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Reformat all code to coding standard

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Andrew Hutchings
2017-10-26 17:18:17 +01:00
parent 4985f3456e
commit 01446d1e22
1296 changed files with 403852 additions and 353747 deletions
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168
dbcon/joblist/rowestimator.h
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@ -46,103 +46,103 @@ namespace joblist
class RowEstimator
{
public:
/** @brief ctor
*/
RowEstimator(): fExtentsToSample(20), fIntDistinctAdjust(1), fDecDistinctAdjust(1), fChar1DistinctAdjust(1),
fChar2Thru7DistinctAdjust(1), fDictDistinctAdjust(1), fDateDistinctAdjust(1) { }
/** @brief ctor
*/
RowEstimator(): fExtentsToSample(20), fIntDistinctAdjust(1), fDecDistinctAdjust(1), fChar1DistinctAdjust(1),
fChar2Thru7DistinctAdjust(1), fDictDistinctAdjust(1), fDateDistinctAdjust(1) { }
/** @brief estimate the number of rows that will be returned for a particular tuple batch primitive step.
*
* @param cpColVec vector of ColumnCommandJL pointers associated to the step.
* @param scanFlags vector of flags with one entry per extent populated by the casual
* partitioning evaluation, each that will be scanned are true, the ones that
* were eliminated by casual partitioining are false.
* @param dbrm DBRM object used to get the HWM.
* @parm oid The objectid for the first column in the step.
*
*/
uint64_t estimateRows(const std::vector<ColumnCommandJL*>& cpColVec,
const std::vector <bool>& scanFlags,
BRM::DBRM& dbrm,
const execplan::CalpontSystemCatalog::OID oid);
/** @brief estimate the number of rows that will be returned for a particular tuple batch primitive step.
*
* @param cpColVec vector of ColumnCommandJL pointers associated to the step.
* @param scanFlags vector of flags with one entry per extent populated by the casual
* partitioning evaluation, each that will be scanned are true, the ones that
* were eliminated by casual partitioining are false.
* @param dbrm DBRM object used to get the HWM.
* @parm oid The objectid for the first column in the step.
*
*/
uint64_t estimateRows(const std::vector<ColumnCommandJL*>& cpColVec,
const std::vector <bool>& scanFlags,
BRM::DBRM& dbrm,
const execplan::CalpontSystemCatalog::OID oid);
/** @brief Estimate the number of rows that will be returned for a particular table given
* a ColumnCommandJL for non casual partitioning column. Added for bug 3503.
*
* @param colCmd The ColumnCommandJL.
*
*/
uint64_t estimateRowsForNonCPColumn(ColumnCommandJL& colCmd);
/** @brief Estimate the number of rows that will be returned for a particular table given
* a ColumnCommandJL for non casual partitioning column. Added for bug 3503.
*
* @param colCmd The ColumnCommandJL.
*
*/
uint64_t estimateRowsForNonCPColumn(ColumnCommandJL& colCmd);
private:
/** @brief adjusts column values so that they can be compared via ranges.
*
* This function provides a value for dates, datetimes, and strings that can be used for distinct value estimation and
* comparisons.
*
* @param ct The column type.
* @param value The column value.
*
*/
uint64_t adjustValue(const execplan::CalpontSystemCatalog::ColType& ct,
const uint64_t& value);
/** @brief adjusts column values so that they can be compared via ranges.
*
* This function provides a value for dates, datetimes, and strings that can be used for distinct value estimation and
* comparisons.
*
* @param ct The column type.
* @param value The column value.
*
*/
uint64_t adjustValue(const execplan::CalpontSystemCatalog::ColType& ct,
const uint64_t& value);
uint32_t daysThroughMonth(uint32_t mth);
uint32_t daysThroughMonth(uint32_t mth);
uint32_t estimateDistinctValues(const execplan::CalpontSystemCatalog::ColType& ct,
const uint64_t& min,
const uint64_t& max,
const char cpStatus);
uint32_t estimateDistinctValues(const execplan::CalpontSystemCatalog::ColType& ct,
const uint64_t& min,
const uint64_t& max,
const char cpStatus);
/** @brief returns a factor between 0 and 1 for the estimate of rows that will qualify the given individual operation.
