Merge the latest trunk changes (especially "PRAGMA busy_timeout" and the

ORDER BY query planner optimizations) into the sessions branch.

FossilOrigin-Name: 6ca8eae1f89d19ee23cbc3a869d85b57d29b4a7d

1 files changed, 18 insertions, 4 deletions

diff --git a/src/main.c b/src/main.c
index 34109c40f..5778f8780 100644
--- a/src/main.c
+++ b/src/main.c
@@ -475,6 +475,11 @@ int sqlite3_config(int op, ...){
       break;
     }
 
+    case SQLITE_CONFIG_COVERING_INDEX_SCAN: {
+      sqlite3GlobalConfig.bUseCis = va_arg(ap, int);
+      break;
+    }
+
     default: {
       rc = SQLITE_ERROR;
       break;
@@ -1116,6 +1121,7 @@ int sqlite3_busy_handler(
   db->busyHandler.xFunc = xBusy;
   db->busyHandler.pArg = pArg;
   db->busyHandler.nBusy = 0;
+  db->busyTimeout = 0;
   sqlite3_mutex_leave(db->mutex);
   return SQLITE_OK;
 }
@@ -1153,8 +1159,8 @@ void sqlite3_progress_handler(
 */
 int sqlite3_busy_timeout(sqlite3 *db, int ms){
   if( ms>0 ){
-    db->busyTimeout = ms;
     sqlite3_busy_handler(db, sqliteDefaultBusyCallback, (void*)db);
+    db->busyTimeout = ms;
   }else{
     sqlite3_busy_handler(db, 0, 0);
   }
@@ -1789,6 +1795,15 @@ int sqlite3_extended_errcode(sqlite3 *db){
 }
 
 /*
+** Return a string that describes the kind of error specified in the
+** argument.  For now, this simply calls the internal sqlite3ErrStr()
+** function.
+*/
+const char *sqlite3_errstr(int rc){
+  return sqlite3ErrStr(rc);
+}
+
+/*
 ** Create a new collating function for database "db".  The name is zName
 ** and the encoding is enc.
 */
@@ -2762,7 +2777,7 @@ int sqlite3_table_column_metadata(
     zDataType = pCol->zType;
     zCollSeq = pCol->zColl;
     notnull = pCol->notNull!=0;
-    primarykey  = pCol->isPrimKey!=0;
+    primarykey  = (pCol->colFlags & COLFLAG_PRIMKEY)!=0;
     autoinc = pTab->iPKey==iCol && (pTab->tabFlags & TF_Autoincrement)!=0;
   }else{
     zDataType = "INTEGER";
@@ -3025,8 +3040,7 @@ int sqlite3_test_control(int op, ...){
     */
     case SQLITE_TESTCTRL_OPTIMIZATIONS: {
       sqlite3 *db = va_arg(ap, sqlite3*);
-      int x = va_arg(ap,int);
-      db->flags = (x & SQLITE_OptMask) | (db->flags & ~SQLITE_OptMask);
+      db->dbOptFlags = (u16)(va_arg(ap, int) & 0xffff);
       break;
     }