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/r/sp-package-concurrent-dml-trigger.result

@@ -0,0 +1,44 @@
+#
+# MDEV-15070 Crash when doing a CREATE VIEW inside a package routine
+#
+SET @object_type='trigger';
+#
+# Start of sp-package-concurrent-dml.inc
+#
+SET sql_mode=ORACLE;
+CREATE PACKAGE pkg1 AS
+PROCEDURE p1;
+END;
+$$
+CREATE PACKAGE BODY pkg1 AS
+PROCEDURE p2 AS
+BEGIN
+SELECT 'This is p2' AS msg;
+END;
+PROCEDURE p1 AS
+BEGIN
+SELECT 'This is p1' AS msg;
+DO GET_LOCK('mdev15070',120);
+CALL p2();
+DO RELEASE_LOCK('mdev15070');
+END;
+END;
+$$
+connect  con2,localhost,root;
+connection con2;
+DO GET_LOCK('mdev15070', 120);
+connection default;
+CALL pkg1.p1;
+connection con2;
+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;
+DO RELEASE_LOCK('mdev15070');
+disconnect con2;
+connection default;
+msg
+This is p1
+msg
+This is p2
+DROP PACKAGE IF EXISTS pkg1;