Node class for UNION, EXCEPT, INTERSECT, UNARY (query expression) More...

Inheritance diagram for opt_explain_json_namespace::setop_ctx:

Public Member Functions
	setop_ctx (context parent_arg, enum_parsing_context ctx, const char str)

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

bool	cacheable () override

bool	dependent () override

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

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

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

bool	has_no_subqueries () const
	Helper function to distinguish subquery-less nodes. More...

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

bool	add_subquery (subquery_list_enum subquery_type, 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::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 bool	format_nested_loop (Opt_trace_context *json)
	Format nested loop join subtree (if any) to JSON formatter. More...

virtual bool	add_join_tab (joinable_ctx *ctx)
	Add a CTX_QEP_TAB node to a CTX_JOIN node. 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	find_and_set_derived (context *subquery)
	Try to associate a derived subquery node with this or underlying node. More...

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

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 ) override
	Format JSON object body. More...

Private Attributes
setop_result_ctx *	setop_result
	associated e.g. CTX_UNION_RESULT node More...

List< context >	query_specs
	query specification nodes (inner selects) More...

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::context
const char *	name

Detailed Description

Node class for UNION, EXCEPT, INTERSECT, UNARY (query expression)

Constructor & Destructor Documentation

◆ setop_ctx()

opt_explain_json_namespace::setop_ctx::setop_ctx	(	context *	parent_arg,
		enum_parsing_context	ctx,
		const char *	str
	)

inlineexplicit

Member Function Documentation

◆ add_query_spec()

bool opt_explain_json_namespace::setop_ctx::add_query_spec ( context * ctx )

inlineoverridevirtual

Add a query specification node to the CTX_UNION node.

Parameters

ctx	query specification node

Return values

false	Ok
true	Error

Reimplemented from opt_explain_json_namespace::context.

◆ cacheable()

bool opt_explain_json_namespace::setop_ctx::cacheable ( )

inlineoverridevirtual

Reimplemented from opt_explain_json_namespace::context.

◆ dependent()

bool opt_explain_json_namespace::setop_ctx::dependent ( )

inlineoverridevirtual

Reimplemented from opt_explain_json_namespace::context.

◆ format_body()

bool opt_explain_json_namespace::setop_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

Implements opt_explain_json_namespace::context.

◆ id()

size_t opt_explain_json_namespace::setop_ctx::id ( bool hide )

inlineoverridevirtual

Analogue of the "id" column in the traditional EXPLAIN output.

Parameters

hide	if true, ban the output of K_SELECT_ID JSON property in the underlying table_with_where_and_derived_ctx objects

Returns: "Select number" that is associated with this node

Implements opt_explain_json_namespace::context.

◆ set_setop_result()

void opt_explain_json_namespace::setop_ctx::set_setop_result ( setop_result_ctx * )

inlineoverridevirtual

associate CTX_UNION_RESULT node with CTX_UNION node

Reimplemented from opt_explain_json_namespace::context.

Member Data Documentation

◆ query_specs

List<context> opt_explain_json_namespace::setop_ctx::query_specs

private

query specification nodes (inner selects)

◆ setop_result

setop_result_ctx* opt_explain_json_namespace::setop_ctx::setop_result

private

associated e.g. CTX_UNION_RESULT node

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

Detailed Description

Constructor & Destructor Documentation

◆ setop_ctx()

Member Function Documentation

◆ add_query_spec()

◆ cacheable()

◆ dependent()

◆ format_body()

◆ id()

◆ set_setop_result()

Member Data Documentation

◆ query_specs

◆ setop_result