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Reduce attribute accumulation memory consumption (#318)

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* Add a flag to use an H3 index for the feature index

* Give mvt_value and serial_val a double-with-count concept

* Switch mean over to internal accumulation state

* Get rid of the attribute accumulation map

* Change vectors of features to vectors of pointers to features

* Fix --coalesce

* Revert "Add a flag to use an H3 index for the feature index"

This reverts commit b9b48f42c9.

* Update version and changelog
This commit is contained in:
Erica Fischer
2025-01-30 21:58:35 -08:00
committed by GitHub
parent 390c362452
commit 583fc3744a
11 changed files with 243 additions and 232 deletions
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attribute.hpp
+2 -7
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@@ -19,19 +19,14 @@ enum attribute_op {
op_count,
};
struct accum_state {
double sum = 0;
double count = 0;
};
struct serial_val;
struct key_pool;
void set_attribute_accum(std::unordered_map<std::string, attribute_op> &attribute_accum, std::string name, std::string type);
void set_attribute_accum(std::unordered_map<std::string, attribute_op> &attribute_accum, const char *arg, char **argv);
void preserve_attribute(attribute_op const &op, std::string const &key, serial_val const &val, std::vector<std::shared_ptr<std::string>> &full_keys, std::vector<serial_val> &full_values, std::unordered_map<std::string, accum_state> &attribute_accum_state, key_pool &key_pool);
void preserve_attribute(attribute_op const &op, std::string const &key, mvt_value const &val, std::vector<std::shared_ptr<std::string>> &full_keys, std::vector<mvt_value> &full_values, std::unordered_map<std::string, accum_state> &attribute_accum_state, key_pool &key_pool);
void preserve_attribute(attribute_op const &op, std::string const &key, serial_val const &val, std::vector<std::shared_ptr<std::string>> &full_keys, std::vector<serial_val> &full_values, key_pool &key_pool);
void preserve_attribute(attribute_op const &op, std::string const &key, mvt_value const &val, std::vector<std::shared_ptr<std::string>> &full_keys, std::vector<mvt_value> &full_values, key_pool &key_pool);
extern std::map<std::string, attribute_op> numeric_operations;