a parallel worker
+select set_config('force_parallel_mode', '1', false)
+go
+~~START~~
+text
+on
+~~END~~
+
+
+-- to check if parallel worker generated for following query, will crash or not
+select * from babel_4294_t4
+go
+~~START~~
+int#!#int
+~~END~~
+
+
+select set_config('force_parallel_mode', '0', false)
+go
+~~START~~
+text
+off
+~~END~~
+
+
+exec sp_babelfish_configure 'enable_pg_hint', 'off', 'server'
+go
diff --git a/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-cleanup.sql b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-cleanup.sql
new file mode 100644
index 0000000000..9a5b6bb6f8
--- /dev/null
+++ b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-cleanup.sql
@@ -0,0 +1,9 @@
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+
+drop table babel_4294_t1;
+drop table babel_4294_t2;
+drop table babel_4294_t3;
+go
+
+drop table babel_4294_t4;
+go
\ No newline at end of file
diff --git a/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-prepare.sql b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-prepare.sql
new file mode 100644
index 0000000000..3cff14194b
--- /dev/null
+++ b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-prepare.sql
@@ -0,0 +1,14 @@
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+
+create table babel_4294_t1(id INT, val int);
+create table babel_4294_t2(babel_4294_t1_id INT, val int);
+create table babel_4294_t3(babel_4294_t1_id INT, val int);
+go
+
+insert into babel_4294_t1 values (1, 10), (2, 20), (3, 30);
+insert into babel_4294_t2 values (1, 11), (2, 12), (3, 13);
+insert into babel_4294_t3 values (1, 99), (2, 77), (3, 55);
+go
+
+create table babel_4294_t4(id INT, val int);
+go
\ No newline at end of file
diff --git a/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-verify.sql b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-verify.sql
new file mode 100644
index 0000000000..cdd1e3daef
--- /dev/null
+++ b/test/JDBC/input/pg_hint_plan/BABEL-4294-vu-verify.sql
@@ -0,0 +1,32 @@
+-- Test to check if initialisation of Parallel Worker crash when babelfishpg_tsql.enable_pg_hint is set
+/*
+ * Set the enable_pg_hint, try to create parallel worker
+ */
+
+exec sp_babelfish_configure 'enable_pg_hint', 'on', 'server'
+go
+
+select COUNT( babel_4294_t3.val), babel_4294_t2.val from babel_4294_t1
+inner join babel_4294_t2 on babel_4294_t1.id = babel_4294_t2.babel_4294_t1_id
+inner join babel_4294_t3 on babel_4294_t1.id = babel_4294_t3.babel_4294_t1_id
+GROUP BY babel_4294_t2.val
+UNION ALL
+select COUNT( babel_4294_t3.val), babel_4294_t2.val from babel_4294_t1
+inner join babel_4294_t2 on babel_4294_t1.id = babel_4294_t2.babel_4294_t1_id
+inner join babel_4294_t3 on babel_4294_t1.id = babel_4294_t3.babel_4294_t1_id
+GROUP BY babel_4294_t2.val
+go
+
+-- Used force parallel mode to create a parallel worker
+select set_config('force_parallel_mode', '1', false)
+go
+
+-- to check if parallel worker generated for following query, will crash or not
+select * from babel_4294_t4
+go
+
+select set_config('force_parallel_mode', '0', false)
+go
+
+exec sp_babelfish_configure 'enable_pg_hint', 'off', 'server'
+go
\ No newline at end of file