diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-header/query-dataset.001.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-header/query-dataset.001.ddl.sqlpp
index 54022fc..cef7274 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-header/query-dataset.001.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-header/query-dataset.001.ddl.sqlpp
@@ -33,5 +33,5 @@
 ("container"="playground"),
 ("definition"="data_dir"),
 ("format"="CSV"),
-("header"="true")
+("header"=true)
 );
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.007.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.007.ddl.sqlpp
index 047a540..6f96ecf 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.007.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.007.ddl.sqlpp
@@ -29,5 +29,5 @@
 ("definition"="data_dir"),
 ("format"="CSV"),
 ("header"="false"),
-("redact-warnings"="true")
+("redact-warnings"="True")
 );
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.010.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.010.ddl.sqlpp
index 575d46f..47daa38 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.010.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv-warnings/query-dataset.010.ddl.sqlpp
@@ -29,6 +29,6 @@
 ("definition"="data_dir"),
 ("format"="CSV"),
 ("header"="true"),
-("redact-warnings"="true"),
+("redact-warnings"=True),
 ("null"="\\N")
 );
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/csv/query-dataset.000.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/csv/query-dataset.000.ddl.sqlpp
index 54e0dc4..a63f3bc 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/csv/query-dataset.000.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/csv/query-dataset.000.ddl.sqlpp
@@ -33,6 +33,6 @@
 ("container"="playground"),
 ("definition"="csv-data/reviews/csv"),
 ("format"="Csv"),
-("header"="false"),
+("header"=False),
 ("null"="")
 );
\ No newline at end of file
diff --git a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/gz/query-dataset.000.ddl.sqlpp b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/gz/query-dataset.000.ddl.sqlpp
index 413987d..b8df075 100644
--- a/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/gz/query-dataset.000.ddl.sqlpp
+++ b/asterixdb/asterix-app/src/test/resources/runtimets/queries_sqlpp/external-dataset/aws/s3/csv/gz/query-dataset.000.ddl.sqlpp
@@ -33,6 +33,6 @@
 ("container"="playground"),
 ("definition"="csv-data/reviews/gz"),
 ("format"="Csv"),
-("header"="false"),
+("header"=false),
 ("null"="")
 );
\ No newline at end of file
diff --git a/asterixdb/asterix-external-data/src/main/java/org/apache/asterix/external/util/ExternalDataUtils.java b/asterixdb/asterix-external-data/src/main/java/org/apache/asterix/external/util/ExternalDataUtils.java
index 8fb17bc..2ae2838 100644
--- a/asterixdb/asterix-external-data/src/main/java/org/apache/asterix/external/util/ExternalDataUtils.java
+++ b/asterixdb/asterix-external-data/src/main/java/org/apache/asterix/external/util/ExternalDataUtils.java
@@ -23,7 +23,6 @@
 import static org.apache.asterix.external.util.ExternalDataConstants.KEY_QUOTE;
 import static org.apache.asterix.external.util.ExternalDataConstants.KEY_RECORD_END;
 import static org.apache.asterix.external.util.ExternalDataConstants.KEY_RECORD_START;
-import static org.apache.asterix.external.util.ExternalDataConstants.KEY_REDACT_WARNINGS;
 
 import java.util.EnumMap;
 import java.util.Map;
@@ -370,11 +369,10 @@
                 configuration.put(ExternalDataConstants.KEY_FORMAT, lowerCaseFormat);
             }
         }
-        // normalize the "header" parameter
-        paramValue = configuration.get(ExternalDataConstants.KEY_HEADER);
-        if (paramValue != null) {
-            configuration.put(ExternalDataConstants.KEY_HEADER, paramValue.toLowerCase().trim());
-        }
+        // normalize "header" parameter
+        putToLowerIfExists(configuration, ExternalDataConstants.KEY_HEADER);
+        // normalize "redact-warnings" parameter
+        putToLowerIfExists(configuration, ExternalDataConstants.KEY_REDACT_WARNINGS);
     }
 
     /**
@@ -395,9 +393,10 @@
         char delimiter = validateGetDelimiter(configuration);
         validateGetQuote(configuration, delimiter);
         validateGetEscape(configuration);
-        String value = configuration.get(KEY_REDACT_WARNINGS);
+        String value = configuration.get(ExternalDataConstants.KEY_REDACT_WARNINGS);
         if (value != null && !isBoolean(value)) {
-            throw new RuntimeDataException(ErrorCode.INVALID_REQ_PARAM_VAL, KEY_REDACT_WARNINGS, value);
+            throw new RuntimeDataException(ErrorCode.INVALID_REQ_PARAM_VAL, ExternalDataConstants.KEY_REDACT_WARNINGS,
+                    value);
         }
     }
 
@@ -430,4 +429,11 @@
             throw new RuntimeDataException(ErrorCode.INVALID_CHAR_LENGTH, parameterValue, parameterName);
         }
     }
+
+    private static void putToLowerIfExists(Map<String, String> configuration, String key) {
+        String paramValue = configuration.get(key);
+        if (paramValue != null) {
+            configuration.put(key, paramValue.toLowerCase().trim());
+        }
+    }
 }
diff --git a/asterixdb/asterix-lang-aql/src/main/javacc/AQL.jj b/asterixdb/asterix-lang-aql/src/main/javacc/AQL.jj
index 127dc62..4bf4ea4 100644
--- a/asterixdb/asterix-lang-aql/src/main/javacc/AQL.jj
+++ b/asterixdb/asterix-lang-aql/src/main/javacc/AQL.jj
@@ -1238,7 +1238,9 @@
   String value;
 }
 {
-  <LEFTPAREN> key = StringLiteral() <EQ> value = StringLiteral() <RIGHTPAREN>
+  <LEFTPAREN> key = StringLiteral()
+  <EQ>( value = StringLiteral() | (<TRUE> | <FALSE>) {value = token.image.toLowerCase();} )
+  <RIGHTPAREN>
     {
       return new Pair<String, String>(key, value);
     }
diff --git a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
index 107e240..7538887 100644
--- a/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
+++ b/asterixdb/asterix-lang-sqlpp/src/main/javacc/SQLPP.jj
@@ -1564,7 +1564,9 @@
   String value;
 }
 {
-  <LEFTPAREN> key = ConstantString() <EQ> value = ConstantString()  <RIGHTPAREN>
+  <LEFTPAREN> key = ConstantString()
+  <EQ> ( value = ConstantString() | (<TRUE> | <FALSE>) {value = token.image.toLowerCase();} )
+  <RIGHTPAREN>
     {
       return new Pair<String, String>(key, value);
     }