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Reduce the size of the SrcItem object by combining fields into a union.

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FossilOrigin-Name: a4c59ac3c6ec979c25b544d29e47b8e39f6439c098eed8f84b3bd506c9adf047
This commit is contained in:
drh
2024-08-17 19:46:49 +00:00
parent 21363ac78d
commit 8797bd695f
13 changed files with 92 additions and 59 deletions
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13
src/trigger.c
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@@ -151,9 +151,9 @@ void sqlite3BeginTrigger(
** To maintain backwards compatibility, ignore the database
** name on pTableName if we are reparsing out of the schema table
*/
if( db->init.busy && iDb!=1 ){
sqlite3DbFree(db, pTableName->a[0].zDatabase);
pTableName->a[0].zDatabase = 0;
if( db->init.busy && iDb!=1 && ALWAYS(pTableName->a[0].fg.fixedSchema==0) ){
sqlite3DbFree(db, pTableName->a[0].u4.zDatabase);
pTableName->a[0].u4.zDatabase = 0;
}
/* If the trigger name was unqualified, and the table is a temp table,
@@ -631,7 +631,8 @@ void sqlite3DropTrigger(Parse *pParse, SrcList *pName, int noErr){
}
assert( pName->nSrc==1 );
zDb = pName->a[0].zDatabase;
assert( pName->a[0].fg.fixedSchema==0 );
zDb = pName->a[0].u4.zDatabase;
zName = pName->a[0].zName;
assert( zDb!=0 || sqlite3BtreeHoldsAllMutexes(db) );
for(i=OMIT_TEMPDB; i<db->nDb; i++){
@@ -868,7 +869,9 @@ SrcList *sqlite3TriggerStepSrc(
Schema *pSchema = pStep->pTrig->pSchema;
pSrc->a[0].zName = zName;
if( pSchema!=db->aDb[1].pSchema ){
pSrc->a[0].pSchema = pSchema;
assert( pSrc->a[0].fg.fixedSchema || pSrc->a[0].u4.zDatabase==0 );
pSrc->a[0].u4.pSchema = pSchema;
pSrc->a[0].fg.fixedSchema = 1;
}
if( pStep->pFrom ){
SrcList *pDup = sqlite3SrcListDup(db, pStep->pFrom, 0);