PL/SQL parser (MDEV-10142)

[MDEV-12394] Add function is_native_function_with_warn() Created: 2017-03-29  Updated: 2018-08-31  Resolved: 2017-03-29

Status: Closed
Project: MariaDB Server
Component/s: Parser
Affects Version/s: 10.3
Fix Version/s: 10.3.0

Type: Technical task Priority: Major
Reporter: Alexander Barkov Assignee: Alexander Barkov
Resolution: Fixed Votes: 0
Labels: Compatibility, refactoring

Issue Links:
Blocks
blocks MDEV-10591 Oracle-style packages Closed
Sprint: 10.2.2-3, 10.2.2-1, 10.2.2-2, 10.2.2-4, 10.1.18

 Description   

There is a huge piece of code with huge comments in sql_yacc.yy:

if (is_native_function(thd, & sp->m_name))
 
{
 
  /*
 
   Huge comment
 
  */
 
  ...
 
}

responsible to display a warning when a user shadows a built-in function with a stored function.

The same warning will be needed for package routines (MDEV-10591).

We'll move this piece of code to sql_lex.cc into a new function is_native_function_with_warn().

This change was originally a part of MDEV-11952, but it was decided to commit it as a standalone change.
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