060b7fa974
sqlite3AtoF() on both boundary keys to determine if the optimization can be used when the LHS is something that might not have TEXT affinity. Ticket [ce8717f0885af975]. See also [c94369cae9b561b1], [b043a54c3de54b28], [fd76310a5e843e07], and [158290c0abafde67]. FossilOrigin-Name: b4a9e09e60213ccff925d09f0b6e549e2a3e3862856c710f108779e2867dec76
67 lines
1.6 KiB
Plaintext
67 lines
1.6 KiB
Plaintext
# 2009 December 8
|
|
#
|
|
# The author disclaims copyright to this source code. In place of
|
|
# a legal notice, here is a blessing:
|
|
#
|
|
# May you do good and not evil.
|
|
# May you find forgiveness for yourself and forgive others.
|
|
# May you share freely, never taking more than you give.
|
|
#
|
|
#***********************************************************************
|
|
# This file implements regression tests for SQLite library.
|
|
#
|
|
# Verify that we can create zero-length tables.
|
|
#
|
|
|
|
set testdir [file dirname $argv0]
|
|
source $testdir/tester.tcl
|
|
|
|
do_test tkt-78e04-1.0 {
|
|
execsql {
|
|
CREATE TABLE ""("" UNIQUE, x CHAR(100));
|
|
CREATE TABLE t2(x);
|
|
INSERT INTO ""("") VALUES(1);
|
|
INSERT INTO t2 VALUES(2);
|
|
SELECT * FROM "", t2;
|
|
}
|
|
} {1 {} 2}
|
|
do_test tkt-78e04-1.1 {
|
|
catchsql {
|
|
INSERT INTO ""("") VALUES(1);
|
|
}
|
|
} {1 {UNIQUE constraint failed: .}}
|
|
do_test tkt-78e04-1.2 {
|
|
execsql {
|
|
PRAGMA table_info("");
|
|
}
|
|
} {0 {} {} 0 {} 0 1 x CHAR(100) 0 {} 0}
|
|
do_test tkt-78e04-1.3 {
|
|
execsql {
|
|
CREATE INDEX i1 ON ""("" COLLATE nocase);
|
|
}
|
|
} {}
|
|
do_test tkt-78e04-1.4 {
|
|
db eval {EXPLAIN QUERY PLAN SELECT "" FROM "" WHERE "" LIKE '1e5%';}
|
|
} {/*SCAN TABLE USING COVERING INDEX i1*/}
|
|
do_test tkt-78e04-1.5 {
|
|
execsql {
|
|
DROP TABLE "";
|
|
SELECT name FROM sqlite_master;
|
|
}
|
|
} {t2}
|
|
|
|
do_test tkt-78e04-2.1 {
|
|
execsql {
|
|
CREATE INDEX "" ON t2(x);
|
|
EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE x=5;
|
|
}
|
|
} {/*SEARCH TABLE t2 USING COVERING INDEX (x=?)*/}
|
|
do_test tkt-78e04-2.2 {
|
|
execsql {
|
|
DROP INDEX "";
|
|
EXPLAIN QUERY PLAN SELECT * FROM t2 WHERE x=2;
|
|
}
|
|
} {/*SCAN TABLE t2*/}
|
|
|
|
finish_test
|