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authorsblondon <sblondon@users.noreply.github.com>2020-12-19 22:52:39 (GMT)
committerGitHub <noreply@github.com>2020-12-19 22:52:39 (GMT)
commit09a36cdfb7c22f44df45b44e5561776206bcedfb (patch)
tree89d46119cc63f3d3f4eedbeef40ffcbd8c8d2782
parentc56f9df0498498d17972fe02046fd235c9a6017f (diff)
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bpo-41724: Explain when the conversion is not possible with detect_types enabled (GH-23855)
* Explain when the conversion is not possible with detect_types enabled
-rw-r--r--Doc/library/sqlite3.rst4
1 files changed, 3 insertions, 1 deletions
diff --git a/Doc/library/sqlite3.rst b/Doc/library/sqlite3.rst
index 13aa8c5..c366487 100644
--- a/Doc/library/sqlite3.rst
+++ b/Doc/library/sqlite3.rst
@@ -198,7 +198,9 @@ Module functions and constants
*detect_types* defaults to 0 (i. e. off, no type detection), you can set it to
any combination of :const:`PARSE_DECLTYPES` and :const:`PARSE_COLNAMES` to turn
- type detection on.
+ type detection on. Due to SQLite behaviour, types can't be detected for generated
+ fields (for example ``max(data)``), even when *detect_types* parameter is set. In
+ such case, the returned type is :class:`str`.
By default, *check_same_thread* is :const:`True` and only the creating thread may
use the connection. If set :const:`False`, the returned connection may be shared