database/mariadb-columnstore-engine
1
0
Fork 0
mirror of https://github.com/mariadb-corporation/mariadb-columnstore-engine.git synced 2025-07-30 19:23:07 +03:00
Code Activity

MCOL-641 Work of Ivan Zuniga on basic read and write support for Binary16

Browse Source
This commit is contained in:
Gagan Goel
2019-10-24 14:01:47 -04:00
committed by Roman Nozdrin
parent d943beb445
commit 32f6167067
48 changed files with 1114 additions and 75 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
writeengine/wrapper/we_colop.cpp
View File

@ -123,7 +123,9 @@ int ColumnOp::allocRowId(const TxnID& txnid, bool useStartingExtent,
newFile = false;
Column newCol;
unsigned char buf[BYTE_PER_BLOCK];
unsigned char* curVal;
int64_t emptyVal = getEmptyRowValue(column.colDataType, column.colWidth); // Seems is ok have it here and just once
if (useStartingExtent)
{
// ZZ. For insert select, skip the hwm block and start inserting from the next block
@ -137,10 +139,10 @@ int ColumnOp::allocRowId(const TxnID& txnid, bool useStartingExtent,
if ( rc != NO_ERROR)
return rc;
for (j = 0; j < totalRowPerBlock; j++)
for (j = 0, curVal = buf; j < totalRowPerBlock; j++, curVal += column.colWidth)
{
if (isEmptyRow(buf, j, column))
if (isEmptyRow((uint64_t*)curVal, emptyVal, column.colWidth))
{
rowIdArray[counter] = getRowId(hwm, column.colWidth, j);
rowsallocated++;
@ -192,9 +194,9 @@ int ColumnOp::allocRowId(const TxnID& txnid, bool useStartingExtent,
}
}
for (j = 0; j < totalRowPerBlock; j++)
for (j = 0, curVal = buf; j < totalRowPerBlock; j++, curVal += column.colWidth)
{
if (isEmptyRow(buf, j, column))
if (isEmptyRow((uint64_t*)curVal, emptyVal, column.colWidth))
{
rowIdArray[counter] = getRowId(hwm, column.colWidth, j);
rowsallocated++;
@ -492,9 +494,9 @@ int ColumnOp::allocRowId(const TxnID& txnid, bool useStartingExtent,
}
}
for (j = 0; j < totalRowPerBlock; j++)
for (j = 0, curVal = buf; j < totalRowPerBlock; j++, curVal += column.colWidth)
{
if (isEmptyRow(buf, j, column))
if (isEmptyRow((uint64_t*)curVal, emptyVal, column.colWidth)) // Why to check it if beacause line 483 is always true ?
{
rowIdArray[counter] = getRowId(newHwm, column.colWidth, j);
rowsallocated++;
@ -533,9 +535,9 @@ int ColumnOp::allocRowId(const TxnID& txnid, bool useStartingExtent,
}
}
for (j = 0; j < totalRowPerBlock; j++)
for (j = 0, curVal = buf; j < totalRowPerBlock; j++, curVal += column.colWidth)
{
if (isEmptyRow(buf, j, column))
if (isEmptyRow((uint64_t*)curVal, emptyVal, column.colWidth))
{
rowIdArray[counter] = getRowId(newHwm, newCol.colWidth, j);
rowsallocated++;
@ -1064,7 +1066,7 @@ int ColumnOp::fillColumn(const TxnID& txnid, Column& column, Column& refCol, voi
startColFbo++;
colBufOffset = 0;
}
while (((refBufOffset + refCol.colWidth) <= BYTE_PER_BLOCK) &&
((colBufOffset + column.colWidth) <= BYTE_PER_BLOCK))
{
@ -1080,7 +1082,8 @@ int ColumnOp::fillColumn(const TxnID& txnid, Column& column, Column& refCol, voi
}
else if (column.compressionType != 0) //@Bug 3866, fill the empty row value for compressed chunk
{
