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#pragma once
#include "flat_dbase_scheme.h"
#include "flat_page_iface.h"
#include <util/generic/hash_set.h>
#include <ydb/core/protos/scheme_log.pb.h>
namespace NKikimr {
namespace NTable {
class TSchemeModifier {
public:
using TTable = TScheme::TTableInfo;
using TFamily = TScheme::TFamily;
using ECodec = NPage::ECodec;
using ECache = NPage::ECache;
explicit TSchemeModifier(TScheme &scheme);
bool Apply(const TSchemeChanges &delta)
{
bool changed = false;
for (const auto &delta : delta.GetDelta())
changed = Apply(delta) || changed;
return changed;
}
protected:
bool Apply(const TAlterRecord &delta);
bool AddTable(const TString& name, ui32 id);
bool DropTable(ui32 id);
bool AddColumn(ui32 table, const TString& name, ui32 id, ui32 type, bool notNull, TCell null = { });
bool DropColumn(ui32 table, ui32 id);
bool AddColumnToFamily(ui32 table, ui32 column, ui32 family);
bool AddColumnToKey(ui32 table, ui32 column);
bool SetExecutorCacheSize(ui64 cacheSize);
bool SetExecutorAllowLogBatching(bool allow);
bool SetExecutorLogFastCommitTactic(bool allow);
bool SetExecutorLogFlushPeriod(TDuration flushPeriod);
bool SetExecutorLimitInFlyTx(ui32 limitTxInFly);
bool SetExecutorResourceProfile(const TString &name);
bool SetCompactionPolicy(ui32 tableId, const NKikimrSchemeOp::TCompactionPolicy& newPolicy);
TTable* Table(ui32 tid) const noexcept
{
auto* table = Scheme.GetTableInfo(tid);
Y_VERIFY(table, "Acccessing table that isn't exists");
return table;
}
public:
TScheme &Scheme;
THashSet<ui32> Affects;
};
}
}
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