[hotfix][python][docs] Correct the docs of interval join
diff --git a/docs/dev/table/tableApi.md b/docs/dev/table/tableApi.md
index 881ab4e..e71b9e0 100644
--- a/docs/dev/table/tableApi.md
+++ b/docs/dev/table/tableApi.md
@@ -1558,7 +1558,7 @@
left = t_env.from_path("Source1").select(col('a'), col('b'), col('c'), col('rowtime1'))
right = t_env.from_path("Source2").select(col('d'), col('e'), col('f'), col('rowtime2'))
-joined_table = left.join(right).where(left.a == right.d & left.rowtime1 >= right.rowtime2 - lit(1).second & left.rowtime1 <= right.rowtime2 + lit(2).seconds)
+joined_table = left.join(right).where((left.a == right.d) & (left.rowtime1 >= right.rowtime2 - lit(1).second) & (left.rowtime1 <= right.rowtime2 + lit(2).seconds))
result = joined_table.select(joined_table.a, joined_table.b, joined_table.e, joined_table.rowtime1)
{% endhighlight %}
</td>
diff --git a/docs/dev/table/tableApi.zh.md b/docs/dev/table/tableApi.zh.md
index f259290..a60a804 100644
--- a/docs/dev/table/tableApi.zh.md
+++ b/docs/dev/table/tableApi.zh.md
@@ -1557,7 +1557,7 @@
left = t_env.from_path("Source1").select(col('a'), col('b'), col('c'), col('rowtime1'))
right = t_env.from_path("Source2").select(col('d'), col('e'), col('f'), col('rowtime2'))
-joined_table = left.join(right).where(left.a == right.d & left.rowtime1 >= right.rowtime2 - lit(1).second & left.rowtime1 <= right.rowtime2 + lit(2).seconds)
+joined_table = left.join(right).where((left.a == right.d) & (left.rowtime1 >= right.rowtime2 - lit(1).second) & (left.rowtime1 <= right.rowtime2 + lit(2).seconds))
result = joined_table.select(joined_table.a, joined_table.b, joined_table.e, joined_table.rowtime1)
{% endhighlight %}
</td>
