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Support parallel INSERT for more table engines

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This commit is contained in:
Alexey Milovidov 2020-08-26 19:41:30 +03:00
parent 65ee7dcb18
commit 2a09aa53cc
4 changed files with 8 additions and 0 deletions
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2
src/Storages/StorageBuffer.h
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@ -65,6 +65,8 @@ public:
size_t max_block_size,
unsigned num_streams) override;
bool supportsParallelInsert() const override { return true; }
BlockOutputStreamPtr write(const ASTPtr & query, const StorageMetadataPtr & /*metadata_snapshot*/, const Context & context) override;
void startup() override;

2
src/Storages/StorageDistributed.h
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@ -79,6 +79,8 @@ public:
size_t max_block_size,
unsigned num_streams) override;
bool supportsParallelInsert() const override { return true; }
BlockOutputStreamPtr write(const ASTPtr & query, const StorageMetadataPtr & /*metadata_snapshot*/, const Context & context) override;
/// Removes temporary data in local filesystem.

2
src/Storages/StorageMemory.h
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@ -37,6 +37,8 @@ public:
size_t max_block_size,
unsigned num_streams) override;
bool supportsParallelInsert() const override { return true; }
BlockOutputStreamPtr write(const ASTPtr & query, const StorageMetadataPtr & metadata_snapshot, const Context & context) override;
void drop() override;

2
src/Storages/StorageNull.h
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@ -35,6 +35,8 @@ public:
std::make_shared<NullSource>(metadata_snapshot->getSampleBlockForColumns(column_names, getVirtuals(), getStorageID())));
}
bool supportsParallelInsert() const override { return true; }
BlockOutputStreamPtr write(const ASTPtr &, const StorageMetadataPtr & metadata_snapshot, const Context &) override
{
return std::make_shared<NullBlockOutputStream>(metadata_snapshot->getSampleBlock());