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authorLibravatarUnit 193 <unit193@ubuntu.com>2018-07-27 23:54:15 -0400
committerLibravatarUnit 193 <unit193@ubuntu.com>2018-07-27 23:54:15 -0400
commit6d3d39356473078c6b47e03b8a7616e4b34de928 (patch)
treefe5be2e6a08e4cfc73207746aba4c9fccfecfa10 /Plugins/DbSqlite2/queryexecutorsqlite2delete.h
parentf98e49169a40876bcf1df832de6e908d1b350193 (diff)
parentfeda8a7db8d1d7c5439aa8f8feef7cc0dd2b59a0 (diff)
Update upstream source from tag 'upstream/3.2.1+dfsg1'
Update to upstream version '3.2.1+dfsg1' with Debian dir 5ea0333565de4dc898c062cc0ff4ba1153e2c1e4
Diffstat (limited to 'Plugins/DbSqlite2/queryexecutorsqlite2delete.h')
-rw-r--r--Plugins/DbSqlite2/queryexecutorsqlite2delete.h24
1 files changed, 24 insertions, 0 deletions
diff --git a/Plugins/DbSqlite2/queryexecutorsqlite2delete.h b/Plugins/DbSqlite2/queryexecutorsqlite2delete.h
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+#ifndef QUERYEXECUTORSQLITE2DELETE_H
+#define QUERYEXECUTORSQLITE2DELETE_H
+
+#include "db/queryexecutorsteps/queryexecutorstep.h"
+
+/**
+ * @brief The QueryExecutorSqlite2Delete class
+ *
+ * From SQLite2 documentation:
+ *
+ * Because of this optimization, the change count for "DELETE FROM table" will be zero
+ * regardless of the number of elements that were originally in the table.
+ * To get an accurate count of the number of rows deleted, use "DELETE FROM table WHERE 1" instead.
+ *
+ * This extra step will add "WHERE 1" if there is no WHERE for DELETE query.
+ *
+ */
+class QueryExecutorSqlite2Delete : public QueryExecutorStep
+{
+ public:
+ bool exec();
+};
+
+#endif // QUERYEXECUTORSQLITE2DELETE_H