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Signed-off-by: AilinKid <314806019@qq.com>
pingcap · May 6, 2023 · ecae432 · ecae432
1 parent d62e8e5
commit ecae432
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/expression/scalar_function.go b/expression/scalar_function.go
@@ -440,7 +440,7 @@ func (sf *ScalarFunction) EvalJSON(ctx sessionctx.Context, row chunk.Row) (types
 
 // HashCode implements Expression interface.
 func (sf *ScalarFunction) HashCode(sc *stmtctx.StatementContext) []byte {
-	if sc.CanonicalHashCode {
+	if sc != nil && sc.CanonicalHashCode {
 		if len(sf.canonicalhashcode) > 0 {
 			return sf.canonicalhashcode
 		}