BT Revert "Fix the behaviour of sql classes regarding quoted identifiers"

This reverts commit bb7bddc47dd0748b45d22180d9e3c8e5209010b3
due to forward binary compatibility issues in a point release.
(cherry picked from commit b8430baeadd62b643ff07a2588c62141146c08fd)

Conflicts:

	tests/auto/qsqldriver/tst_qsqldriver.cpp

1 files changed, 4 insertions, 12 deletions

diff --git a/src/sql/drivers/sqlite/qsql_sqlite.cpp b/src/sql/drivers/sqlite/qsql_sqlite.cpp
index a8a4682..9883b4d 100644
--- a/src/sql/drivers/sqlite/qsql_sqlite.cpp
+++ b/src/sql/drivers/sqlite/qsql_sqlite.cpp
@@ -661,13 +661,9 @@ QSqlIndex QSQLiteDriver::primaryIndex(const QString &tblname) const
     if (!isOpen())
         return QSqlIndex();
 
-    QString table = tblname;
-    if (isIdentifierEscaped(table, QSqlDriver::TableName))
-        table = stripDelimiters(table, QSqlDriver::TableName);
-
     QSqlQuery q(createResult());
     q.setForwardOnly(true);
-    return qGetTableInfo(q, table, true);
+    return qGetTableInfo(q, tblname, true);
 }
 
 QSqlRecord QSQLiteDriver::record(const QString &tbl) const
@@ -675,13 +671,9 @@ QSqlRecord QSQLiteDriver::record(const QString &tbl) const
     if (!isOpen())
         return QSqlRecord();
 
-    QString table = tbl;
-    if (isIdentifierEscaped(table, QSqlDriver::TableName))
-        table = stripDelimiters(table, QSqlDriver::TableName);
-
     QSqlQuery q(createResult());
     q.setForwardOnly(true);
-    return qGetTableInfo(q, table);
+    return qGetTableInfo(q, tbl);
 }
 
 QVariant QSQLiteDriver::handle() const
@@ -689,10 +681,10 @@ QVariant QSQLiteDriver::handle() const
     return qVariantFromValue(d->access);
 }
 
-QString QSQLiteDriver::escapeIdentifier(const QString &identifier, IdentifierType type) const
+QString QSQLiteDriver::escapeIdentifier(const QString &identifier, IdentifierType /*type*/) const
 {
     QString res = identifier;
-    if(!identifier.isEmpty() && !isIdentifierEscaped(identifier, type) ) {
+    if(!identifier.isEmpty() && identifier.left(1) != QString(QLatin1Char('"')) && identifier.right(1) != QString(QLatin1Char('"')) ) {
         res.replace(QLatin1Char('"'), QLatin1String("\"\""));
         res.prepend(QLatin1Char('"')).append(QLatin1Char('"'));
         res.replace(QLatin1Char('.'), QLatin1String("\".\""));