Node class for "simple" CTX_ORDER_BY and CTX_GROUP_BY. More...

Inheritance diagram for opt_explain_json_namespace::simple_sort_with_subqueries_ctx:

Public Member Functions
	simple_sort_with_subqueries_ctx (enum_parsing_context type_arg, const char name_arg, context parent_arg, subquery_list_enum subquery_type_arg, const Explain_format_flags *flags, Explain_sort_clause clause)

bool	add_subquery (subquery_list_enum subquery_type_arg, subquery_ctx *ctx) override
	Append a subquery node to the specified list of the unit node. More...

Public Member Functions inherited from opt_explain_json_namespace::simple_sort_ctx
	simple_sort_ctx (enum_parsing_context type_arg, const char name_arg, context parent_arg, const Explain_format_flags *flags, Explain_sort_clause clause)

bool	add_join_tab (joinable_ctx *ctx) override
	Add a CTX_QEP_TAB node to a CTX_JOIN node. More...

int	add_where_subquery (subquery_ctx ctx, Query_expression subquery) override
	Associate WHERE subqueries of given context and unit with this object. More...

bool	find_and_set_derived (context *subquery) override
	Try to associate a derived subquery node with this or underlying node. More...

size_t	id (bool hide) override
	Analogue of the "id" column in the traditional EXPLAIN output. More...

bool	cacheable () override

bool	dependent () override

Public Member Functions inherited from opt_explain_json_namespace::joinable_ctx
	joinable_ctx (enum_parsing_context type_arg, const char name_arg, context parent_arg)

Public Member Functions inherited from opt_explain_json_namespace::context
	context (enum_parsing_context type_arg, const char name_arg, context parent_arg)

virtual	~context ()=default

virtual bool	format (Opt_trace_context *json)
	Pass the node with its child nodes to a JSON formatter. More...

bool	is_query_block () const

virtual class qep_row *	entry ()

virtual enum_mod_type	get_mod_type ()

virtual void	set_child (context *)
	Associate a child node with this node. More...

virtual void	set_setop_result (setop_result_ctx *)
	associate CTX_UNION_RESULT node with CTX_UNION node More...

virtual bool	format_nested_loop (Opt_trace_context *json)
	Format nested loop join subtree (if any) to JSON formatter. More...

virtual void	set_sort (sort_ctx *ctx)
	Set nested ORDER BY/GROUP BY/DISTINCT node to `ctx`. More...

virtual void	set_window (window_ctx *ctx)
	Set nested WINDOW node to `ctx`. More...

virtual bool	add_query_spec (context *ctx)
	Add a query specification node to the CTX_UNION node. More...

virtual bool	format_derived (Opt_trace_context *)
	Helper function to format output for derived subquery if any. More...

virtual bool	format_where (Opt_trace_context *)
	Helper function to format output for associated WHERE subqueries if any. More...

virtual bool	format_query_expression (Opt_trace_context *)
	Helper function to format output for HAVING, ORDER/GROUP BY subqueries. More...

Public Member Functions inherited from Explain_context
	Explain_context (enum_parsing_context type_arg)

Private Member Functions
bool	format_body (Opt_trace_context json, Opt_trace_object obj) override
	Format JSON object body. More...

Private Attributes
const subquery_list_enum	subquery_type
	Type of this clause subqueries. More...

List< subquery_ctx >	subqueries

Additional Inherited Members
Public Attributes inherited from opt_explain_json_namespace::context
context *	parent
	link to parent node or NULL More...

Public Attributes inherited from Explain_context
enum_parsing_context	type
	type tag More...

Protected Attributes inherited from opt_explain_json_namespace::simple_sort_ctx
joinable_ctx *	join_tab
	Single JOIN_TAB that we sort. More...

Protected Attributes inherited from opt_explain_json_namespace::context
const char *	name

Detailed Description

Node class for "simple" CTX_ORDER_BY and CTX_GROUP_BY.

This class represents context for simple ORDER BY or GROUP BY clauses (the clause is effective for the single JOIN_TAB).

Constructor & Destructor Documentation

◆ simple_sort_with_subqueries_ctx()

opt_explain_json_namespace::simple_sort_with_subqueries_ctx::simple_sort_with_subqueries_ctx	(	enum_parsing_context	type_arg,
		const char *	name_arg,
		context *	parent_arg,
		subquery_list_enum	subquery_type_arg,
		const Explain_format_flags *	flags,
		Explain_sort_clause	clause
	)

inline

Member Function Documentation

◆ add_subquery()

bool opt_explain_json_namespace::simple_sort_with_subqueries_ctx::add_subquery	(	subquery_list_enum	subquery_type,
		subquery_ctx *	ctx
	)

inlineoverridevirtual

Append a subquery node to the specified list of the unit node.

Parameters

subquery_type	Describes the Item tree where the subquery exists
ctx	Subquery node

Return values

false	Ok
true	Error

Reimplemented from opt_explain_json_namespace::context.

◆ format_body()

bool opt_explain_json_namespace::simple_sort_with_subqueries_ctx::format_body	(	Opt_trace_context *	json,
		Opt_trace_object *	obj
	)

inlineoverrideprivatevirtual

Format JSON object body.

Parameters

json	Formatter
obj	Object of this body

Return values

false	Ok
true	Error

Reimplemented from opt_explain_json_namespace::simple_sort_ctx.

Member Data Documentation

◆ subqueries

List<subquery_ctx> opt_explain_json_namespace::simple_sort_with_subqueries_ctx::subqueries

private

◆ subquery_type

const subquery_list_enum opt_explain_json_namespace::simple_sort_with_subqueries_ctx::subquery_type

private

Type of this clause subqueries.

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

sql/opt_explain_json.cc

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members