From df93ea865e9e1dc4c9c59e8143df5c4a33132b4b Mon Sep 17 00:00:00 2001
From: Alexandra Dobrescu <alexandra-maria.dobrescu@cern.ch>
Date: Mon, 16 Jul 2018 14:44:34 +0200
Subject: [PATCH] [sqlite] Document that SQLite will always return -1 as
rowCount.
---
sql/sqlite/inc/TSQLiteResult.h | 1 +
sql/sqlite/src/TSQLiteResult.cxx | 9 +++++++++
2 files changed, 10 insertions(+)
diff --git a/sql/sqlite/inc/TSQLiteResult.h b/sql/sqlite/inc/TSQLiteResult.h
index 4d9197ad32f..1ed07a4561c 100644
--- a/sql/sqlite/inc/TSQLiteResult.h
+++ b/sql/sqlite/inc/TSQLiteResult.h
@@ -35,6 +35,7 @@ public:
void Close(Option_t *opt="");
Int_t GetFieldCount();
const char *GetFieldName(Int_t field);
+ Int_t GetRowCount() const;
TSQLRow *Next();
ClassDef(TSQLiteResult, 0) // SQLite query result
diff --git a/sql/sqlite/src/TSQLiteResult.cxx b/sql/sqlite/src/TSQLiteResult.cxx
index 8f18d742c0f..937cab16071 100644
--- a/sql/sqlite/src/TSQLiteResult.cxx
+++ b/sql/sqlite/src/TSQLiteResult.cxx
@@ -86,6 +86,15 @@ const char *TSQLiteResult::GetFieldName(Int_t field)
return sqlite3_column_name(fResult, field);
}
+////////////////////////////////////////////////////////////////////////////////
+/// SQLite can not determine the row count for a Query, return -1 instead.
+/// For similar functionality, call Next() until it retruns nullptr.
+
+Int_t TSQLiteResult::GetRowCount() const
+{
+ return -1;
+}
+
////////////////////////////////////////////////////////////////////////////////
/// Get next query result row. The returned object must be
/// deleted by the user.
--
GitLab