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feat(query): add leastsquares function

This commit is contained in:
Ganlin Zhao 2022-05-09 19:37:16 +08:00
parent 79570c93a3
commit cfa77a2d39
1 changed files with 5 additions and 3 deletions
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8
source/libs/function/src/builtinsimpl.c
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@ -1131,8 +1131,10 @@ bool leastSQRFunctionSetup(SqlFunctionCtx* pCtx, SResultRowEntryInfo* pResultInf
SLeastSQRInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo); SLeastSQRInfo* pInfo = GET_ROWCELL_INTERBUF(pResultInfo);
pInfo->startVal = pCtx->param[1].param.d; pInfo->startVal = IS_FLOAT_TYPE(pCtx->param[1].param.nType) ? pCtx->param[1].param.d :
pInfo->stepVal = pCtx->param[2].param.d; (double)pCtx->param[1].param.i;
pInfo->stepVal = IS_FLOAT_TYPE(pCtx->param[1].param.nType) ? pCtx->param[2].param.d :
(double)pCtx->param[1].param.i;
return true; return true;
} }
@ -1260,7 +1262,7 @@ int32_t leastSQRFinalize(SqlFunctionCtx* pCtx, SSDataBlock* pBlock) {
int32_t currentRow = pBlock->info.rows; int32_t currentRow = pBlock->info.rows;
if (pInfo->num = 0) { if (0 == pInfo->num) {
return 0; return 0;
} }