SQL parser. More...

#include "pars0types.h"
#include "que0types.h"
#include "row0mysql.h"
#include "row0types.h"
#include "trx0types.h"
#include "univ.i"
#include "usr0types.h"
#include "ut0vec.h"
#include "pars0pars.ic"

Classes
struct	pars_info_t
	Extra information supplied for pars_sql(). More...

struct	pars_user_func_t
	User-supplied function and argument. More...

struct	pars_bound_lit_t
	Bound literal. More...

struct	pars_bound_id_t
	Bound identifier. More...

struct	pars_res_word_t
	Struct used to denote a reserved word in a parsing tree. More...

struct	func_node_t
	A predefined function or operator node in a parsing tree; this construct is also used for some non-functions like the assignment ':='. More...

struct	order_node_t
	An order-by node in a select. More...

struct	proc_node_t
	Procedure definition node. More...

struct	elsif_node_t
	elsif-element node More...

struct	if_node_t
	if-statement node More...

struct	while_node_t
	while-statement node More...

struct	for_node_t
	for-loop-statement node More...

struct	exit_node_t
	exit statement node More...

struct	return_node_t
	return-statement node More...

struct	assign_node_t
	Assignment statement node. More...

struct	col_assign_node_t
	Column assignment node. More...

Macros
#define	PARS_INPUT 0

#define	PARS_OUTPUT 1

#define	PARS_NOT_PARAM 2


#define	PARS_FUNC_ARITH 1
	Classes of functions. More...

#define	PARS_FUNC_LOGICAL 2
	AND, OR, NOT. More...

#define	PARS_FUNC_CMP 3
	comparison operators More...

#define	PARS_FUNC_PREDEFINED 4
	TO_NUMBER, SUBSTR, ... More...

#define	PARS_FUNC_AGGREGATE 5
	COUNT, DISTINCT, SUM. More...

#define	PARS_FUNC_OTHER 6
	these are not real functions, \ e.g., := More...

Typedefs
typedef bool(*	pars_user_func_cb_t) (void arg, void user_arg)
	Type of the user functions. More...

Functions
int	yyparse (void)

void	pars_init ()
	Initialize for the internal parser. More...

void	pars_close ()
	Clean up the internal parser. More...

que_t *	pars_sql (pars_info_t info, const char str)
	Parses an SQL string returning the query graph. More...

int	pars_get_lex_chars (char *buf, size_t max_size)
	Retrieves characters to the lexical analyzer. More...

void	yyerror (const char *s)
	Called by yyparse on error. More...

sym_node_t *	pars_variable_declaration (sym_node_t node, pars_res_word_t type)
	Parses a variable declaration. More...

func_node_t *	pars_func (que_node_t res_word, que_node_t arg)
	Parses a function expression. More...

int	pars_like_rebind (sym_node_t node, const byte ptr, ulint len)

func_node_t *	pars_op (int func, que_node_t arg1, que_node_t arg2)
	Parses an operator expression. More...

order_node_t *	pars_order_by (sym_node_t column, pars_res_word_t asc)
	Parses an ORDER BY clause. More...

sel_node_t *	pars_select_list (que_node_t select_list, sym_node_t into_list)
	Parses a select list; creates a query graph node for the whole SELECT statement. More...

que_node_t *	pars_cursor_declaration (sym_node_t sym_node, sel_node_t select_node)
	Parses a cursor declaration. More...

que_node_t *	pars_function_declaration (sym_node_t *sym_node)
	Parses a function declaration. More...

sel_node_t *	pars_select_statement (sel_node_t select_node, sym_node_t table_list, que_node_t search_cond, pars_res_word_t for_update, pars_res_word_t consistent_read, order_node_t order_by)
	Parses a select statement. More...

col_assign_node_t *	pars_column_assignment (sym_node_t column, que_node_t exp)
	Parses a column assignment in an update. More...

upd_node_t *	pars_update_statement_start (bool is_delete, sym_node_t table_sym, col_assign_node_t col_assign_list)
	Parses a delete or update statement start. More...

upd_node_t *	pars_update_statement (upd_node_t node, sym_node_t cursor_sym, que_node_t *search_cond)
	Parses an update or delete statement. More...

