PT_with_clause Class Reference

Represents the WITH clause: WITH [...], [...] SELECT ..., ^^^^^^^^^^^^^^^^^. More...

#include <parse_tree_nodes.h>

Inheritance diagram for PT_with_clause:

Public Member Functions
	PT_with_clause (const POS &pos, const PT_with_list *l, bool r)
bool	do_contextualize (Parse_context *pc) override
bool	lookup (Table_ref *tl, PT_common_table_expr **found)
	Looks up a table reference into the list of CTEs. More...
const Table_ref *	enter_parsing_definition (Table_ref *tl)
	Call this to record in the WITH clause that we are contextualizing the CTE definition inserted in table reference 'tl'. More...
void	leave_parsing_definition (const Table_ref *old)
void	print (const THD *thd, String *str, enum_query_type query_type)
Public Member Functions inherited from Parse_tree_node_tmpl< Context >
virtual	~Parse_tree_node_tmpl ()=default
bool	is_contextualized () const
virtual bool	contextualize (Context *pc) final
void	error (Context *pc, const POS &pos) const
	syntax_error() function replacement for deferred reporting of syntax errors More...
void	error (Context *pc, const POS &pos, const char *msg) const
	syntax_error() function replacement for deferred reporting of syntax errors More...
void	errorf (Context *pc, const POS &pos, const char *format,...) const
	syntax_error() function replacement for deferred reporting of syntax errors More...

Protected Member Functions
void	add_json_info (Json_object *obj) override
	Add all the node-specific json fields. More...
Protected Member Functions inherited from Parse_tree_node_tmpl< Context >
	Parse_tree_node_tmpl ()=delete
	Parse_tree_node_tmpl (const POS &pos)
	Parse_tree_node_tmpl (const POS &start_pos, const POS &end_pos)
bool	begin_parse_tree (Show_parse_tree *tree)
bool	end_parse_tree (Show_parse_tree *tree)
virtual bool	do_contextualize (Context *pc)
	Do all context-sensitive things and mark the node as contextualized. More...

Private Types
typedef Parse_tree_node	super

Private Attributes
const PT_with_list *const	m_list
	All CTEs of this clause. More...
const bool	m_recursive
	True if the user has specified the RECURSIVE keyword. More...
const Table_ref *	m_most_inner_in_parsing
	The innermost CTE reference which we're parsing at the moment. More...

Friends
bool	Query_expression::clear_correlated_query_blocks ()

Additional Inherited Members
Public Types inherited from Parse_tree_node_tmpl< Context >
typedef Context	context_t
Static Public Member Functions inherited from Parse_tree_node_tmpl< Context >
static void *	operator new (size_t size, MEM_ROOT *mem_root, const std::nothrow_t &arg=std::nothrow) noexcept
static void	operator delete (void *ptr, size_t size)
static void	operator delete (void *, MEM_ROOT *, const std::nothrow_t &) noexcept
Public Attributes inherited from Parse_tree_node_tmpl< Context >
POS	m_pos

Detailed Description

Represents the WITH clause: WITH [...], [...] SELECT ..., ^^^^^^^^^^^^^^^^^.

Member Typedef Documentation

super

typedef Parse_tree_node PT_with_clause::super

private

Constructor & Destructor Documentation

PT_with_clause()

PT_with_clause::PT_with_clause ( const POS &  pos, const PT_with_list *  l, bool  r  )

inline

Member Function Documentation

add_json_info()

void PT_with_clause::add_json_info ( Json_object *  json_obj )

inlineoverrideprotectedvirtual

Add all the node-specific json fields.

Any class that needs to add such info should override this function rather than doing it in do_contextualize(). E.g. the parse tree node for AVG() may have "distinct" field to indicate if AVG(DISTINCT ...) is used or not.

Parameters

json_obj

Json object for this parse tree node.

Reimplemented from Parse_tree_node_tmpl< Context >.

do_contextualize()

bool PT_with_clause::do_contextualize ( Parse_context *  pc )

override

enter_parsing_definition()

const Table_ref * PT_with_clause::enter_parsing_definition ( Table_ref *  tl )

inline

Call this to record in the WITH clause that we are contextualizing the CTE definition inserted in table reference 'tl'.

Returns

information which the caller must provide to leave_parsing_definition().

leave_parsing_definition()

void PT_with_clause::leave_parsing_definition ( const Table_ref *  old )

inline

print()

void PT_with_clause::print	(	const THD *	thd,
		String *	str,
		enum_query_type	query_type
	)

Friends And Related Function Documentation

Query_expression::clear_correlated_query_blocks

bool Query_expression::clear_correlated_query_blocks ( )

friend

Member Data Documentation

m_list

const PT_with_list* const PT_with_clause::m_list

private

All CTEs of this clause.

m_most_inner_in_parsing

const Table_ref* PT_with_clause::m_most_inner_in_parsing

private

The innermost CTE reference which we're parsing at the moment.

Used to detect forward references, loops and recursiveness.

m_recursive

const bool PT_with_clause::m_recursive

private

True if the user has specified the RECURSIVE keyword.

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The documentation for this class was generated from the following files:

• sql/parse_tree_nodes.h
• sql/parse_tree_nodes.cc
• sql/sql_parse.cc