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implement parse and serialize for histogram json

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This commit is contained in:
Michael Okoko
2021-07-30 06:55:17 +01:00
committed by Sergei Petrunia
parent 9bba595528
commit bf4d0dcfe2
2 changed files with 32 additions and 10 deletions
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6
sql/sql_statistics.h
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@ -16,6 +16,7 @@
#ifndef SQL_STATISTICS_H
#define SQL_STATISTICS_H
#include <vector>
/*
For COMPLEMENTARY_FOR_QUERIES and PREFERABLY_FOR_QUERIES they are
similar to the COMPLEMENTARY and PREFERABLY respectively except that
@ -341,11 +342,12 @@ private:
Histogram_type type;
uint8 size; /* Number of elements in the histogram*/
uchar *values;
std::vector<std::string> hist_buckets;
public:
bool parse(MEM_ROOT *mem_root, Histogram_type type_arg, const uchar *ptr, uint size) override {return false;}
bool parse(MEM_ROOT *mem_root, Histogram_type type_arg, const uchar *ptr, uint size) override;
void serialize(Field *to_field) override{}
void serialize(Field *field) override;
// returns number of buckets in the histogram
uint get_width() override