database/mariadb-columnstore-engine
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Add PrimProc support for selective block loading for 16-byte columns.

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This commit is contained in:
Gagan Goel
2020-12-11 14:23:45 -05:00
parent 9c623a5434
commit a91fb15b07
9 changed files with 24 additions and 26 deletions
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22
primitives/primproc/columncommand.cpp
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@ -127,7 +127,7 @@ void ColumnCommand::makeScanMsg()
primMsg->ism.Size = baseMsgLength;
primMsg->NVALS = 0;
primMsg->LBID = lbid;
primMsg->RidFlags = 0xFF;
primMsg->RidFlags = 0xFFFF;
// cout << "scanning lbid " << lbid << " colwidth = " << primMsg->DataSize <<
// " filterCount = " << filterCount << " outputType = " <<
@ -148,7 +148,7 @@ void ColumnCommand::loadData()
{
uint32_t wasCached;
uint32_t blocksRead;
uint8_t _mask;
uint16_t _mask;
uint64_t oidLastLbid = 0;
bool lastBlockReached = false;
oidLastLbid = getLastLbid();
@ -161,7 +161,7 @@ void ColumnCommand::loadData()
_mask = mask;
// primMsg->RidFlags = 0xff; // disables selective block loading
// primMsg->RidFlags = 0xffff; // disables selective block loading
//cout <<__FILE__ << "::issuePrimitive() o: " << getOID() << " l:" << primMsg->LBID << " ll: " << oidLastLbid << endl;
for (i = 0; i < colType.colWidth; ++i, _mask <<= shift)
@ -599,30 +599,28 @@ void ColumnCommand::prep(int8_t outputType, bool absRids)
// memcpy(primMsg + 1, filterString.buf(), filterString.length());
// JFYI This switch results are used by index scan code that is unused
// as of 1.5
switch (colType.colWidth)
{
case 1:
shift = 16;
mask = 0xFFFF;
break;
case 2:
shift = 8;
mask = 0xFF;
break;
case 2:
case 4:
shift = 4;
mask = 0x0F;
break;
case 4:
case 8:
shift = 2;
mask = 0x03;
break;
case 8:
shift = 1;
mask = 0x01;
break;
case 16:
shift = 1;
mask = 0x01;