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#pragma once
#include <base/types.h>
#include <vector>
namespace DB
{
/* Parse a string that generates shards and replicas. Separator - one of two characters '|' or ','
* depending on whether shards or replicas are generated.
* For example:
* host1,host2,... - generates set of shards from host1, host2, ...
* host1|host2|... - generates set of replicas from host1, host2, ...
* abc{8..10}def - generates set of shards abc8def, abc9def, abc10def.
* abc{08..10}def - generates set of shards abc08def, abc09def, abc10def.
* abc{x,yy,z}def - generates set of shards abcxdef, abcyydef, abczdef.
* abc{x|yy|z} def - generates set of replicas abcxdef, abcyydef, abczdef.
* abc{1..9}de{f,g,h} - is a direct product, 27 shards.
* abc{1..9}de{0|1} - is a direct product, 9 shards, in each 2 replicas.
*/
std::vector<String> parseRemoteDescription(
const String & description, size_t l, size_t r, char separator, size_t max_addresses, const String & func_name = "remote");
/// Parse remote description for external database (MySQL or PostgreSQL).
std::vector<std::pair<String, uint16_t>> parseRemoteDescriptionForExternalDatabase(const String & description, size_t max_addresses, UInt16 default_port);
}
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