ins_node_t *	pars_insert_statement (sym_node_t table_sym, que_node_t values_list, sel_node_t *select)
	Parses an insert statement. More...

sym_node_t *	pars_parameter_declaration (sym_node_t node, ulint param_type, pars_res_word_t type)
	Parses a procedure parameter declaration. More...

elsif_node_t *	pars_elsif_element (que_node_t cond, que_node_t stat_list)
	Parses an elsif element. More...

if_node_t *	pars_if_statement (que_node_t cond, que_node_t stat_list, que_node_t *else_part)
	Parses an if-statement. More...

for_node_t *	pars_for_statement (sym_node_t loop_var, que_node_t loop_start_limit, que_node_t loop_end_limit, que_node_t stat_list)
	Parses a for-loop-statement. More...

while_node_t *	pars_while_statement (que_node_t cond, que_node_t stat_list)
	Parses a while-statement. More...

exit_node_t *	pars_exit_statement (void)
	Parses an exit statement. More...

return_node_t *	pars_return_statement (void)
	Parses a return-statement. More...

assign_node_t *	pars_assignment_statement (sym_node_t var, que_node_t val)
	Parses an assignment statement. More...

fetch_node_t *	pars_fetch_statement (sym_node_t cursor, sym_node_t into_list, sym_node_t *user_func)
	Parses a fetch statement. More...

open_node_t *	pars_open_statement (ulint type, sym_node_t *cursor)
	Parses an open or close cursor statement. More...

commit_node_t *	pars_commit_statement (void)
	Parses a commit statement. More...

roll_node_t *	pars_rollback_statement (void)
	Parses a rollback statement. More...

sym_node_t *	pars_column_def (sym_node_t sym_node, pars_res_word_t type, sym_node_t len, void is_unsigned, void *is_not_null)
	Parses a column definition at a table creation. More...

tab_node_t *	pars_create_table (sym_node_t table_sym, sym_node_t column_defs, sym_node_t compact, sym_node_t block_size, void *not_fit_in_memory)
	Parses a table creation operation. More...

ind_node_t *	pars_create_index (pars_res_word_t unique_def, pars_res_word_t clustered_def, sym_node_t index_sym, sym_node_t table_sym, sym_node_t *column_list)
	Parses an index creation operation. More...

que_fork_t *	pars_procedure_definition (sym_node_t sym_node, sym_node_t param_list, que_node_t *stat_list)
	Parses a procedure definition. More...

que_thr_t *	pars_complete_graph_for_exec (que_node_t node, trx_t trx, mem_heap_t heap, row_prebuilt_t prebuilt)
	Completes a query graph by adding query thread and fork nodes above it and prepares the graph for running. More...

pars_info_t *	pars_info_create (void)
	Create parser info struct. More...

void	pars_info_free (pars_info_t *info)
	Free info struct and everything it contains. More...

void	pars_info_add_literal (pars_info_t info, const char name, const void *address, ulint length, ulint type, ulint prtype)
	Add bound literal. More...

void	pars_info_add_str_literal (pars_info_t info, const char name, const char *str)
	Equivalent to pars_info_add_literal(info, name, str, strlen(str), DATA_VARCHAR, DATA_ENGLISH). More...

void	pars_info_bind_literal (pars_info_t info, const char name, const void *address, ulint length, ulint type, ulint prtype)

void	pars_info_bind_varchar_literal (pars_info_t info, const char name, const byte *str, ulint str_len)
	If the literal value already exists then it rebinds otherwise it creates a new entry. More...

void	pars_info_bind_int4_literal (pars_info_t info, const char name, const uint32_t *val)
	If the literal value already exists then it rebinds otherwise it creates a new entry. More...

void	pars_info_bind_int8_literal (pars_info_t info, const char name, const uint64_t *val)
	If the literal value already exists then it rebinds otherwise it creates a new entry. More...

void	pars_info_bind_function (pars_info_t info, const char name, pars_user_func_cb_t func, void *arg)
	Add user function. More...

void	pars_info_bind_id (pars_info_t info, bool copy_name, const char name, const char *id)
	Add bound id. More...

void	pars_info_add_int4_literal (pars_info_t info, const char name, lint val)
	Equivalent to: More...

void	pars_info_add_ull_literal (pars_info_t info, const char name, uint64_t val)
	Equivalent to: More...

void	pars_info_bind_ull_literal (pars_info_t info, const char name, const uint64_t *val)
	If the literal value already exists then it rebinds otherwise it creates a new entry. More...

void	pars_info_add_id (pars_info_t info, const char name, const char *id)
	Add bound id. More...

pars_bound_lit_t *	pars_info_get_bound_lit (pars_info_t info, const char name)
	Get bound literal with the given name. More...

pars_bound_id_t *	pars_info_get_bound_id (pars_info_t info, const char name)
	Get bound identifier with the given name. More...

void	pars_lexer_close (void)
	Release any resources used by the lexer. More...

