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41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
#pragma once
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#include <Storages/System/IStorageSystemOneBlock.h>
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namespace DB
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{
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class Context;
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/** Implements `zookeeper` system table, which allows you to view the data in ZooKeeper for debugging purposes.
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*/
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class StorageSystemZooKeeper final : public IStorage
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{
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public:
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explicit StorageSystemZooKeeper(const StorageID & table_id_);
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std::string getName() const override { return "SystemZooKeeper"; }
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static NamesAndTypesList getNamesAndTypes();
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SinkToStoragePtr write(const ASTPtr & /*query*/, const StorageMetadataPtr & /*metadata_snapshot*/, ContextPtr /*context*/, bool /*async_insert*/) override;
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void read(
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QueryPlan & query_plan,
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const Names & /*column_names*/,
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const StorageSnapshotPtr & storage_snapshot,
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SelectQueryInfo & query_info,
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ContextPtr context,
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QueryProcessingStage::Enum /*processed_stage*/,
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size_t /*max_block_size*/,
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size_t /*num_streams*/) override;
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bool isSystemStorage() const override { return true; }
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bool supportsIndexForIn() const override { return true; }
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bool mayBenefitFromIndexForIn(const ASTPtr & node, ContextPtr, const StorageMetadataPtr &) const override;
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};
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}
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