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MDEV-11952 Oracle-style packages: stage#5

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- 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
This commit is contained in:
Alexander Barkov
2017-08-18 23:36:42 +04:00
parent 83ea839fb1
commit 583eb96c24
86 changed files with 11064 additions and 278 deletions
Download Patch File Download Diff File Expand all files Collapse all files

47
sql/sql_lex.h
View File

@ -2343,6 +2343,19 @@ public:
return m_cpp_ptr;
}
/**
Get the current stream pointer, in the pre-processed buffer,
with traling spaces removed.
*/
const char *get_cpp_ptr_rtrim()
{
const char *p;
for (p= m_cpp_ptr;
p > m_cpp_buf && my_isspace(system_charset_info, p[-1]);
p--)
{ }
return p;
}
/** Get the utf8-body string. */
const char *get_body_utf8_str()
{
@ -3212,15 +3225,10 @@ public:
sp_name *make_sp_name(THD *thd, const LEX_CSTRING *name);
sp_name *make_sp_name(THD *thd, const LEX_CSTRING *name1,
const LEX_CSTRING *name2);
sp_name *make_sp_name_package_routine(THD *thd, const LEX_CSTRING *name);
sp_head *make_sp_head(THD *thd, const sp_name *name, const Sp_handler *sph);
sp_head *make_sp_head_no_recursive(THD *thd, const sp_name *name,
const Sp_handler *sph)
{
if (!sphead)
return make_sp_head(thd, name, sph);
my_error(ER_SP_NO_RECURSIVE_CREATE, MYF(0), sph->type_str());
return NULL;
}
const Sp_handler *sph);
sp_head *make_sp_head_no_recursive(THD *thd,
DDL_options_st options, sp_name *name,
const Sp_handler *sph)
@ -3231,10 +3239,29 @@ public:
}
bool sp_body_finalize_function(THD *);
bool sp_body_finalize_procedure(THD *);
sp_package *create_package_start(THD *thd,
enum_sql_command command,
const Sp_handler *sph,
const sp_name *name,
DDL_options_st options);
bool create_package_finalize(THD *thd,
const sp_name *name,
const sp_name *name2,
const char *body_start,
const char *body_end);
bool call_statement_start(THD *thd, sp_name *name);
bool call_statement_start(THD *thd, const LEX_CSTRING *name);
bool call_statement_start(THD *thd, const LEX_CSTRING *name1,
const LEX_CSTRING *name2);
sp_variable *find_variable(const LEX_CSTRING *name,
sp_pcontext **ctx,
const Sp_rcontext_handler **rh) const;
sp_variable *find_variable(const LEX_CSTRING *name,
const Sp_rcontext_handler **rh) const
{
sp_pcontext *not_used_ctx;
return find_variable(name, &not_used_ctx, rh);
}
bool init_internal_variable(struct sys_var_with_base *variable,
const LEX_CSTRING *name);
bool init_internal_variable(struct sys_var_with_base *variable,
@ -3318,6 +3345,7 @@ public:
/*
Create an Item corresponding to a ROW field valiable: var.field
@param THD - THD, for mem_root
@param rh [OUT] - the rcontext handler (local vs package variables)
@param var - the ROW variable name
@param field - the ROW variable field name
@param spvar - the variable that was previously found by name
@ -3326,6 +3354,7 @@ public:
@param end - end in the query (for binary log)
*/
Item_splocal *create_item_spvar_row_field(THD *thd,
const Sp_rcontext_handler *rh,
const LEX_CSTRING *var,
const LEX_CSTRING *field,
sp_variable *spvar,
@ -3419,6 +3448,8 @@ public:
Item *make_item_func_replace(THD *thd, Item *org, Item *find, Item *replace);
Item *make_item_func_substr(THD *thd, Item *a, Item *b, Item *c);
Item *make_item_func_substr(THD *thd, Item *a, Item *b);
my_var *create_outvar(THD *thd, const LEX_CSTRING *name);
/*
Create a my_var instance for a ROW field variable that was used
as an OUT SP parameter: CALL p1(var.field);
@ -3479,6 +3510,7 @@ public:
bool sp_block_with_exceptions_finalize_exceptions(THD *thd,
uint executable_section_ip,
uint exception_count);
bool sp_block_with_exceptions_add_empty(THD *thd);
bool sp_exit_statement(THD *thd, Item *when);
bool sp_exit_statement(THD *thd, const LEX_CSTRING *label_name, Item *item);
bool sp_leave_statement(THD *thd, const LEX_CSTRING *label_name);
@ -3728,6 +3760,7 @@ public:
{
return create_info.vers_info;
}
sp_package *get_sp_package() const;
};