Variables
int	yydebug
	If the following is set true, the parser will emit debugging information. More...

sym_tab_t *	pars_sym_tab_global

ib_mutex_t	pars_mutex
	Mutex to protect the sql parser. More...

pars_res_word_t	pars_to_binary_token

pars_res_word_t	pars_substr_token

pars_res_word_t	pars_concat_token

pars_res_word_t	pars_length_token

pars_res_word_t	pars_instr_token

pars_res_word_t	pars_count_token

pars_res_word_t	pars_sum_token

pars_res_word_t	pars_distinct_token

pars_res_word_t	pars_binary_token

pars_res_word_t	pars_blob_token

pars_res_word_t	pars_int_token

pars_res_word_t	pars_bigint_token

pars_res_word_t	pars_char_token

pars_res_word_t	pars_float_token

pars_res_word_t	pars_update_token

pars_res_word_t	pars_asc_token

pars_res_word_t	pars_desc_token

pars_res_word_t	pars_open_token

pars_res_word_t	pars_close_token

pars_res_word_t	pars_share_token

pars_res_word_t	pars_unique_token

pars_res_word_t	pars_clustered_token

ulint	pars_star_denoter
	Global variable used to denote the '' in SELECT FROM. More...

Detailed Description

SQL parser.

Created 11/19/1996 Heikki Tuuri

Macro Definition Documentation

◆ PARS_FUNC_AGGREGATE

#define PARS_FUNC_AGGREGATE 5

COUNT, DISTINCT, SUM.

◆ PARS_FUNC_ARITH

#define PARS_FUNC_ARITH 1

Classes of functions.

+, -, *, /

◆ PARS_FUNC_CMP

#define PARS_FUNC_CMP 3

comparison operators

◆ PARS_FUNC_LOGICAL

#define PARS_FUNC_LOGICAL 2

AND, OR, NOT.

◆ PARS_FUNC_OTHER

#define PARS_FUNC_OTHER 6

these are not real functions, \ e.g., :=

◆ PARS_FUNC_PREDEFINED

#define PARS_FUNC_PREDEFINED 4

TO_NUMBER, SUBSTR, ...

◆ PARS_INPUT

#define PARS_INPUT 0

◆ PARS_NOT_PARAM

#define PARS_NOT_PARAM 2

◆ PARS_OUTPUT

#define PARS_OUTPUT 1

Typedef Documentation

◆ pars_user_func_cb_t

typedef bool(* pars_user_func_cb_t) (void *arg, void *user_arg)

Type of the user functions.

The first argument is always InnoDB-supplied and varies in type, while 'user_arg' is a user-supplied argument. The meaning of the return type also varies. See the individual use cases, e.g. the FETCH statement, for details on them.

Function Documentation

◆ pars_assignment_statement()

assign_node_t * pars_assignment_statement	(	sym_node_t *	var,
		que_node_t *	val
	)

Parses an assignment statement.

Returns: assignment statement node in: value to assign; assignment statement node

Parameters

var	in: variable to assign
val	in: value to assign

◆ pars_close()

void pars_close ( )

Clean up the internal parser.

◆ pars_column_assignment()

col_assign_node_t * pars_column_assignment	(	sym_node_t *	column,
		que_node_t *	exp
	)

Parses a column assignment in an update.

Returns: column assignment node in: value to assign; column assignment node

Parameters

column	in: column to assign
exp	in: value to assign

◆ pars_column_def()

sym_node_t * pars_column_def	(	sym_node_t *	sym_node,
		pars_res_word_t *	type,
		sym_node_t *	len,
		void *	is_unsigned,
		void *	is_not_null
	)

Parses a column definition at a table creation.

