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| author | drh <drh@noemail.net> | 2019-12-13 01:12:21 +0000 |
|---|---|---|
| committer | drh <drh@noemail.net> | 2019-12-13 01:12:21 +0000 |
| commit | 85d9411c09154932619e77122b3677cd78a44664 (patch) | |
| tree | 9e50afbb083e7d0048bc26ad443252999a8c9776 /src/resolve.c | |
| parent | 1b47c9c98e9e00bc24d11e6c6cad2c754b05dd02 (diff) | |
| parent | c4938ea2ba17cdba4bd03a23b2f3cfd783f79c0a (diff) | |
| download | sqlite-85d9411c09154932619e77122b3677cd78a44664.tar.gz sqlite-85d9411c09154932619e77122b3677cd78a44664.zip | |
Reduce the size of ExprList to 24-bytes per entry, down from 32-bytes per
entry. This helps keep lookaside allocations in the mini-size.
FossilOrigin-Name: bda92d92bf69a73bc6dd498f92578ad6e81111a3f97bc8724d1720e7283a83b6
Diffstat (limited to 'src/resolve.c')
| -rw-r--r-- | src/resolve.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/src/resolve.c b/src/resolve.c index b3c331535..572e0a9f3 100644 --- a/src/resolve.c +++ b/src/resolve.c @@ -132,13 +132,16 @@ static int nameInUsingClause(IdList *pUsing, const char *zCol){ ** and zCol. If any of zDb, zTab, and zCol are NULL then those fields will ** match anything. */ -int sqlite3MatchSpanName( - const char *zSpan, +int sqlite3MatchEName( + const struct ExprList_item *pItem, const char *zCol, const char *zTab, const char *zDb ){ int n; + const char *zSpan; + if( pItem->eEName!=ENAME_TAB ) return 0; + zSpan = pItem->zEName; for(n=0; ALWAYS(zSpan[n]) && zSpan[n]!='.'; n++){} if( zDb && (sqlite3StrNICmp(zSpan, zDb, n)!=0 || zDb[n]!=0) ){ return 0; @@ -267,7 +270,7 @@ static int lookupName( int hit = 0; pEList = pItem->pSelect->pEList; for(j=0; j<pEList->nExpr; j++){ - if( sqlite3MatchSpanName(pEList->a[j].zSpan, zCol, zTab, zDb) ){ + if( sqlite3MatchEName(&pEList->a[j], zCol, zTab, zDb) ){ cnt++; cntTab = 2; pMatch = pItem; @@ -448,8 +451,11 @@ static int lookupName( pEList = pNC->uNC.pEList; assert( pEList!=0 ); for(j=0; j<pEList->nExpr; j++){ - char *zAs = pEList->a[j].zEName; - if( zAs!=0 && sqlite3StrICmp(zAs, zCol)==0 ){ + char *zAs; + if( pEList->a[j].eEName==ENAME_NAME + && (zAs = pEList->a[j].zEName)!=0 + && sqlite3StrICmp(zAs, zCol)==0 + ){ Expr *pOrig; assert( pExpr->pLeft==0 && pExpr->pRight==0 ); assert( pExpr->x.pList==0 ); @@ -1116,7 +1122,10 @@ static int resolveAsName( char *zCol = pE->u.zToken; for(i=0; i<pEList->nExpr; i++){ char *zAs = pEList->a[i].zEName; - if( zAs!=0 && sqlite3StrICmp(zAs, zCol)==0 ){ + if( pEList->a[i].eEName==ENAME_NAME + && (zAs = pEList->a[i].zEName)!=0 + && sqlite3StrICmp(zAs, zCol)==0 + ){ return i+1; } } |