MDEV-11952 Oracle-style packages: stage#5

- CREATE PACKAGE [BODY] statements are now
  entirely written to mysql.proc with type='PACKAGE' and type='PACKAGE BODY'.
- CREATE PACKAGE BODY now supports IF NOT EXISTS
- DROP PACKAGE BODY now supports IF EXISTS
- CREATE OR REPLACE PACKAGE [BODY] is now supported
- CREATE PACKAGE [BODY] now support the DEFINER clause:

    CREATE DEFINER user@host PACKAGE pkg ... END;
    CREATE DEFINER user@host PACKAGE BODY pkg ... END;

- CREATE PACKAGE [BODY] now supports SQL SECURITY and COMMENT clauses, e.g.:

    CREATE PACKAGE p1 SQL SECURITY INVOKER COMMENT "comment" AS ... END;

- Package routines are now created from the package CREATE PACKAGE BODY
  statement and don't produce individual records in mysql.proc.

- CREATE PACKAGE BODY now supports package-wide variables.
  Package variables can be read and set inside package routines.
  Package variables are stored in a separate sp_rcontext,
  which is cached in THD on the first packate routine call.

- CREATE PACKAGE BODY now supports the initialization section.

- All public routines (i.e. declared in CREATE PACKAGE)
  must have implementations in CREATE PACKAGE BODY

- Only public package routines are available outside of the package

- {CREATE|DROP} PACKAGE [BODY] now respects CREATE ROUTINE and ALTER ROUTINE
  privileges

- "GRANT EXECUTE ON PACKAGE BODY pkg" is now supported

- SHOW CREATE PACKAGE [BODY] is now supported

- SHOW PACKAGE [BODY] STATUS is now supported

- CREATE and DROP for PACKAGE [BODY] now works for non-current databases

- mysqldump now supports packages

- "SHOW {PROCEDURE|FUNCTION) CODE pkg.routine" now works for package routines

- "SHOW PACKAGE BODY CODE pkg" now works (the package initialization section)

- A new package body level MDL was added

- Recursive calls for package procedures are now possible

- Routine forward declarations in CREATE PACKATE BODY are now supported.

- Package body variables now work as SP OUT parameters

- Package body variables now work as SELECT INTO targets

- Package body variables now support ROW, %ROWTYPE, %TYPE

mysql-test/suite/compat/oracle/t/sp-package-concurrent-dml.inc

@@ -0,0 +1,107 @@
+--echo #
+--echo # Start of sp-package-concurrent-dml.inc
+--echo #
+
+--source include/count_sessions.inc
+
+let $object_type= `SELECT @object_type`;
+
+SET sql_mode=ORACLE;
+DELIMITER $$;
+CREATE PACKAGE pkg1 AS
+  PROCEDURE p1;
+END;
+$$
+CREATE PACKAGE BODY pkg1 AS
+  PROCEDURE p2 AS
+  BEGIN
+    SELECT 'This is p2' AS msg;
+  END;
+  PROCEDURE p1 AS
+  BEGIN
+    SELECT 'This is p1' AS msg;
+    DO GET_LOCK('mdev15070',120);
+    CALL p2();
+    DO RELEASE_LOCK('mdev15070');
+  END;
+END;
+$$
+DELIMITER ;$$
+
+connect (con2,localhost,root);
+connection con2;
+DO GET_LOCK('mdev15070', 120);
+
+connection default;
+send CALL pkg1.p1;
+
+connection con2;
+let $wait_condition=
+  SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST
+  WHERE state = "User lock" AND info LIKE "%GET_LOCK%mdev15070%";
+--source include/wait_condition.inc
+
+
+if ($object_type==view)
+{
+  CREATE VIEW v1 AS SELECT 1 AS c;
+  DROP VIEW v1;
+}
+
+
+if ($object_type==package_replace_pkg1)
+{
+  SET sql_mode=ORACLE;
+  DELIMITER $$;
+  CREATE OR REPLACE PACKAGE pkg1 AS
+    PROCEDURE p1;
+  END;
+  $$
+  DELIMITER ;$$
+  DROP PACKAGE pkg1;
+}
+
+
+if ($object_type==package_body_replace_pkg1)
+{
+  SET sql_mode=ORACLE;
+  DELIMITER $$;
+  CREATE OR REPLACE PACKAGE BODY pkg1 AS
+    PROCEDURE p1 AS
+    BEGIN
+      SELECT 'This is p1 version 2' AS msg;
+    END;
+  END;
+  $$
+  DELIMITER ;$$
+  DROP PACKAGE pkg1;
+}
+
+
+if ($object_type==trigger)
+{
+  CREATE TABLE t1 (a INT);
+  CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET NEW.a=1;
+  DROP TRIGGER tr1;
+  DROP TABLE t1;
+}
+
+
+if ($object_type=='db')
+{
+  CREATE DATABASE test1;
+  CREATE FUNCTION test1.f1() RETURNS INT RETURN 10;
+  DROP DATABASE test1;
+}
+
+
+DO RELEASE_LOCK('mdev15070');
+
+disconnect con2;
+
+connection default;
+reap;
+
+DROP PACKAGE IF EXISTS pkg1;
+
+--source include/wait_until_count_sessions.inc