Returns: column sym table node in: if not NULL, column is of type NOT NULL.; column sym table node

Parameters

sym_node	in: column node in the symbol table
type	in: data type
len	in: length of column, or NULL
is_unsigned	in: if not NULL, column is of type UNSIGNED.
is_not_null	in: if not NULL, column is of type NOT NULL.

◆ pars_commit_statement()

commit_node_t * pars_commit_statement ( void )

Parses a commit statement.

Returns: own: commit node struct

◆ pars_complete_graph_for_exec()

que_thr_t * pars_complete_graph_for_exec	(	que_node_t *	node,
		trx_t *	trx,
		mem_heap_t *	heap,
		row_prebuilt_t *	prebuilt
	)

Completes a query graph by adding query thread and fork nodes above it and prepares the graph for running.

The fork created is of type QUE_FORK_MYSQL_INTERFACE.

Parameters

[in]	node	root node for an incomplete query graph, or NULL for dummy graph
[in]	trx	transaction handle
[in]	heap	memory heap from which allocated
[in]	prebuilt	row prebuilt structure

Returns: query thread node to run

◆ pars_create_index()

ind_node_t * pars_create_index	(	pars_res_word_t *	unique_def,
		pars_res_word_t *	clustered_def,
		sym_node_t *	index_sym,
		sym_node_t *	table_sym,
		sym_node_t *	column_list
	)

Parses an index creation operation.

Parameters

[in]	unique_def	Not NULL if a unique index.
[in]	clustered_def	Not NULL if a clustered index.
[in]	index_sym	Index name node in the symbol table.
[in]	table_sym	Table name node in the symbol table.
[in]	column_list	List of column names.

Returns: index create subgraph

◆ pars_create_table()

tab_node_t * pars_create_table	(	sym_node_t *	table_sym,
		sym_node_t *	column_defs,
		sym_node_t *	compact,
		sym_node_t *	block_size,
		void *	not_fit_in_memory
	)

Parses a table creation operation.

Parameters

[in]	table_sym	table name node in the symbol table
[in]	column_defs	list of column names
[in]	not_fit_in_memory	a non-NULL pointer means that this is a table which in simulations should be simulated as not fitting in memory; thread is put to sleep to simulate disk accesses; NOTE that this flag is not stored to the data dictionary on disk, and the database will forget about non-NULL value if it has to reload the table definition from disk
[in]	compact	non-NULL if COMPACT table
[in]	block_size	block size (can be NULL)

Returns: table create subgraph

◆ pars_cursor_declaration()

que_node_t * pars_cursor_declaration	(	sym_node_t *	sym_node,
		sel_node_t *	select_node
	)

Parses a cursor declaration.

Returns: sym_node in: select node; sym_node

Parameters

sym_node	in: cursor id node in the symbol table
select_node	in: select node

◆ pars_elsif_element()

elsif_node_t * pars_elsif_element	(	que_node_t *	cond,
		que_node_t *	stat_list
	)

Parses an elsif element.

Returns: elsif node in: statement list; elsif node

Parameters

cond	in: if-condition
stat_list	in: statement list

◆ pars_exit_statement()

exit_node_t * pars_exit_statement ( void )

Parses an exit statement.

Returns: exit statement node

◆ pars_fetch_statement()

fetch_node_t * pars_fetch_statement	(	sym_node_t *	cursor,
		sym_node_t *	into_list,
		sym_node_t *	user_func
	)

Parses a fetch statement.

into_list or user_func (but not both) must be non-NULL.

Returns: fetch statement node in: user function name, or NULL

into_list or user_func (but not both) must be non-NULL.

Returns: fetch statement node

Parameters

cursor	in: cursor node
into_list	in: variables to set, or NULL
user_func	in: user function name, or NULL

◆ pars_for_statement()

for_node_t * pars_for_statement	(	sym_node_t *	loop_var,
		que_node_t *	loop_start_limit,
		que_node_t *	loop_end_limit,
		que_node_t *	stat_list
	)

Parses a for-loop-statement.

Returns: for-statement node in: statement list; for-statement node

Parameters

loop_var	in: loop variable
loop_start_limit	in: loop start expression
loop_end_limit	in: loop end expression
stat_list	in: statement list

◆ pars_func()

func_node_t * pars_func	(	que_node_t *	res_word,
		que_node_t *	arg
	)

Parses a function expression.

