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Rename sqlite3ExprCodeAtInit() to sqlite3ExprCodeRunJustOnce().

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Other changes to make the new code cleaner.  Test cases added.

FossilOrigin-Name: d7f18489978fdbbe3ab317485518cac91a75416ccef55898301afdd76d3b415b
This commit is contained in:
drh
2020-03-11 19:41:49 +00:00
parent 38dfbdae8a
commit 9b258c54e4
7 changed files with 55 additions and 44 deletions
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20
test/func.test
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@ -1477,4 +1477,24 @@ do_execsql_test func-34.10 {
SELECT * FROM t1;
} {1 2}
# 2020-03-11 COALESCE() should short-circuit
# See also ticket 3c9eadd2a6ba0aa5
# Both issues stem from the fact that functions that could
# throw exceptions were being factored out into initialization
# code. The fix was to put those function calls inside of
# OP_Once instead.
#
reset_db
do_execsql_test func-35.100 {
CREATE TABLE t1(x);
SELECT coalesce(x, abs(-9223372036854775808)) FROM t1;
} {}
do_execsql_test func-35.110 {
SELECT coalesce(x, 'xyz' LIKE printf('%.1000000c','y')) FROM t1;
} {}
do_execsql_test func-35.200 {
CREATE TABLE t0(c0 CHECK(ABS(-9223372036854775808)));
PRAGMA integrity_check;
} {ok}
finish_test