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Rewrite DB class to allow backends to fully optimize block fetches

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This commit is contained in:
sfan5
2020-03-27 16:12:26 +01:00
parent ecc2b31f78
commit 5b264fd443
11 changed files with 325 additions and 154 deletions
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12
include/db-postgresql.h
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@@ -7,9 +7,11 @@
class DBPostgreSQL : public DB {
public:
DBPostgreSQL(const std::string &mapdir);
virtual std::vector<BlockPos> getBlockPos();
virtual void getBlocksOnZ(std::map<int16_t, BlockList> &blocks, int16_t zPos);
virtual ~DBPostgreSQL();
std::vector<BlockPos> getBlockPos(BlockPos min, BlockPos max) override;
void getBlocksOnXZ(BlockList &blocks, int16_t x, int16_t z,
int16_t min_y, int16_t max_y) override;
~DBPostgreSQL() override;
protected:
PGresult *checkResults(PGresult *res, bool clear = true);
void prepareStatement(const std::string &name, const std::string &sql);
@@ -17,11 +19,11 @@ protected:
const char *stmtName, const int paramsNumber,
const void **params,
const int *paramsLengths = NULL, const int *paramsFormats = NULL,
bool clear = true, bool nobinary = true
bool clear = true
);
int pg_to_int(PGresult *res, int row, int col);
int pg_binary_to_int(PGresult *res, int row, int col);
BlockPos pg_to_blockpos(PGresult *res, int row, int col);
private:
PGconn *db;
};