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Fix a case where fts3 was erroneously reporting corruption.

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FossilOrigin-Name: e6c7683c7503ac743d1d476c60c31f887b7ad829e26e812c25acdd4366044db8
This commit is contained in:
dan
2021-03-03 16:00:26 +00:00
parent fad1ad0526
commit c6920cdb0c
3 changed files with 26 additions and 27 deletions
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37
ext/fts3/fts3_write.c
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@ -4335,27 +4335,26 @@ static int fts3IncrmergeLoad(
while( reader.aNode && rc==SQLITE_OK ) rc = nodeReaderNext(&reader);
blobGrowBuffer(&pNode->key, reader.term.n, &rc);
if( rc==SQLITE_OK ){
if( reader.term.n<=0 ){
rc = FTS_CORRUPT_VTAB;
}else{
assert_fts3_nc( reader.term.n>0 || reader.aNode==0 );
if( reader.term.n>0 ){
memcpy(pNode->key.a, reader.term.a, reader.term.n);
pNode->key.n = reader.term.n;
if( i>0 ){
char *aBlock = 0;
int nBlock = 0;
pNode = &pWriter->aNodeWriter[i-1];
pNode->iBlock = reader.iChild;
rc = sqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock,0);
blobGrowBuffer(&pNode->block,
MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc
);
if( rc==SQLITE_OK ){
memcpy(pNode->block.a, aBlock, nBlock);
pNode->block.n = nBlock;
memset(&pNode->block.a[nBlock], 0, FTS3_NODE_PADDING);
}
sqlite3_free(aBlock);
}
pNode->key.n = reader.term.n;
if( i>0 ){
char *aBlock = 0;
int nBlock = 0;
pNode = &pWriter->aNodeWriter[i-1];
pNode->iBlock = reader.iChild;
rc = sqlite3Fts3ReadBlock(p, reader.iChild, &aBlock, &nBlock,0);
blobGrowBuffer(&pNode->block,
MAX(nBlock, p->nNodeSize)+FTS3_NODE_PADDING, &rc
);
if( rc==SQLITE_OK ){
memcpy(pNode->block.a, aBlock, nBlock);
pNode->block.n = nBlock;
memset(&pNode->block.a[nBlock], 0, FTS3_NODE_PADDING);
}
sqlite3_free(aBlock);
}
}
}