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Reduce memory consumption from attribute accumulation (#290)

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* Progress on plumbing a string pool for full_keys through

* More plumbing for key_pool

* Don't keep features with identical locations as multiplier features

* Revert "Don't keep features with identical locations as multiplier features"

This reverts commit 413f0c8024.

* Adjust calculated maxzoom to account for duplicate feature locations

* Update changelog and version

* Add a test affected by the maxzoom change with duplicate locations

* Round the drop rate a little for cross-platform test consistency
This commit is contained in:
Erica Fischer
2024-11-05 14:39:41 -08:00
committed by GitHub
parent b3b89e1e07
commit 23667bb8eb
21 changed files with 1230 additions and 285 deletions
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plugin.cpp
+2 -2
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@@ -145,7 +145,7 @@ std::vector<mvt_layer> parse_layers(int fd, int z, unsigned x, unsigned y, std::
}
// Reads from the prefilter
serial_feature parse_feature(json_pull *jp, int z, unsigned x, unsigned y, std::vector<std::map<std::string, layermap_entry>> *layermaps, size_t tiling_seg, std::vector<std::vector<std::string>> *layer_unmaps, bool postfilter) {
serial_feature parse_feature(json_pull *jp, int z, unsigned x, unsigned y, std::vector<std::map<std::string, layermap_entry>> *layermaps, size_t tiling_seg, std::vector<std::vector<std::string>> *layer_unmaps, bool postfilter, key_pool &key_pool) {
serial_feature sf;
while (1) {
@@ -354,7 +354,7 @@ serial_feature parse_feature(json_pull *jp, int z, unsigned x, unsigned y, std::
// would have already run before prefiltering
if (v.type != mvt_null) {
sf.full_keys.push_back(std::string(properties->value.object.keys[i]->value.string.string));
sf.full_keys.push_back(key_pool.pool(std::string(properties->value.object.keys[i]->value.string.string)));
sf.full_values.push_back(v);
if (!postfilter) {