perf: added check for empty pattern

Signed-off-by: Calum Murray <[email protected]>
cloudevents · May 9, 2024 · 19fd3f2 · 19fd3f2
1 parent 782e776
commit 19fd3f2
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/sql/v2/expression/like_expression.go b/sql/v2/expression/like_expression.go
@@ -48,6 +48,10 @@ func matchString(text, pattern string) bool {
 	lastWildcardIdx := -1
 	lastMatchIdx := 0
 
+	if patternLen == 0 {
+		return patternLen == textLen
+	}
+
 	for textIdx < textLen {
 		if patternIdx < patternLen-1 && pattern[patternIdx] == '\\' &&
 			((pattern[patternIdx+1] == '_' || pattern[patternIdx+1] == '%') &&