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MDEV-7811: EXPLAIN/ANALYZE FORMAT=JSON should show subquery cache

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Fixes over the original patch:
- Fix variable/class/other names
- Fix the JSON output to be in line with the output of other JSON
  constructs we produce
This commit is contained in:
Sergei Petrunia 2015-07-01 20:03:29 +03:00
commit 9d2aa2b309
9 changed files with 191 additions and 179 deletions
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6
sql/sql_explain.h
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@ -85,7 +85,7 @@ class Explain_node : public Sql_alloc
{
public:
Explain_node(MEM_ROOT *root) :
cache_stat(NULL),
cache_tracker(NULL),
connection_type(EXPLAIN_NODE_OTHER),
children(root)
{}
@ -113,7 +113,7 @@ public:
/**
expression cache statistics
*/
Expression_cache_stat* cache_stat;
Expression_cache_tracker* cache_tracker;
/*
How this node is connected to its parent.
@ -140,7 +140,7 @@ public:
uint8 explain_flags, bool is_analyze);
void print_explain_json_for_children(Explain_query *query,
Json_writer *writer, bool is_analyze);
void print_explain_json_cache(Json_writer *writer, bool is_analyze);
bool print_explain_json_cache(Json_writer *writer, bool is_analyze);
virtual ~Explain_node(){}
};