MySQL 8.0.31
Source Code Documentation
eval0eval.h
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27/** @file include/eval0eval.h
28 SQL evaluator: evaluates simple data structures, like expressions, in
29 a query graph
30
31 Created 12/29/1997 Heikki Tuuri
32 *******************************************************/
33
34#ifndef eval0eval_h
35#define eval0eval_h
36
37#include "pars0pars.h"
38#include "pars0sym.h"
39#include "que0types.h"
40#include "univ.i"
41
42/** Free the buffer from global dynamic memory for a value of a que_node,
43 if it has been allocated in the above function. The freeing for pushed
44 column values is done in sel_col_prefetch_buf_free. */
45void eval_node_free_val_buf(que_node_t *node); /*!< in: query graph node */
46/** Evaluates a symbol table symbol. */
47static inline void eval_sym(sym_node_t *sym_node); /*!< in: symbol table node */
48/** Evaluates an expression. */
49static inline void eval_exp(que_node_t *exp_node); /*!< in: expression */
50
51/** Sets an integer value as the value of an expression node.
52@param[in] node expression node
53@param[in] val value to set */
54static inline void eval_node_set_int_val(que_node_t *node, lint val);
55
56/** Gets an integer value from an expression node.
57 @return integer value */
59 que_node_t *node); /*!< in: expression node */
60
61/** Copies a binary string value as the value of a query graph node. Allocates
62a new buffer if necessary.
63@param[in] node query graph node
64@param[in] str binary string
65@param[in] len string length or UNIV_SQL_NULL */
67 const byte *str, ulint len);
68
69/** Copies a query node value to another node.
70@param[in] node1 node to copy to
71@param[in] node2 node to copy from */
72static inline void eval_node_copy_val(que_node_t *node1, que_node_t *node2);
73
74/** Gets a boolean value from a query node.
75 @return boolean value */
76static inline bool eval_node_get_bool_val(
77 que_node_t *node); /*!< in: query graph node */
78/** Evaluates a comparison node.
79 @return the result of the comparison */
80bool eval_cmp(func_node_t *cmp_node); /*!< in: comparison node */
81
82#include "eval0eval.ic"
83
84#endif
bool eval_cmp(func_node_t *cmp_node)
Evaluates a comparison node.
Definition: eval0eval.cc:154
static 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.
static void eval_node_set_int_val(que_node_t *node, lint val)
Sets an integer value as the value of an expression node.
static void eval_exp(que_node_t *exp_node)
Evaluates an expression.
static void eval_node_copy_val(que_node_t *node1, que_node_t *node2)
Copies a query node value to another node.
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...
Definition: eval0eval.cc:98
static lint eval_node_get_int_val(que_node_t *node)
Gets an integer value from an expression node.
static bool eval_node_get_bool_val(que_node_t *node)
Gets a boolean value from a query node.
static void eval_sym(sym_node_t *sym_node)
Evaluates a symbol table symbol.
SQL evaluator: evaluates simple data structures, like expressions, in a query graph.
std::string str(const mysqlrouter::ConfigGenerator::Options::Endpoint &ep)
Definition: config_generator.cc:1063
SQL parser.
SQL parser symbol table.
Query graph global types.
void que_node_t
Definition: que0types.h:40
A predefined function or operator node in a parsing tree; this construct is also used for some non-fu...
Definition: pars0pars.h:496
Symbol table node.
Definition: pars0sym.h:112
Version control for database, common definitions, and include files.
unsigned long int ulint
Definition: univ.i:407
long int lint
Definition: univ.i:408