Fix for bug#38821: Assert table->auto_increment_field_not_null failed

in open_table()

Problem: repeating "CREATE... ( AUTOINCREMENT) ... SELECT" may lead to
an assertion failure.

Fix: reset table->auto_increment_field_not_null after each record 
writing.


mysql-test/r/create.result:
  Fix for bug#38821: Assert table->auto_increment_field_not_null failed 
  in open_table()
    - test result.
mysql-test/t/create.test:
  Fix for bug#38821: Assert table->auto_increment_field_not_null failed 
  in open_table()
    - test case.
sql/sql_insert.cc:
  Fix for bug#38821: Assert table->auto_increment_field_not_null failed 
  in open_table()
    - reset table->auto_increment_field_not_null after writing a record
  for "{CREATE, INSERT}..SELECT".

1 files changed, 18 insertions, 0 deletions

diff --git a/mysql-test/t/create.test b/mysql-test/t/create.test
index 97a7ea71b29..61ee40477ee 100644
--- a/mysql-test/t/create.test
+++ b/mysql-test/t/create.test
@@ -1172,4 +1172,22 @@ SHOW INDEX FROM t1;
 DROP TABLE t1;
 
 
+#
+# Bug#38821: Assert table->auto_increment_field_not_null failed in open_table()
+#
+CREATE TABLE t1 (a INTEGER AUTO_INCREMENT PRIMARY KEY, b INTEGER NOT NULL);
+INSERT IGNORE INTO t1 (b) VALUES (5);
+
+CREATE TABLE IF NOT EXISTS t2 (a INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY)
+  SELECT a FROM t1;
+--error 1062
+CREATE TABLE IF NOT EXISTS t2 (a INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY)
+  SELECT a FROM t1;
+--error 1062
+CREATE TABLE IF NOT EXISTS t2 (a INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY)
+  SELECT a FROM t1;
+
+DROP TABLE t1, t2;
+
+
 --echo End of 5.0 tests