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-rw-r--r--user_guide_src/source/database/query_builder.rst7
1 files changed, 6 insertions, 1 deletions
diff --git a/user_guide_src/source/database/query_builder.rst b/user_guide_src/source/database/query_builder.rst
index 9a96db003..5bfdfdb52 100644
--- a/user_guide_src/source/database/query_builder.rst
+++ b/user_guide_src/source/database/query_builder.rst
@@ -1058,4 +1058,9 @@ run the query::
$data = $this->db->get()->result_array();
// Would execute and return an array of results of the following query:
- // SELECT field1, field1 from mytable where field3 = 5; \ No newline at end of file
+ // SELECT field1, field1 from mytable where field3 = 5;
+
+.. note:: Double calls to ``get_compiled_select()`` while you're using the
+ Query Builder Caching functionality and NOT resetting your queries
+ will results in the cache being merged twice. That in turn will
+ i.e. if you're caching a ``select()`` - select the same field twice. \ No newline at end of file