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60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
#pragma once
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#include <Interpreters/QueryViewsLog.h>
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#include <Parsers/IAST_fwd.h>
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#include <QueryPipeline/Chain.h>
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#include <Processors/ISimpleTransform.h>
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#include <Storages/IStorage.h>
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#include <Processors/Sinks/SinkToStorage.h>
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#include <Common/Stopwatch.h>
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namespace Poco
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{
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class Logger;
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}
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namespace DB
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{
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struct ViewRuntimeData
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{
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/// A query we should run over inserted block before pushing into inner storage.
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const ASTPtr query;
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/// This structure is expected by inner storage. Will convert query result to it.
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Block sample_block;
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/// Inner storage id.
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StorageID table_id;
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/// In case of exception at any step (e.g. query execution or insertion into inner table)
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/// exception is stored here (will be stored in query views log).
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std::exception_ptr exception;
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/// Info which is needed for query views log.
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std::unique_ptr<QueryViewsLogElement::ViewRuntimeStats> runtime_stats;
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void setException(std::exception_ptr e)
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{
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exception = e;
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runtime_stats->setStatus(QueryViewsLogElement::ViewStatus::EXCEPTION_WHILE_PROCESSING);
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}
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};
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/** Writes data to the specified table and to all dependent materialized views.
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*/
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Chain buildPushingToViewsChain(
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const StoragePtr & storage,
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const StorageMetadataPtr & metadata_snapshot,
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ContextPtr context,
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const ASTPtr & query_ptr,
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/// It is true when we should not insert into table, but only to views.
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/// Used e.g. for kafka. We should try to remove it somehow.
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bool no_destination,
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/// We could specify separate thread_status for each view.
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/// Needed mainly to collect counters separately. Should be improved.
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ThreadStatus * thread_status,
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/// Counter to measure time spent separately per view. Should be improved.
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std::atomic_uint64_t * elapsed_counter_ms,
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/// LiveView executes query itself, it needs source block structure.
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const Block & live_view_header = {});
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}
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