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Change SQLITE_TESTCTRL_INITMODE to SQLITE_TESTCTRL_IMPOSTER. Revise the order

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of parameters.  Give it the ability to reset the schema parse table so that
imposter tables can be erased.

FossilOrigin-Name: 42d5601739c90434e5adfda8fa99ef7b903877db
This commit is contained in:
drh
2015-01-30 20:59:27 +00:00
parent 0699f29a14
commit 1ffede8c86
10 changed files with 116 additions and 50 deletions
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25
src/main.c
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@@ -3599,15 +3599,30 @@ int sqlite3_test_control(int op, ...){
break;
}
/* sqlite3_test_control(SQLITE_TESTCTRL_INITMODE, db, busy, iDb, newTnum);
/* sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, dbName, onOff, tnum);
**
** Set the db->init.busy, db->init.iDb, and db->init.tnum fields.
** This test control is used to create imposter tables. "db" is a pointer
** to the database connection. dbName is the database name (ex: "main" or
** "temp") which will receive the imposter. "onOff" turns imposter mode on
** or off. "tnum" is the root page of the b-tree to which the imposter
** table should connect.
**
** Enable imposter mode only when the schema has already been parsed. Then
** run a single CREATE TABLE statement to construct the imposter table in the
** parsed schema. Then turn imposter mode back off again.
**
** If onOff==0 and tnum>0 then reset the schema for all databases, causing
** the schema to be reparsed the next time it is needed. This has the
** effect of erasing all imposter tables.
*/
case SQLITE_TESTCTRL_INITMODE: {
case SQLITE_TESTCTRL_IMPOSTER: {
sqlite3 *db = va_arg(ap, sqlite3*);
db->init.busy = va_arg(ap,int);
db->init.iDb = va_arg(ap,int);
db->init.iDb = sqlite3FindDbName(db, va_arg(ap,const char*));
db->init.busy = db->init.imposterTable = va_arg(ap,int);
db->init.newTnum = va_arg(ap,int);
if( db->init.busy==0 && db->init.newTnum>0 ){
sqlite3ResetAllSchemasOfConnection(db);
}
break;
}
}