memcpy(colBuf + colBufOffset, &emptyVal, column.colWidth);
for(int b = 0, w = column.colWidth; b < column.colWidth; b += 8, w = 8) //FIXME for no loop!
memcpy(colBuf + colBufOffset + b, &emptyVal, w);
dirty = true;
}
@ -1405,18 +1408,39 @@ void ColumnOp::initColumn(Column& column) const
* RETURN:
* true if success, false otherwise
***********************************************************/
bool ColumnOp::isEmptyRow(unsigned char* buf, int offset, const Column& column)
// It is called at just 4 places on allocRowId() but all the time inside extend scanning loops
inline bool ColumnOp::isEmptyRow(uint64_t* curVal, uint64_t emptyVal, const int colWidth)
{
bool emptyFlag = true;
uint64_t curVal, emptyVal;
//Calling it here makes calling it "i" times from the calling loop at allocRowId()
//uint64_t emptyVal = getEmptyRowValue(column.colDataType, column.colWidth);
// No need for it if change param type.. just been lazy to add extra castings
//uint64_t &emptyVal = column.emptyVal;
//no need to multiply over and over if just increment the pointer on the caller
//uint64_t *curVal = (uint64_t*)(buf + offset * column.colWidth);
memcpy(&curVal, buf + offset * column.colWidth, column.colWidth);
emptyVal = getEmptyRowValue(column.colDataType, column.colWidth);
switch(colWidth){
case 1:
return *(uint8_t*)curVal == emptyVal;
if (/*curVal != emptyVal*/memcmp(&curVal, &emptyVal, column.colWidth))
emptyFlag = false;
return emptyFlag;
case 2:
return *(uint16_t*)curVal == emptyVal;
case 4:
return *(uint32_t*)curVal == emptyVal;
case 8:
return *curVal == emptyVal;
case 16:
return ((curVal[0] == emptyVal) && (curVal[1] == emptyVal));
case 32:
return ((curVal[0] == emptyVal) && (curVal[1] == emptyVal)
&& (curVal[2] == emptyVal) && (curVal[3] == emptyVal));
}
}
/***********************************************************
@ -1534,7 +1558,7 @@ void ColumnOp::setColParam(Column& column,
column.colWidth = colWidth;
column.colType = colType;
column.colDataType = colDataType;
column.dataFile.fid = dataFid;
column.dataFile.fDbRoot = dbRoot;
column.dataFile.fPartition = partition;
@ -1662,6 +1686,12 @@ int ColumnOp::writeRow(Column& curCol, uint64_t totalRow, const RID* rowIdArray,
if (!bDelete) pVal = &((uint64_t*) valArray)[i];
break;
case WriteEngine::WR_BINARY:
if (!bDelete) pVal = (uint8_t*) valArray + i * curCol.colWidth;
//pOldVal = (uint8_t*) oldValArray + i * curCol.colWidth;
break;
default :
if (!bDelete) pVal = &((int*) valArray)[i];
break;
@ -1669,7 +1699,7 @@ int ColumnOp::writeRow(Column& curCol, uint64_t totalRow, const RID* rowIdArray,
if (bDelete)
{
emptyVal = getEmptyRowValue(curCol.colDataType, curCol.colWidth);
emptyVal = getEmptyRowValue(curCol.colDataType, curCol.colWidth);
pVal = &emptyVal;
}
@ -1852,7 +1882,8 @@ int ColumnOp::writeRows(Column& curCol, uint64_t totalRow, const RIDList& ridLis
}
// This is the write stuff
writeBufValue(dataBuf + dataBio, pVal, curCol.colWidth);
for(int b = 0, w = curCol.colWidth > 8 ? 8 : curCol.colWidth; b < curCol.colWidth; b += 8) //FIXME for no loop
writeBufValue(dataBuf + dataBio + b, pVal, w);
i++;