Returns: own: function node in a query tree in: first argument in the argument list; own: function node in a query tree

Parameters

res_word	in: function name reserved word
arg	in: first argument in the argument list

◆ pars_function_declaration()

que_node_t * pars_function_declaration ( sym_node_t * sym_node )

Parses a function declaration.

Returns: sym_node in: function id node in the symbol table; sym_node

Parameters

sym_node in: function id node in the symbol table

◆ pars_get_lex_chars()

int pars_get_lex_chars	(	char *	buf,
		size_t	max_size
	)

Retrieves characters to the lexical analyzer.

Parameters

[in,out]	buf	Buffer where to copy
[in]	max_size	Maximum number of characters which fit in the buffer

Returns: number of characters copied or 0 on EOF

◆ pars_if_statement()

if_node_t * pars_if_statement	(	que_node_t *	cond,
		que_node_t *	stat_list,
		que_node_t *	else_part
	)

Parses an if-statement.

Returns: if-statement node in: else-part statement list; if-statement node

Parameters

cond	in: if-condition
stat_list	in: statement list
else_part	in: else-part statement list or elsif element list

◆ pars_info_add_id()

void pars_info_add_id	(	pars_info_t *	info,
		const char *	name,
		const char *	id
	)

Add bound id.

Parameters

[in]	info	info struct
[in]	name	name
[in]	id	id

◆ pars_info_add_int4_literal()

void pars_info_add_int4_literal	(	pars_info_t *	info,
		const char *	name,
		lint	val
	)

Equivalent to:

char buf[4]; mach_write_to_4(buf, val); pars_info_add_literal(info, name, buf, 4, DATA_INT, 0);

except that the buffer is dynamically allocated from the info struct's heap. in: value

char buf[4]; mach_write_to_4(buf, val); pars_info_add_literal(info, name, buf, 4, DATA_INT, 0);

except that the buffer is dynamically allocated from the info struct's heap.

Parameters

info	in: info struct
name	in: name
val	in: value

◆ pars_info_add_literal()

void pars_info_add_literal	(	pars_info_t *	info,
		const char *	name,
		const void *	address,
		ulint	length,
		ulint	type,
		ulint	prtype
	)

Add bound literal.

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	address	Address
[in]	length	Length of data
[in]	type	Type, e.g. data_fixbinary
[in]	prtype	Precise type, e.g. data_unsigned

◆ pars_info_add_str_literal()

void pars_info_add_str_literal	(	pars_info_t *	info,
		const char *	name,
		const char *	str
	)

Equivalent to pars_info_add_literal(info, name, str, strlen(str), DATA_VARCHAR, DATA_ENGLISH).

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	str	String

Parameters

info	in: info struct
name	in: name
str	in: string

◆ pars_info_add_ull_literal()

void pars_info_add_ull_literal	(	pars_info_t *	info,
		const char *	name,
		uint64_t	val
	)

Equivalent to:

char buf[8]; mach_write_to_8(buf, val); pars_info_add_literal(info, name, buf, 8, DATA_FIXBINARY, 0);

except that the buffer is dynamically allocated from the info struct's heap. in: value

char buf[8]; mach_write_to_8(buf, val); pars_info_add_literal(info, name, buf, 8, DATA_FIXBINARY, 0);

except that the buffer is dynamically allocated from the info struct's heap.

Parameters

info	in: info struct
name	in: name
val	in: value

◆ pars_info_bind_function()

void pars_info_bind_function	(	pars_info_t *	info,
		const char *	name,
		pars_user_func_cb_t	func,
		void *	arg
	)

Add user function.

Parameters

[in]	info	Info struct
[in]	name	Function name
[in]	func	Function address
[in]	arg	User-supplied argument

◆ pars_info_bind_id()

void pars_info_bind_id	(	pars_info_t *	info,
		bool	copy_name,
		const char *	name,
		const char *	id
	)

Add bound id.

Parameters

[in]	info	info struct
[in]	copy_name	copy name if true
[in]	name	name
[in]	id	id

◆ pars_info_bind_int4_literal()

void pars_info_bind_int4_literal	(	pars_info_t *	info,
		const char *	name,
		const uint32_t *	val
	)

If the literal value already exists then it rebinds otherwise it creates a new entry.

