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51 lines
1.3 KiB
C++
51 lines
1.3 KiB
C++
#pragma once
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#include <Common/HashTable/HashMap.h>
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#include <Common/Arena.h>
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#include <absl/container/flat_hash_map.h>
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#include <Processors/Sinks/SinkToStorage.h>
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#include <Interpreters/ExpressionAnalyzer.h>
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#include <Interpreters/Context_fwd.h>
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namespace DB
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{
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class PartitionedSink : public SinkToStorage
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{
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public:
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static constexpr auto PARTITION_ID_WILDCARD = "{_partition_id}";
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PartitionedSink(const ASTPtr & partition_by, ContextPtr context_, const Block & sample_block_);
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String getName() const override { return "PartitionedSink"; }
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void consume(Chunk chunk) override;
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void onException(std::exception_ptr exception) override;
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void onFinish() override;
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virtual SinkPtr createSinkForPartition(const String & partition_id) = 0;
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static void validatePartitionKey(const String & str, bool allow_slash);
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static String replaceWildcards(const String & haystack, const String & partition_id);
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private:
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ContextPtr context;
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Block sample_block;
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ExpressionActionsPtr partition_by_expr;
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String partition_by_column_name;
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absl::flat_hash_map<StringRef, SinkPtr> partition_id_to_sink;
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HashMapWithSavedHash<StringRef, size_t> partition_id_to_chunk_index;
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IColumn::Selector chunk_row_index_to_partition_index;
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Arena partition_keys_arena;
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SinkPtr getSinkForPartitionKey(StringRef partition_key);
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};
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}
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