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alesapin 2021-03-02 13:57:09 +03:00
parent 06678d650d
commit 4e33587043
1 changed files with 4 additions and 0 deletions
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4
src/Storages/MergeTree/MergeTreeData.h
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@ -692,11 +692,15 @@ public:
bool is_custom_partitioned = false;
/// Used only for old syntax tables. Never changes after init.
Int64 minmax_idx_date_column_pos = -1; /// In a common case minmax index includes a date column.
Int64 minmax_idx_time_column_pos = -1; /// In other cases, minmax index often includes a dateTime column.
/// Get partition key expression on required columns
ExpressionActionsPtr getMinMaxExpr(const KeyDescription & partition_key) const;
/// Get column names required for partition key
Names getMinMaxColumnsNames(const KeyDescription & partition_key) const;
/// Get column types required for partition key
DataTypes getMinMaxColumnsTypes(const KeyDescription & partition_key) const;
ExpressionActionsPtr getPrimaryKeyAndSkipIndicesExpression(const StorageMetadataPtr & metadata_snapshot) const;