inform test result of zero hist_size for json histogram
Signed-off-by: Michael Okoko <okokomichaels@outlook.com>
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@ -19,7 +19,7 @@ test.t1 analyze status Engine-independent statistics collected
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test.t1 analyze status OK
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test.t1 analyze status OK
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SELECT * FROM mysql.column_stats WHERE table_name='t1';
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SELECT * FROM mysql.column_stats WHERE table_name='t1';
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db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size hist_type histogram
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db_name table_name column_name min_value max_value nulls_ratio avg_length avg_frequency hist_size hist_type histogram
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test t1 a 1 25 0.0000 4.0000 1.0000 10 JSON [
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test t1 a 1 25 0.0000 4.0000 0.0000 10 JSON [
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"3",
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"3",
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"5",
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"5",
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"7",
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"7",
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@ -31,7 +31,7 @@ test t1 a 1 25 0.0000 4.0000 1.0000 10 JSON [
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"21",
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"21",
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"23"
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"23"
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]
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]
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test t1 b 1 9 0.0000 1.6400 1.0000 10 JSON [
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test t1 b 1 9 0.0000 1.6400 0.0000 10 JSON [
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"11",
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"11",
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"13",
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"13",
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"15",
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"15",
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@ -43,7 +43,7 @@ test t1 b 1 9 0.0000 1.6400 1.0000 10 JSON [
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"5",
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"5",
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"7"
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"7"
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]
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]
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test t1 c 1 9 0.0000 2.0000 1.0000 10 JSON [
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test t1 c 1 9 0.0000 2.0000 0.0000 10 JSON [
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"11",
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"11",
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"13",
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"13",
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"15",
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"15",
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@ -55,7 +55,7 @@ test t1 c 1 9 0.0000 2.0000 1.0000 10 JSON [
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"5",
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"5",
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"7"
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"7"
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]
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]
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test t1 d 1 25 0.0000 8.0000 1.0000 10 JSON [
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test t1 d 1 25 0.0000 8.0000 0.0000 10 JSON [
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"3",
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"3",
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"5",
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"5",
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"7",
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"7",
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@ -1283,7 +1283,6 @@ void Histogram_json::init_for_collection(MEM_ROOT *mem_root, Histogram_type htyp
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bool Histogram_json::parse(MEM_ROOT *mem_root, Histogram_type type_arg, const uchar *ptr, uint size_arg)
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bool Histogram_json::parse(MEM_ROOT *mem_root, Histogram_type type_arg, const uchar *ptr, uint size_arg)
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{
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{
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size = (uint8) size_arg;
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type = type_arg;
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type = type_arg;
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// I think we could use memcpy here, but not sure about how to get the right size
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// I think we could use memcpy here, but not sure about how to get the right size
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// since we can't depend on size_arg (it's zero for json histograms)
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// since we can't depend on size_arg (it's zero for json histograms)
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@ -1303,7 +1302,7 @@ bool Histogram_json::parse(MEM_ROOT *mem_root, Histogram_type type_arg, const uc
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void Histogram_json::serialize(Field *field)
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void Histogram_json::serialize(Field *field)
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{
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{
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field->store((char*)get_values(), strlen((char*)get_values()),
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field->store((char*)values, strlen((char*)values),
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&my_charset_bin);
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&my_charset_bin);
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}
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}
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@ -372,9 +372,9 @@ public:
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is_available();
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is_available();
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}
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}
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void set_values (uchar *vals) override { values= (uchar *) vals; }
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void set_values (uchar *vals) override { values= vals; }
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uchar *get_values() override { return (uchar *) values; }
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uchar *get_values() override { return values; }
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double range_selectivity(double min_pos, double max_pos) override {return 0.1;}
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double range_selectivity(double min_pos, double max_pos) override {return 0.1;}
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