Talili tickets

[talili-rsec]

• The Jira issue number for this PR is: MDEV-34327
• The Jira issue number for this PR is: MDEV-34330
• The Jira issue number for this PR is: MDEV-34331
• The Jira issue number for this PR is: MDEV-19635

Description

MDEV-34327

This patch is the implementation of Oracle’s DBMS_RANDOM package for sql_mode=ORACLE. The random number generator can be seeded with a constant value by calling the INITIALIZE procedure with the seed number.

The following functions were added for the ticket:

INITIALIZE - Initialize the seed
VALUE - Get a random number greater than or equal to 0 and less than 1, with 38 digits to the right of the decimal point (38-digit precision)
RANDOM - Generate a random number
TERMINATE – Terminate the package

MDEV-34330

This patch is the implementation of Oracle’s DBMS_UTILITY package for sql_mode=ORACLE.

The following functions were added for the ticket:

GET_TIME - Return a measure of current time in hundredths of a second
FORMAT_ERROR_BACKTRACE - Display the call stack at the point where an exception was raised, even if the procedure is called from an exception handler in an outer scope
FORMAT_ERROR_STACK - Format the current error stack

For the FORMAT_XXXX functions, resulting line numbers of SQL statement lines of interest, in package routines are based on the line numbers of the "SHOW CREATE" command for the package body.

TODOs:
The error stack formatting differs from Oracle's implementation. In Oracle, FORMAT_ERROR_STACK and FORMAT_ERROR_BACKTRACE can display output from any point in the call stack (bottom, middle, or top). This implementation always formats output as if the request originates from the bottom-most function in the stack, regardless of where the function is actually called from.

MDEV-34331

This patch is the implementation of Oracle’s UTL_I18N package for sql_mode=ORACLE. The package is a set of services that provides additional globalization functionality.

The ANY_CS character set was also implemented so that the character set set by "set names" command or the character set of the database as the character set of the variable set with ANY_CS, especially for the transliterate function.

The following functions were added for the ticket:

TRANSLITERATE - Perform script transliteration
RAW_TO_CHAR - Convert RAW data from a valid character set to a VARCHAR2 string in the database character set
STRING_TO_RAW - Convert a VARCHAR2 string to another valid character set and returns the result as RAW data

MDEV-19635

This patch adds support for dynamic SQL to parse any data manipulation language (DML) or data definition language (DDL) statement using PL/SQL.

The following functions were added for the ticket:

OPEN_CURSOR - Open a new cursor
PARSE - Parse the given statement in the given cursor
EXECUTE - Execute a given cursor
CLOSE_CURSOR - Close the cursor when no longer needed for a session

TODOs:
As of the moment, '1', corresponding to Oracle's NATIVE DBMS_SQL constant, as PARSE's procedure's (language_flag) 3rd argument, is the only one accepted.

Release Notes

• MDEV-34327: N/A
• MDEV-34330: N/A
• MDEV-34331: N/A
• MDEV-19635: N/A, but new kb page should be created for this dynamic SQL.

How can this PR be tested?

• MDEV-34327:
  • mysql-test/mtr pkg_dbms_random
• MDEV-34330:
  • mysql-test/mtr pkg_dbms_utility
• MDEV-34331:
  • mysql-test/mtr pkg_utl_i18n
  • mysql-test/mtr pkg_utl_i18n-sjis
  • mysql-test/mtr pkg_utl_i18n-ujis
  • mysql-test/mtr pkg_utl_i18n-non_xliterate
• MDEV-19635:
  • mysql-test/mtr pkg_dbms_sql

If the changes are not amenable to automated testing, please explain why not and carefully describe how to test manually.

Basing the PR against the correct MariaDB version

• This is a new feature or a refactoring, and the PR is based against the main branch.
• This is a bug fix, and the PR is based against the earliest maintained branch in which the bug can be reproduced.

PR quality check

• I checked the CODING_STANDARDS.md file and my PR conforms to this where appropriate.
• For any trivial modifications to the PR, I am ok with the reviewer making the changes themselves.

[CLAassistant]

All committers have signed the CLA.