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Allows UPDATE, INSERT, and DELETEs to occur while a SELECT is pending on

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the same table. (CVS 3355)

FossilOrigin-Name: 8c52d2ad468615e50a727adab2977a0bef1bc068
This commit is contained in:
drh
2006-08-16 16:42:48 +00:00
parent 73bdf07713
commit 980b1a7405
9 changed files with 261 additions and 206 deletions
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10
test/delete2.test
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@ -29,7 +29,7 @@
# The solution to the problem was to detect that the table is locked
# before the index entry is deleted.
#
# $Id: delete2.test,v 1.6 2006/01/05 11:34:34 danielk1977 Exp $
# $Id: delete2.test,v 1.7 2006/08/16 16:42:48 drh Exp $
#
set testdir [file dirname $argv0]
@ -65,20 +65,20 @@ do_test delete2-1.4 {
} SQLITE_ROW
integrity_check delete2-1.5
# Try to delete a row from the table. The delete should fail.
# Try to delete a row from the table while a read is in process.
# As of 2006-08-16, this is allowed. (It used to fail with SQLITE_LOCKED.)
#
breakpoint
do_test delete2-1.6 {
catchsql {
DELETE FROM q WHERE rowid=1
}
} {1 {database table is locked}}
} {0 {}}
integrity_check delete2-1.7
do_test delete2-1.8 {
execsql {
SELECT * FROM q;
}
} {hello id.1 goodbye id.2 again id.3}
} {goodbye id.2 again id.3}
# Finalize the query, thus clearing the lock on the table. Then
# retry the delete. The delete should work this time.