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fix(query): check for buffer in first/last merge.

This commit is contained in:
Haojun Liao 2022-12-20 17:31:36 +08:00
parent 0f60ddb3cd
commit 7059d71e1f
1 changed files with 17 additions and 13 deletions
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30
source/libs/function/src/builtinsimpl.c
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@ -1995,16 +1995,31 @@ static FORCE_INLINE TSKEY getRowPTs(SColumnInfoData* pTsColInfo, int32_t rowInde
return *(TSKEY*)colDataGetData(pTsColInfo, rowIndex);
}
static void prepareBuf(SqlFunctionCtx* pCtx) {
if (pCtx->subsidiaries.rowLen == 0) {
int32_t rowLen = 0;
for (int32_t j = 0; j < pCtx->subsidiaries.num; ++j) {
SqlFunctionCtx* pc = pCtx->subsidiaries.pCtx[j];
rowLen += pc->pExpr->base.resSchema.bytes;
}
pCtx->subsidiaries.rowLen = rowLen + pCtx->subsidiaries.num * sizeof(bool);
pCtx->subsidiaries.buf = taosMemoryMalloc(pCtx->subsidiaries.rowLen);
}
ASSERT(pCtx->subsidiaries.buf != NULL);
ASSERT(pCtx->subsidiaries.rowLen > 0);
}
static void firstlastSaveTupleData(const SSDataBlock* pSrcBlock, int32_t rowIndex, SqlFunctionCtx* pCtx,
SFirstLastRes* pInfo) {
if (pCtx->subsidiaries.num <= 0) {
return;
}
prepareBuf(pCtx);
if (!pInfo->hasResult) {
pInfo->pos = saveTupleData(pCtx, rowIndex, pSrcBlock, NULL);
ASSERT(pCtx->subsidiaries.buf != NULL);
ASSERT(pCtx->subsidiaries.rowLen > 0);
} else {
updateTupleData(pCtx, rowIndex, pSrcBlock, &pInfo->pos);
}
@ -2960,17 +2975,6 @@ static STuplePos doSaveTupleData(SSerializeDataHandle* pHandle, const void* pBuf
}
STuplePos saveTupleData(SqlFunctionCtx* pCtx, int32_t rowIndex, const SSDataBlock* pSrcBlock, const STupleKey* pKey) {
if (pCtx->subsidiaries.rowLen == 0) {
int32_t rowLen = 0;
for (int32_t j = 0; j < pCtx->subsidiaries.num; ++j) {
SqlFunctionCtx* pc = pCtx->subsidiaries.pCtx[j];
rowLen += pc->pExpr->base.resSchema.bytes;
}
pCtx->subsidiaries.rowLen = rowLen + pCtx->subsidiaries.num * sizeof(bool);
pCtx->subsidiaries.buf = taosMemoryMalloc(pCtx->subsidiaries.rowLen);
}
char* buf = serializeTupleData(pSrcBlock, rowIndex, &pCtx->subsidiaries, pCtx->subsidiaries.buf);
return doSaveTupleData(&pCtx->saveHandle, buf, pCtx->subsidiaries.rowLen, pKey);
}