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Ensure that the Expr objects that describe indexed expressions are not modified

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by code generation.  Fix for an assert() problem found by Jon Metzman using AFL.

FossilOrigin-Name: 34073ce87d88a02313217023ae92e15939192cd9
This commit is contained in:
drh
2015-12-21 15:22:13 +00:00
parent d319b8c143
commit 1c75c9d7f1
6 changed files with 42 additions and 13 deletions
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16
test/indexexpr1.test
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@ -307,5 +307,21 @@ do_catchsql_test indexexpr1-910 {
INSERT INTO t9(a,b,c,d) VALUES(5,6,7,-8);
} {1 {UNIQUE constraint failed: index 't9x1'}}
# Test cases derived from a NEVER() maro failure discovered by
# Jonathan Metzman using AFL
#
do_execsql_test indexexpr1-1000 {
DROP TABLE IF EXISTS t0;
CREATE TABLE t0(a,b,t);
CREATE INDEX i ON t0(a in(0,1));
INSERT INTO t0 VALUES(0,1,2),(2,3,4),(5,6,7);
UPDATE t0 SET b=99 WHERE (a in(0,1))=0;
SELECT *, '|' FROM t0 ORDER BY +a;
} {0 1 2 | 2 99 4 | 5 99 7 |}
do_execsql_test indexexpr1-1010 {
UPDATE t0 SET b=88 WHERE (a in(0,1))=1;
SELECT *, '|' FROM t0 ORDER BY +a;
} {0 88 2 | 2 99 4 | 5 99 7 |}
finish_test