diff -r 3bcb28cbf655 -r 0c050899c77f src/CLIParser.h
--- a/src/CLIParser.h	Sun Oct 27 19:49:22 2019 +0100
+++ b/src/CLIParser.h	Tue Oct 29 12:09:38 2019 +0100
@@ -67,6 +67,7 @@
 	static const string_t OPTION_BEFORE_RECORDS;
 	static const string_t OPTION_AFTER_RECORDS;
 	static const string_t OPTION_FOR_EACH;
+	static const string_t OPTION_WHERE;
 	static const string_t OPTION_DROP;
 	static const string_t OPTION_DEFINE;
 
@@ -80,6 +81,7 @@
 			if (option == OPTION_BEFORE_RECORDS) currentRelation.awkBeforeRecords = readNext(arguments, i);
 			else if (option == OPTION_AFTER_RECORDS) currentRelation.awkAfterRecords = readNext(arguments, i);
 			else if (option == OPTION_FOR_EACH) currentRelation.awkForEach = readNext(arguments, i);
+			else if (option == OPTION_WHERE) currentRelation.awkForEach = L"(" + readNext(arguments, i) + L")";
 			else if (option == OPTION_DROP) currentRelation.drop = true;
 			else if (option == OPTION_INPUT_ATTRIBUTES_APPEND) currentRelation.inputAttributesAppend = true;
 			else if (option == OPTION_INPUT_ATTRIBUTES_PREPEND) currentRelation.inputAttributesPrepend = true;
@@ -118,6 +120,7 @@
 const string_t CLIParser::OPTION_BEFORE_RECORDS = L"--before-records";
 const string_t CLIParser::OPTION_AFTER_RECORDS = L"--after-records";
 const string_t CLIParser::OPTION_FOR_EACH = L"--for-each";
+const string_t CLIParser::OPTION_WHERE = L"--where";
 const string_t CLIParser::OPTION_DROP = L"--drop";
 const string_t CLIParser::OPTION_DEFINE = L"--define";