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	val	Value

◆ pars_info_bind_int8_literal()

void pars_info_bind_int8_literal	(	pars_info_t *	info,
		const char *	name,
		const uint64_t *	val
	)

If the literal value already exists then it rebinds otherwise it creates a new entry.

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	val	Value

◆ pars_info_bind_literal()

void pars_info_bind_literal	(	pars_info_t *	info,
		const char *	name,
		const void *	address,
		ulint	length,
		ulint	type,
		ulint	prtype
	)

◆ pars_info_bind_ull_literal()

void pars_info_bind_ull_literal	(	pars_info_t *	info,
		const char *	name,
		const uint64_t *	val
	)

If the literal value already exists then it rebinds otherwise it creates a new entry.

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	val	Value

◆ pars_info_bind_varchar_literal()

void pars_info_bind_varchar_literal	(	pars_info_t *	info,
		const char *	name,
		const byte *	str,
		ulint	str_len
	)

If the literal value already exists then it rebinds otherwise it creates a new entry.

Parameters

[in]	info	Info struct
[in]	name	Name
[in]	str	String
[in]	str_len	String length

◆ pars_info_create()

pars_info_t * pars_info_create ( void )

Create parser info struct.

Returns: own: info struct

◆ pars_info_free()

void pars_info_free ( pars_info_t * info )

Free info struct and everything it contains.

in, own: info struct

Parameters

info	in, own: info struct

◆ pars_info_get_bound_id()

pars_bound_id_t * pars_info_get_bound_id	(	pars_info_t *	info,
		const char *	name
	)

Get bound identifier with the given name.

Parameters

[in]	info	info struct
[in]	name	bound id name to find

Returns: bound id, or NULL if not found

◆ pars_info_get_bound_lit()

pars_bound_lit_t * pars_info_get_bound_lit	(	pars_info_t *	info,
		const char *	name
	)

Get bound literal with the given name.

Returns: bound literal, or NULL if not found in: bound literal name to find; bound literal, or NULL if not found

Parameters

info	in: info struct
name	in: bound literal name to find

◆ pars_init()

void pars_init ( )

Initialize for the internal parser.

◆ pars_insert_statement()

ins_node_t * pars_insert_statement	(	sym_node_t *	table_sym,
		que_node_t *	values_list,
		sel_node_t *	select
	)

Parses an insert statement.

Returns: own: update node in a query tree in: select condition or NULL; own: update node in a query tree

Parameters

table_sym	in: table name node
values_list	in: value expression list or NULL
select	in: select condition or NULL

◆ pars_lexer_close()

void pars_lexer_close ( void )

Release any resources used by the lexer.

◆ pars_like_rebind()

int pars_like_rebind	(	sym_node_t *	node,
		const byte *	ptr,
		ulint	len
	)

◆ pars_op()

func_node_t * pars_op	(	int	func,
		que_node_t *	arg1,
		que_node_t *	arg2
	)

Parses an operator expression.

Returns: own: function node in a query tree in: second argument or NULL for an unary operator; own: function node in a query tree

Parameters

func	in: operator token code
arg1	in: first argument
arg2	in: second argument or NULL for an unary operator

◆ pars_open_statement()

open_node_t * pars_open_statement	(	ulint	type,
		sym_node_t *	cursor
	)

Parses an open or close cursor statement.

Returns: fetch statement node in: cursor node; fetch statement node

Parameters

type	in: ROW_SEL_OPEN_CURSOR or ROW_SEL_CLOSE_CURSOR
cursor	in: cursor node

◆ pars_order_by()

order_node_t * pars_order_by	(	sym_node_t *	column,
		pars_res_word_t *	asc
	)

Parses an ORDER BY clause.

Order by a single column only is supported.

Returns: own: order-by node in a query tree in: &pars_asc_token or pars_desc_token

Order by a single column only is supported.

Returns: own: order-by node in a query tree

Parameters

column	in: column name
asc	in: &pars_asc_token or pars_desc_token

◆ pars_parameter_declaration()

sym_node_t * pars_parameter_declaration	(	sym_node_t *	node,
		ulint	param_type,
		pars_res_word_t *	type
	)

Parses a procedure parameter declaration.

