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Overview
| Comment: | Add a new requirement mark for CAST expressions. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | bee2859b953c935c413de2917588159d03c672d9 |
| User & Date: | drh 2016-11-22 20:29:05 |
Context
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2016-11-23
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| 14:19 | Correctly display the names of SQL functions in the VDBE_PROFILE output. check-in: 161192f1 user: drh tags: trunk | |
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2016-11-22
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| 22:23 | Merge bug fixes and enhancements from trunk. Closed-Leaf check-in: e2c4bdf5 user: drh tags: serializable-snapshot | |
| 20:29 | Add a new requirement mark for CAST expressions. check-in: bee2859b user: drh tags: trunk | |
| 19:15 | Update requirement marks to reflect changes in wording in the documentation. No changes to code. check-in: f5ac98ef user: drh tags: trunk | |
Changes
Changes to test/e_expr.test.
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# result of the CAST expression is also NULL.
#
do_expr_test e_expr-27.2.1 { CAST(NULL AS integer) } null {}
do_expr_test e_expr-27.2.2 { CAST(NULL AS text) } null {}
do_expr_test e_expr-27.2.3 { CAST(NULL AS blob) } null {}
do_expr_test e_expr-27.2.4 { CAST(NULL AS number) } null {}
# EVIDENCE-OF: R-43522-35548 Casting a value to a type-name with no
# affinity causes the value to be converted into a BLOB.
#
do_expr_test e_expr-27.3.1 { CAST('abc' AS blob) } blob abc
do_expr_test e_expr-27.3.2 { CAST('def' AS shobblob_x) } blob def
do_expr_test e_expr-27.3.3 { CAST('ghi' AS abbLOb10) } blob ghi
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> > > > > > > |
1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 |
# result of the CAST expression is also NULL.
#
do_expr_test e_expr-27.2.1 { CAST(NULL AS integer) } null {}
do_expr_test e_expr-27.2.2 { CAST(NULL AS text) } null {}
do_expr_test e_expr-27.2.3 { CAST(NULL AS blob) } null {}
do_expr_test e_expr-27.2.4 { CAST(NULL AS number) } null {}
# EVIDENCE-OF: R-29283-15561 Otherwise, the storage class of the result
# is determined by applying the rules for determining column affinity to
# the type-name.
#
# The R-29283-15561 requirement above is demonstrated by all of the
# subsequent e_expr-26 tests.
#
# EVIDENCE-OF: R-43522-35548 Casting a value to a type-name with no
# affinity causes the value to be converted into a BLOB.
#
do_expr_test e_expr-27.3.1 { CAST('abc' AS blob) } blob abc
do_expr_test e_expr-27.3.2 { CAST('def' AS shobblob_x) } blob def
do_expr_test e_expr-27.3.3 { CAST('ghi' AS abbLOb10) } blob ghi
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