database/sqlite
1
0
Fork 0
mirror of https://github.com/sqlite/sqlite.git synced 2025-07-30 19:03:16 +03:00
Code Activity

If a subquery has a result column of the form "CAST(... AS NUMERIC)" then

Browse Source 
give that column no affinity rather than NUMERIC affinity.  This is because
casting to numeric preserves real values that could be integers but numeric
affinity does not.  By using no affinity on the column, we make the behavior
consistent if the subquery is implemented as a co-routine or is materialized.

FossilOrigin-Name: ece07d091c2ef3367a914187e0b6512c1f2390b8c34844536ad50e88c7e8c2f2
This commit is contained in:
drh
2022-12-12 18:58:53 +00:00
parent 124fc52d96
commit 89e160a96a
4 changed files with 68 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
test/cast.test
View File

@ -483,5 +483,36 @@ do_execsql_test cast-9.0 {
SELECT v1.c0 FROM v1, t0 WHERE v1.c0=0;
} {0}
# Set the 2022-12-10 "reopen" of ticket [https://sqlite.org/src/tktview/57c47526c3]
#
do_execsql_test cast-9.1 {
CREATE TABLE dual(dummy TEXT);
INSERT INTO dual VALUES('X');
SELECT CAST(4 AS NUMERIC);
} {4}
do_execsql_test cast-9.2 {
SELECT CAST(4.0 AS NUMERIC);
} {4.0}
do_execsql_test cast-9.3 {
SELECT CAST(4.5 AS NUMERIC);
} {4.5}
do_execsql_test cast-9.4 {
SELECT x, typeof(x) FROM (SELECT CAST(4 AS NUMERIC) AS x) JOIN dual;
} {4 integer}
do_execsql_test cast-9.5 {
SELECT x, typeof(x) FROM (SELECT CAST(4 AS NUMERIC) AS x) CROSS JOIN dual;
} {4 integer}
do_execsql_test cast-9.10 {
SELECT x, typeof(x) FROM (SELECT CAST(4.0 AS NUMERIC) AS x) JOIN dual;
} {4.0 real}
do_execsql_test cast-9.11 {
SELECT x, typeof(x) FROM (SELECT CAST(4.0 AS NUMERIC) AS x) CROSS JOIN dual;
} {4.0 real}
do_execsql_test cast-9.12 {
SELECT x, typeof(x) FROM (SELECT CAST(4.5 AS NUMERIC) AS x) JOIN dual;
} {4.5 real}
do_execsql_test cast-9.13 {
SELECT x, typeof(x) FROM (SELECT CAST(4.5 AS NUMERIC) AS x) CROSS JOIN dual;
} {4.5 real}
finish_test