implement allocation free fast path for isBoolean and isNull (#41)

DataDog · Nov 12, 2024 · 96160b1 · 96160b1
1 parent 8c03f53
commit 96160b1
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/sqllexer_utils.go b/sqllexer_utils.go
@@ -247,10 +247,20 @@ func isProcedure(token *Token) bool {
 }
 
 func isBoolean(ident string) bool {
+	// allocation free fast path for common cases
+	if ident == "true" || ident == "false" || ident == "TRUE" || ident == "FALSE" {
+		return true
+	}
+
 	return strings.ToUpper(ident) == "TRUE" || strings.ToUpper(ident) == "FALSE"
 }
 
 func isNull(ident string) bool {
+	// allocation free fast path for common cases
+	if ident == "null" || ident == "NULL" {
+		return true
+	}
+
 	return strings.ToUpper(ident) == "NULL"
 }