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An experimental branch with code that allows virtual tables to be declared

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as WITHOUT ROWID tables. This might be useful for virtual tables that model
external data sources that do not have a convenient way of computing a unique
rowid.  The current check-in almost works, but there are still serious issues.

FossilOrigin-Name: 49638f180e26477974cacc69b79e0be0a5e18b29
This commit is contained in:
drh
2016-05-31 21:18:15 +00:00
parent 1fc1a0f280
commit 62340f8498
6 changed files with 69 additions and 61 deletions
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12
src/vtab.c
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@@ -754,10 +754,14 @@ int sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){
&& (pParse->pNewTable->tabFlags & TF_Virtual)==0
){
if( !pTab->aCol ){
pTab->aCol = pParse->pNewTable->aCol;
pTab->nCol = pParse->pNewTable->nCol;
pParse->pNewTable->nCol = 0;
pParse->pNewTable->aCol = 0;
Table *pNew = pParse->pNewTable;
pTab->aCol = pNew->aCol;
pTab->nCol = pNew->nCol;
pTab->tabFlags |= pNew->tabFlags & TF_WithoutRowid;
pTab->pIndex = pNew->pIndex;
pNew->nCol = 0;
pNew->aCol = 0;
pNew->pIndex = 0;
}
pCtx->bDeclared = 1;
}else{