Returns: own: symbol table node of type SYM_VAR in: pointer to a type token; own: symbol table node of type SYM_VAR

Parameters

node	in: symbol table node allocated for the id of the parameter
param_type	in: PARS_INPUT or PARS_OUTPUT
type	in: pointer to a type token

◆ pars_procedure_definition()

que_fork_t * pars_procedure_definition	(	sym_node_t *	sym_node,
		sym_node_t *	param_list,
		que_node_t *	stat_list
	)

Parses a procedure definition.

Returns: query fork node in: statement list; query fork node

Parameters

sym_node	in: procedure id node in the symbol table
param_list	in: parameter declaration list
stat_list	in: statement list

◆ pars_return_statement()

return_node_t * pars_return_statement ( void )

Parses a return-statement.

Returns: return-statement node

◆ pars_rollback_statement()

roll_node_t * pars_rollback_statement ( void )

Parses a rollback statement.

Returns: own: rollback node struct

◆ pars_select_list()

sel_node_t * pars_select_list	(	que_node_t *	select_list,
		sym_node_t *	into_list
	)

Parses a select list; creates a query graph node for the whole SELECT statement.

Returns: own: select node in a query tree in: variables list or NULL; own: select node in a query tree

Parameters

select_list	in: select list
into_list	in: variables list or NULL

◆ pars_select_statement()

sel_node_t * pars_select_statement	(	sel_node_t *	select_node,
		sym_node_t *	table_list,
		que_node_t *	search_cond,
		pars_res_word_t *	for_update,
		pars_res_word_t *	lock_shared,
		order_node_t *	order_by
	)

Parses a select statement.

Returns: own: select node in a query tree in: NULL or an order-by node; own: select node in a query tree

Parameters

select_node	in: select node already containing the select list
table_list	in: table list
search_cond	in: search condition or NULL
for_update	in: NULL or &pars_update_token
lock_shared	in: NULL or &pars_share_token
order_by	in: NULL or an order-by node

◆ pars_sql()

que_t * pars_sql	(	pars_info_t *	info,
		const char *	str
	)

Parses an SQL string returning the query graph.

Returns: own: the query graph in: SQL string; own: the query graph

Parameters

info	in: extra information, or NULL
str	in: SQL string

◆ pars_update_statement()

upd_node_t * pars_update_statement	(	upd_node_t *	node,
		sym_node_t *	cursor_sym,
		que_node_t *	search_cond
	)

Parses an update or delete statement.

Returns: own: update node in a query tree in: search condition or NULL; own: update node in a query tree

Parameters

node	in: update node
cursor_sym	in: pointer to a cursor entry in the symbol table or NULL
search_cond	in: search condition or NULL

◆ pars_update_statement_start()

upd_node_t * pars_update_statement_start	(	bool	is_delete,
		sym_node_t *	table_sym,
		col_assign_node_t *	col_assign_list
	)

Parses a delete or update statement start.

Returns: own: update node in a query tree in: column assignment list, NULL if delete; own: update node in a query tree

Parameters

is_delete	in: true if delete
table_sym	in: table name node
col_assign_list	in: column assignment list, NULL if delete

◆ pars_variable_declaration()

sym_node_t * pars_variable_declaration	(	sym_node_t *	node,
		pars_res_word_t *	type
	)

Parses a variable declaration.

Returns: own: symbol table node of type SYM_VAR in: pointer to a type token; own: symbol table node of type SYM_VAR

Parameters

node	in: symbol table node allocated for the id of the variable
type	in: pointer to a type token

◆ pars_while_statement()

while_node_t * pars_while_statement	(	que_node_t *	cond,
		que_node_t *	stat_list
	)

Parses a while-statement.

