MDEV-26695: Number of an invalid row is not calculated for table value

constructor

Analysis: counter does not increment while sending rows for table value
constructor and so row_number assumes the default value (0 in this case).
Fix: Increment the counter to avoid counter using default value.

mysql-test/main/get_diagnostics.result

@@ -790,3 +790,13 @@ GET DIAGNOSTICS @var1 = NUMBER;
 SHOW STATUS LIKE 'Com%get_diagnostics';
 Variable_name	Value
 Com_get_diagnostics	1
+#
+# MDEV-26695: Number of an invalid row is not calculated for table value constructor
+#
+CREATE TABLE t1 (a CHAR(1)) VALUES ('a'),('b'),('foo');
+Warnings:
+Warning	1406	Data too long for column 'a' at row 3
+CREATE TABLE t2 (a char(1)) VALUES ('a'),('b') UNION VALUES ('foo');
+Warnings:
+Warning	1406	Data too long for column 'a' at row 3
+DROP TABLE t1, t2;

mysql-test/main/get_diagnostics.test

@@ -851,3 +851,12 @@ FLUSH STATUS;
 SHOW STATUS LIKE 'Com%get_diagnostics';
 GET DIAGNOSTICS @var1 = NUMBER;
 SHOW STATUS LIKE 'Com%get_diagnostics';
+
+--echo #
+--echo # MDEV-26695: Number of an invalid row is not calculated for table value constructor
+--echo #
+
+CREATE TABLE t1 (a CHAR(1)) VALUES ('a'),('b'),('foo');
+CREATE TABLE t2 (a char(1)) VALUES ('a'),('b') UNION VALUES ('foo');
+
+DROP TABLE t1, t2;

sql/sql_tvc.cc

@@ -406,9 +406,11 @@ bool table_value_constr::exec(SELECT_LEX *sl)
 
   while ((elem= li++))
   {
+    THD *cur_thd= sl->parent_lex->thd;
     if (send_records >= sl->master_unit()->select_limit_cnt)
       break;
     int rc= result->send_data(*elem);
+    cur_thd->get_stmt_da()->inc_current_row_for_warning();
     if (!rc)
       send_records++;
     else if (rc > 0)