Daniel Theophanes c026845bd2 database/sql: record the context error in Rows if canceled ... Previously it was intended that Rows.Scan would return an error and Rows.Err would return nil. This was problematic because drivers could not differentiate between a normal Rows.Close or a context cancel close. The alternative is to require drivers to return a Scan to return an error if the driver is closed while there are still rows to be read. This is currently not how several drivers currently work and may be difficult to detect when there are additional rows. At the same time guard the the Rows.lasterr and prevent a close while a Rows operation is active. For the drivers that do not have Context methods, do not check for context cancelation after the operation, but before for any operation that may modify the database state. Fixes #18961 Change-Id: I49a25318ecd9f97a35d5b50540ecd850c01cfa5e Reviewed-on: https://go-review.googlesource.com/36485 Reviewed-by: Russ Cox <rsc@golang.org> Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>		2017-02-08 18:30:39 +00:00
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driver	database/sql: do not store Tx options in Context	2016-12-14 18:13:13 +00:00
convert.go	database/sql: document expectations for named parameters	2016-12-01 16:52:12 +00:00
convert_test.go	database/sql: accept nil pointers to Valuers implemented on value receivers	2016-10-17 15:26:25 +00:00
ctxutil.go	database/sql: record the context error in Rows if canceled	2017-02-08 18:30:39 +00:00
doc.txt	…
example_test.go	all: minor vet fixes	2016-10-24 17:27:37 +00:00
fakedb_test.go	database/sql: document expectations for named parameters	2016-12-01 16:52:12 +00:00
sql.go	database/sql: record the context error in Rows if canceled	2017-02-08 18:30:39 +00:00
sql_test.go	database/sql: record the context error in Rows if canceled	2017-02-08 18:30:39 +00:00