Returns: while-statement node in: statement list; while-statement node

Parameters

cond	in: while-condition
stat_list	in: statement list

◆ yyerror()

void yyerror ( const char * s )

Called by yyparse on error.

in: error message string

Parameters

s	in: error message string

◆ yyparse()

int yyparse ( void )

Variable Documentation

◆ pars_asc_token

pars_res_word_t pars_asc_token

extern

◆ pars_bigint_token

pars_res_word_t pars_bigint_token

extern

◆ pars_binary_token

pars_res_word_t pars_binary_token

extern

◆ pars_blob_token

pars_res_word_t pars_blob_token

extern

◆ pars_char_token

pars_res_word_t pars_char_token

extern

◆ pars_close_token

pars_res_word_t pars_close_token

extern

◆ pars_clustered_token

pars_res_word_t pars_clustered_token

extern

◆ pars_concat_token

pars_res_word_t pars_concat_token

extern

◆ pars_count_token

pars_res_word_t pars_count_token

extern

◆ pars_desc_token

pars_res_word_t pars_desc_token

extern

◆ pars_distinct_token

pars_res_word_t pars_distinct_token

extern

◆ pars_float_token

pars_res_word_t pars_float_token

extern

◆ pars_instr_token

pars_res_word_t pars_instr_token

extern

◆ pars_int_token

pars_res_word_t pars_int_token

extern

◆ pars_length_token

pars_res_word_t pars_length_token

extern

◆ pars_mutex

ib_mutex_t pars_mutex

extern

Mutex to protect the sql parser.

◆ pars_open_token

pars_res_word_t pars_open_token

extern

◆ pars_share_token

pars_res_word_t pars_share_token

extern

◆ pars_star_denoter

ulint pars_star_denoter

extern

Global variable used to denote the '*' in SELECT * FROM.

◆ pars_substr_token

pars_res_word_t pars_substr_token

extern

◆ pars_sum_token

pars_res_word_t pars_sum_token

extern

◆ pars_sym_tab_global

sym_tab_t* pars_sym_tab_global

extern

◆ pars_to_binary_token

pars_res_word_t pars_to_binary_token

extern

◆ pars_unique_token

pars_res_word_t pars_unique_token

extern

◆ pars_update_token

pars_res_word_t pars_update_token

extern

◆ yydebug

int yydebug

extern

If the following is set true, the parser will emit debugging information.

Classes

Macros

Typedefs

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ PARS_FUNC_AGGREGATE

◆ PARS_FUNC_ARITH

◆ PARS_FUNC_CMP

◆ PARS_FUNC_LOGICAL

◆ PARS_FUNC_OTHER

◆ PARS_FUNC_PREDEFINED

◆ PARS_INPUT

◆ PARS_NOT_PARAM

◆ PARS_OUTPUT

Typedef Documentation

◆ pars_user_func_cb_t

Function Documentation

◆ pars_assignment_statement()

◆ pars_close()

◆ pars_column_assignment()

◆ pars_column_def()

◆ pars_commit_statement()

◆ pars_complete_graph_for_exec()

◆ pars_create_index()

◆ pars_create_table()

◆ pars_cursor_declaration()

◆ pars_elsif_element()

◆ pars_exit_statement()

◆ pars_fetch_statement()

◆ pars_for_statement()

◆ pars_func()

◆ pars_function_declaration()

◆ pars_get_lex_chars()

◆ pars_if_statement()

◆ pars_info_add_id()

◆ pars_info_add_int4_literal()

◆ pars_info_add_literal()

◆ pars_info_add_str_literal()

◆ pars_info_add_ull_literal()

◆ pars_info_bind_function()

◆ pars_info_bind_id()

◆ pars_info_bind_int4_literal()

◆ pars_info_bind_int8_literal()

◆ pars_info_bind_literal()

◆ pars_info_bind_ull_literal()

◆ pars_info_bind_varchar_literal()

◆ pars_info_create()

◆ pars_info_free()

◆ pars_info_get_bound_id()

◆ pars_info_get_bound_lit()

◆ pars_init()

◆ pars_insert_statement()

◆ pars_lexer_close()

◆ pars_like_rebind()

◆ pars_op()

◆ pars_open_statement()

◆ pars_order_by()

◆ pars_parameter_declaration()

◆ pars_procedure_definition()

◆ pars_return_statement()

◆ pars_rollback_statement()

◆ pars_select_list()

◆ pars_select_statement()

◆ pars_sql()

◆ pars_update_statement()

◆ pars_update_statement_start()

◆ pars_variable_declaration()

◆ pars_while_statement()

◆ yyerror()

◆ yyparse()

Variable Documentation

◆ pars_asc_token

◆ pars_bigint_token

◆ pars_binary_token

◆ pars_blob_token

◆ pars_char_token

◆ pars_close_token

◆ pars_clustered_token