pars0sym.cc File Reference

SQL parser symbol table. More...

#include "current_thd.h"
#include "pars0sym.h"
#include "data0data.h"
#include "data0type.h"
#include "dict0dd.h"
#include "eval0eval.h"
#include "mem0mem.h"
#include "pars0grm.h"
#include "pars0pars.h"
#include "que0que.h"
#include "row0sel.h"

Functions
sym_tab_t *	sym_tab_create (mem_heap_t *heap)
	Creates a symbol table for a single stored procedure or query. More...
void	sym_tab_free_private (sym_tab_t *sym_tab)
	Frees the memory allocated dynamically AFTER parsing phase for variables etc. More...
sym_node_t *	sym_tab_add_int_lit (sym_tab_t *sym_tab, ulint val)
	Adds an integer literal to a symbol table. More...
sym_node_t *	sym_tab_add_str_lit (sym_tab_t *sym_tab, const byte *str, ulint len)
	Adds a string literal to a symbol table. More...
sym_node_t *	sym_tab_add_bound_lit (sym_tab_t *sym_tab, const char *name, ulint *lit_type)
	Add a bound literal to a symbol table. More...
sym_node_t *	sym_tab_rebind_lit (sym_node_t *node, const void *address, ulint length)
sym_node_t *	sym_tab_add_null_lit (sym_tab_t *sym_tab)
	Adds an SQL null literal to a symbol table. More...
sym_node_t *	sym_tab_add_id (sym_tab_t *sym_tab, byte *name, ulint len)
	Adds an identifier to a symbol table. More...
sym_node_t *	sym_tab_add_bound_id (sym_tab_t *sym_tab, const char *name)
	Add a bound identifier to a symbol table. More...

Detailed Description

SQL parser symbol table.

Created 12/15/1997 Heikki Tuuri

Function Documentation

sym_tab_add_bound_id()

sym_node_t * sym_tab_add_bound_id	(	sym_tab_t *	sym_tab,
		const char *	name
	)

Add a bound identifier to a symbol table.

Returns

symbol table node

Parameters

sym_tab	in: symbol table
name	in: name of bound id

sym_tab_add_bound_lit()

sym_node_t * sym_tab_add_bound_lit	(	sym_tab_t *	sym_tab,
		const char *	name,
		ulint *	lit_type
	)

Add a bound literal to a symbol table.

Returns

symbol table node

Parameters

sym_tab	in: symbol table
name	in: name of bound literal
lit_type	out: type of literal (PARS_*_LIT)

sym_tab_add_id()

sym_node_t * sym_tab_add_id	(	sym_tab_t *	sym_tab,
		byte *	name,
		ulint	len
	)

Adds an identifier to a symbol table.

Returns

symbol table node

Parameters

sym_tab	in: symbol table
name	in: identifier name
len	in: identifier length

sym_tab_add_int_lit()

sym_node_t * sym_tab_add_int_lit	(	sym_tab_t *	sym_tab,
		ulint	val
	)

Adds an integer literal to a symbol table.

Returns

symbol table node

Parameters

sym_tab	in: symbol table
val	in: integer value

sym_tab_add_null_lit()

sym_node_t * sym_tab_add_null_lit

(

sym_tab_t *

sym_tab

)

Adds an SQL null literal to a symbol table.

Returns

symbol table node

Parameters

sym_tab

in: symbol table

sym_tab_add_str_lit()

sym_node_t * sym_tab_add_str_lit	(	sym_tab_t *	sym_tab,
		const byte *	str,
		ulint	len
	)

Adds a string literal to a symbol table.

Adds an string literal to a symbol table.

Returns

symbol table node

Parameters

sym_tab	in: symbol table
str	in: string with no quotes around it
len	in: string length

sym_tab_create()

sym_tab_t * sym_tab_create

(

mem_heap_t *

heap

)

Creates a symbol table for a single stored procedure or query.

Returns

own: symbol table

Parameters

heap	in: memory heap where to create

sym_tab_free_private()

void sym_tab_free_private

(

sym_tab_t *

sym_tab

)

Frees the memory allocated dynamically AFTER parsing phase for variables etc.

in the symbol table. Does not free the mem heap where the table was originally created. Frees also SQL explicit cursor definitions.

Parameters

sym_tab

in, own: symbol table

sym_tab_rebind_lit()

sym_node_t * sym_tab_rebind_lit	(	sym_node_t *	node,
		const void *	address,
		ulint	length
	)