*
* This function works for a single operation such as "col1 = 5".
*
* @param ct The column type.
* @param min The minimum value in the range.
* @param max The maximum value in the range.
* @parm cpStatus The status of the CP data (whether it's valid).
*
*/
/** @brief returns a factor between 0 and 1 for the estimate of rows that will qualify the given individual operation.
*
* This function works for a single operation such as "col1 = 5".
*
* @param ct The column type.
* @param min The minimum value in the range.
* @param max The maximum value in the range.
* @parm cpStatus The status of the CP data (whether it's valid).
*
*/
template<class T>
float estimateOpFactor(const T& min, const T& max, const T& value, char op, uint8_t lcf,
uint32_t distinctValues, char cpStatus);
float estimateOpFactor(const T& min, const T& max, const T& value, char op, uint8_t lcf,
uint32_t distinctValues, char cpStatus);
/** @brief returns a factor between 0 and 1 for the estimate of rows that will qualify
* the given operation(s).
*
* This function works for multiple operations against the same column such as
/** @brief returns a factor between 0 and 1 for the estimate of rows that will qualify
* the given operation(s).
*
* This function works for multiple operations against the same column such as
* "col1 = 5 or col1 = 10". It calls estimateOpFactor for each individual operation.
*
* @param emEntry The extent map entry for the extent being evaluated.
* @param msgDataPtr The filter string.
* @param ct The column type.
* @param BOP The binary operator for the filter predicates (eg. OR for col1 = 5 or col1 = 10)
* @param rowsInExtent The number of rows in the extent being evaluated.
*
*/
float estimateRowReturnFactor(const BRM::EMEntry& emEntry,
const messageqcpp::ByteStream* msgDataPtr,
const uint16_t NOPS,
const execplan::CalpontSystemCatalog::ColType& ct,
const uint8_t BOP,
const uint32_t& rowsInExtent);
*
* @param emEntry The extent map entry for the extent being evaluated.
* @param msgDataPtr The filter string.
* @param ct The column type.
* @param BOP The binary operator for the filter predicates (eg. OR for col1 = 5 or col1 = 10)
* @param rowsInExtent The number of rows in the extent being evaluated.
*
*/
float estimateRowReturnFactor(const BRM::EMEntry& emEntry,
const messageqcpp::ByteStream* msgDataPtr,
const uint16_t NOPS,
const execplan::CalpontSystemCatalog::ColType& ct,
const uint8_t BOP,
const uint32_t& rowsInExtent);
// Configurables read from Columnstore.xml - future.
uint32_t fExtentsToSample;
uint32_t fIntDistinctAdjust;
uint32_t fDecDistinctAdjust;
uint32_t fChar1DistinctAdjust;
uint32_t fChar2Thru7DistinctAdjust;
uint32_t fDictDistinctAdjust;
uint32_t fDateDistinctAdjust;
// Configurables read from Columnstore.xml - future.
uint32_t fExtentsToSample;
uint32_t fIntDistinctAdjust;
uint32_t fDecDistinctAdjust;
uint32_t fChar1DistinctAdjust;
uint32_t fChar2Thru7DistinctAdjust;
uint32_t fDictDistinctAdjust;
uint32_t fDateDistinctAdjust;
static const uint32_t fRowsPerExtent = 8192 * 1024;
static const uint32_t fBlockSize = 8192; // Block size in bytes.
static const uint32_t fRowsPerExtent = 8192 * 1024;
static const uint32_t fBlockSize = 8192; // Block size in bytes.
// Limits the number of comparisons for each extent. Example, in clause w/ 1000 values will limit the checks to
// the number below.
static const uint32_t fMaxComparisons = 10;
// Limits the number of comparisons for each extent. Example, in clause w/ 1000 values will limit the checks to
// the number below.
static const uint32_t fMaxComparisons = 10;
}; // RowEstimator