MDEV-25143 JSON_TABLE: Server crashes in handler::print_error / hton_name upon ERROR ON EMPTY.

should return some error code from ha_json_table::rnd_pos() not just 1.

mysql-test/suite/json/r/json_table.result

@@ -508,5 +508,10 @@ a
 EXECUTE stmt;
 a
 #
+# MDEV-JSON_TABLE: Server crashes in handler::print_error / hton_name upon ERROR ON EMPTY
+#
+SELECT a, b FROM JSON_TABLE('[]', '$' COLUMNS (a FOR ORDINALITY, b INT PATH '$[*]' ERROR ON EMPTY)) AS t ORDER BY a;
+ERROR HY000: Field 'b' can't be set for JSON_TABLE 't'.
+#
 # End of 10.6 tests
 #

mysql-test/suite/json/t/json_table.test

@@ -395,6 +395,12 @@ PREPARE stmt FROM "SELECT * FROM (SELECT * FROM JSON_TABLE(LOAD_FILE('x'), '$' C
 EXECUTE stmt;
 EXECUTE stmt;
 
+--echo #
+--echo # MDEV-JSON_TABLE: Server crashes in handler::print_error / hton_name upon ERROR ON EMPTY
+--echo #
+--error ER_JSON_TABLE_ERROR_ON_FIELD
+SELECT a, b FROM JSON_TABLE('[]', '$' COLUMNS (a FOR ORDINALITY, b INT PATH '$[*]' ERROR ON EMPTY)) AS t ORDER BY a;
+
 --echo #
 --echo # End of 10.6 tests
 --echo #

sql/json_table.cc

@@ -445,7 +445,7 @@ int ha_json_table::fill_column_values(uchar * buf, uchar *pos)
 
 int ha_json_table::rnd_pos(uchar * buf, uchar *pos)
 {
-  return fill_column_values(buf, pos);
+  return fill_column_values(buf, pos) ? HA_ERR_TABLE_IN_FK_CHECK : 0;
 }