#include "univ.i"
#include "que0types.h"
#include "pars0sym.h"
#include "pars0pars.h"
#include "eval0eval.ic"

Include dependency graph for eval0eval.h:

This graph shows which files directly or indirectly include this file:

Functions
UNIV_INTERN void	eval_node_free_val_buf (que_node_t *node)
UNIV_INLINE void	eval_sym (sym_node_t *sym_node)
UNIV_INLINE void	eval_exp (que_node_t *exp_node)
UNIV_INLINE void	eval_node_set_int_val (que_node_t *node, lint val)
UNIV_INLINE lint	eval_node_get_int_val (que_node_t *node)
UNIV_INLINE void	eval_node_copy_and_alloc_val (que_node_t node, const byte str, ulint len)
UNIV_INLINE void	eval_node_copy_val (que_node_t node1, que_node_t node2)
UNIV_INLINE ibool	eval_node_get_ibool_val (que_node_t *node)
UNIV_INTERN ibool	eval_cmp (func_node_t *cmp_node)

Detailed Description

SQL evaluator: evaluates simple data structures, like expressions, in a query graph

Created 12/29/1997 Heikki Tuuri

Function Documentation

UNIV_INTERN ibool eval_cmp ( func_node_t * cmp_node )

Evaluates a comparison node.

Returns: the result of the comparison in: comparison node

UNIV_INLINE void eval_exp ( que_node_t * exp_node )

Evaluates an expression. in: expression

Evaluates an expression.

Parameters

exp_node in: expression

UNIV_INLINE void eval_node_copy_and_alloc_val	(	que_node_t *	node,
		const byte *	str,
		ulint	len
	)

Copies a binary string value as the value of a query graph node. Allocates a new buffer if necessary. in: string length or UNIV_SQL_NULL

Copies a binary string value as the value of a query graph node. Allocates a new buffer if necessary.

Parameters

node	in: query graph node
str	in: binary string
len	in: string length or UNIV_SQL_NULL

UNIV_INLINE void eval_node_copy_val	(	que_node_t *	node1,
		que_node_t *	node2
	)

Copies a query node value to another node. in: node to copy from

Copies a query node value to another node.

Parameters

node1	in: node to copy to
node2	in: node to copy from

UNIV_INTERN void eval_node_free_val_buf ( que_node_t * node )

Free the buffer from global dynamic memory for a value of a que_node, if it has been allocated in the above function. The freeing for pushed column values is done in sel_col_prefetch_buf_free. in: query graph node

UNIV_INLINE ibool eval_node_get_ibool_val ( que_node_t * node )

Gets a iboolean value from a query node.

Returns: iboolean value in: query graph node

Gets a iboolean value from a query node.

Returns: iboolean value

Parameters

node	in: query graph node

UNIV_INLINE lint eval_node_get_int_val ( que_node_t * node )

Gets an integer value from an expression node.

Returns: integer value in: expression node

Gets an integer non-SQL null value from an expression node.

Returns: integer value

Parameters

node	in: expression node

UNIV_INLINE void eval_node_set_int_val	(	que_node_t *	node,
		lint	val
	)

Sets an integer value as the value of an expression node. in: value to set

Sets an integer value as the value of an expression node.

Parameters

node	in: expression node
val	in: value to set

UNIV_INLINE void eval_sym ( sym_node_t * sym_node )

Evaluates a symbol table symbol. in: symbol table node

Evaluates a symbol table symbol.

Parameters

sym_node in: symbol table node

Functions

Detailed Description

Function Documentation