diff --git a/bi-connectors/TableauConnector/opensearch_sql_jdbc/dialect.tdd b/bi-connectors/TableauConnector/opensearch_sql_jdbc/dialect.tdd
index e5a744cbe2..0e5dd3723f 100644
--- a/bi-connectors/TableauConnector/opensearch_sql_jdbc/dialect.tdd
+++ b/bi-connectors/TableauConnector/opensearch_sql_jdbc/dialect.tdd
@@ -49,7 +49,7 @@
             <argument type='date' />
         </function>
         <function group='cast' name='STR' return-type='str'>
-            <formula>CAST(%1 AS STRING)</formula>
+            <formula>CASE WHEN ISNULL(%1) THEN NULL WHEN %1 = TRUE THEN &apos;1&apos; WHEN %1 = FALSE THEN &apos;0&apos; END</formula>
             <argument type='bool' />
         </function>
         <function group='cast' name='INT' return-type='int'>
diff --git a/bi-connectors/TableauConnector/opensearch_sql_jdbc/manifest.xml b/bi-connectors/TableauConnector/opensearch_sql_jdbc/manifest.xml
index 1ea29b9e82..29717ff406 100644
--- a/bi-connectors/TableauConnector/opensearch_sql_jdbc/manifest.xml
+++ b/bi-connectors/TableauConnector/opensearch_sql_jdbc/manifest.xml
@@ -13,7 +13,7 @@
       <customization name="CAP_SUPPRESS_DISCOVERY_QUERIES" value="yes" />
       <customization name="CAP_SELECT_INTO" value="no"/>
       <customization name="CAP_SELECT_TOP_INTO" value="no"/>
-      <customization name="CAP_QUERY_BOOLEXPR_TO_INTEXPR" value="yes"/>
+      <customization name="CAP_QUERY_BOOLEXPR_TO_INTEXPR" value="no"/>
       <customization name="CAP_QUERY_GROUP_BY_ALIAS" value="yes"/>
       <customization name="CAP_QUERY_GROUP_BY_BOOL" value="yes"/>
       <customization name="CAP_QUERY_GROUP_BY_DEGREE" value="no"/>