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Merge 10.1 (with ANALYZE) and 10.1-explain-json

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This commit is contained in:
Sergei Petrunia
2014-08-09 01:52:54 +04:00
parent d87ffeb491 5cfd3270ec
commit 83f0ddc629
15 changed files with 643 additions and 104 deletions
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35
sql/sql_explain.h
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@@ -67,6 +67,7 @@ const int FAKE_SELECT_LEX_ID= (int)UINT_MAX;
class Explain_query;
class Json_writer;
/*
A node can be either a SELECT, or a UNION.
*/
@@ -97,7 +98,9 @@ public:
virtual int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze)=0;
virtual void print_explain_json(Explain_query *query, Json_writer *writer,
bool is_analyze)= 0;
int print_explain_for_children(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
virtual ~Explain_node(){}
@@ -177,6 +180,8 @@ public:
int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
void print_explain_json(Explain_query *query, Json_writer *writer,
bool is_analyze);
Table_access_tracker *get_using_temporary_read_tracker()
{
@@ -222,6 +227,8 @@ public:
}
int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
void print_explain_json(Explain_query *query, Json_writer *writer,
bool is_analyze);
const char *fake_select_type;
bool using_filesort;
@@ -235,6 +242,8 @@ public:
return &tmptable_read_tracker;
}
private:
uint make_union_table_name(char *buf);
Table_access_tracker fake_select_lex_tracker;
/* This one is for reading after ORDER BY */
Table_access_tracker tmptable_read_tracker;
@@ -310,6 +319,8 @@ public:
/* Return tabular EXPLAIN output as a text string */
bool print_explain_str(THD *thd, String *out_str, bool is_analyze);
void print_explain_json(select_result_sink *output, bool is_analyze);
/* If true, at least part of EXPLAIN can be printed */
bool have_query_plan() { return insert_plan || upd_del_plan|| get_node(1) != NULL; }
@@ -479,7 +490,8 @@ public:
bool used_partitions_set;
/* Empty string means "NULL" will be printed */
StringBuffer<32> possible_keys_str;
List<char> possible_keys;
//StringBuffer<32> possible_keys_str;
/*
Index use: key name and length.
@@ -528,11 +540,19 @@ public:
EXPLAIN_BKA_TYPE bka_type;
StringBuffer<32> firstmatch_table_name;
/*
Note: lifespan of WHERE condition is less than lifespan of this object.
THe below is valid if tags include "ET_USING_WHERE".
*/
Item *where_cond;
Item *pushed_index_cond;
int print_explain(select_result_sink *output, uint8 explain_flags,
bool is_analyze,
uint select_id, const char *select_type,
bool using_temporary, bool using_filesort);
void print_explain_json(Json_writer *writer, bool is_analyze);
/* ANALYZE members*/
Table_access_tracker tracker;
@@ -540,6 +560,10 @@ public:
private:
void append_tag_name(String *str, enum explain_extra_tag tag);
void fill_key_str(String *key_str);
void fill_key_len_str(String *key_len_str);
double get_r_filtered();
void tag_to_json(Json_writer *writer, enum explain_extra_tag tag);
};
@@ -584,6 +608,8 @@ public:
virtual int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
virtual void print_explain_json(Explain_query *query, Json_writer *writer, bool is_analyze)
{ /* EXPLAIN_JSON_NOT_IMPL */}
};
@@ -604,6 +630,9 @@ public:
int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
void print_explain_json(Explain_query *query, Json_writer *writer,
bool is_analyze)
{ /* EXPLAIN_JSON_NOT_IMPL */}
};
@@ -625,6 +654,8 @@ public:
virtual int print_explain(Explain_query *query, select_result_sink *output,
uint8 explain_flags, bool is_analyze);
virtual void print_explain_json(Explain_query *query, Json_writer *writer, bool is_analyze)
{ /* EXPLAIN_JSON_NOT_IMPL */}
};