diff options
Diffstat (limited to 'test/alterdropcol.test')
| -rw-r--r-- | test/alterdropcol.test | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/test/alterdropcol.test b/test/alterdropcol.test new file mode 100644 index 0000000..8674e98 --- /dev/null +++ b/test/alterdropcol.test @@ -0,0 +1,339 @@ +# 2021 February 16 +# +# 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. +# +#************************************************************************* +# + +set testdir [file dirname $argv0] +source $testdir/tester.tcl +set testprefix alterdropcol + +# If SQLITE_OMIT_ALTERTABLE is defined, omit this file. +ifcapable !altertable { + finish_test + return +} + +do_execsql_test 1.0 { + CREATE TABLE t1(a, b, c); + CREATE VIEW v1 AS SELECT * FROM t1; + + CREATE TABLE t2(x INTEGER PRIMARY KEY, y, z UNIQUE); + CREATE INDEX t2y ON t2(y); + + CREATE TABLE t3(q, r, s); + CREATE INDEX t3rs ON t3(r+s); +} + +do_catchsql_test 1.1 { + ALTER TABLE nosuch DROP COLUMN z; +} {1 {no such table: nosuch}} + +do_catchsql_test 1.2 { + ALTER TABLE v1 DROP COLUMN c; +} {1 {cannot drop column from view "v1"}} + +ifcapable fts5 { + do_execsql_test 1.3.1 { + CREATE VIRTUAL TABLE ft1 USING fts5(one, two); + } + do_catchsql_test 1.3.2 { + ALTER TABLE ft1 DROP COLUMN two; + } {1 {cannot drop column from virtual table "ft1"}} +} + +do_catchsql_test 1.4 { + ALTER TABLE sqlite_schema DROP COLUMN sql; +} {1 {table sqlite_master may not be altered}} + +do_catchsql_test 1.5 { + ALTER TABLE t1 DROP COLUMN d; +} {1 {no such column: "d"}} + +do_execsql_test 1.6.1 { + ALTER TABLE t1 DROP COLUMN b; +} +do_execsql_test 1.6.2 { + SELECT sql FROM sqlite_schema WHERE name = 't1' +} {{CREATE TABLE t1(a, c)}} + +do_execsql_test 1.7.1 { + ALTER TABLE t1 DROP COLUMN c; +} +do_execsql_test 1.7.2 { + SELECT sql FROM sqlite_schema WHERE name = 't1' +} {{CREATE TABLE t1(a)}} + +do_catchsql_test 1.7.3 { + ALTER TABLE t1 DROP COLUMN a; +} {1 {cannot drop column "a": no other columns exist}} + + +do_catchsql_test 1.8 { + ALTER TABLE t2 DROP COLUMN z +} {1 {cannot drop UNIQUE column: "z"}} + +do_catchsql_test 1.9 { + ALTER TABLE t2 DROP COLUMN x +} {1 {cannot drop PRIMARY KEY column: "x"}} + +do_catchsql_test 1.10 { + ALTER TABLE t2 DROP COLUMN y +} {1 {error in index t2y after drop column: no such column: y}} + +do_catchsql_test 1.11 { + ALTER TABLE t3 DROP COLUMN s +} {1 {error in index t3rs after drop column: no such column: s}} + +#------------------------------------------------------------------------- + +foreach {tn wo} { + 1 {} + 2 {WITHOUT ROWID} +} { eval [string map [list %TN% $tn %WO% $wo] { + + reset_db + do_execsql_test 2.%TN%.0 { + CREATE TABLE t1(x, y INTEGER PRIMARY KEY, z) %WO% ; + INSERT INTO t1 VALUES(1, 2, 3); + INSERT INTO t1 VALUES(4, 5, 6); + INSERT INTO t1 VALUES(7, 8, 9); + } + + do_execsql_test 2.%TN%.1 { + ALTER TABLE t1 DROP COLUMN x; + SELECT * FROM t1; + } { + 2 3 5 6 8 9 + } + do_execsql_test 2.%TN%.2 { + ALTER TABLE t1 DROP COLUMN z; + SELECT * FROM t1; + } { + 2 5 8 + } +}]} + +#------------------------------------------------------------------------- +reset_db + +do_execsql_test 3.0 { + CREATE TABLE t12(a, b, c, CHECK(c>10)); + CREATE TABLE t13(a, b, c CHECK(c>10)); +} +do_catchsql_test 3.1 { + ALTER TABLE t12 DROP COLUMN c; +} {1 {error in table t12 after drop column: no such column: c}} + +do_catchsql_test 3.2 { + ALTER TABLE t13 DROP COLUMN c; +} {0 {}} + +#------------------------------------------------------------------------- +# Test that generated columns can be dropped. And that other columns from +# tables that contain generated columns can be dropped. +# +foreach {tn wo vs} { + 1 "" "" + 2 "" VIRTUAL + 3 "" STORED + 4 "WITHOUT ROWID" STORED + 5 "WITHOUT ROWID" VIRTUAL +} { + reset_db + + do_execsql_test 4.$tn.0 " + CREATE TABLE 'my table'(a, b PRIMARY KEY, c AS (a+b) $vs, d) $wo + " + do_execsql_test 4.$tn.1 { + INSERT INTO "my table"(a, b, d) VALUES(1, 2, 'hello'); + INSERT INTO "my table"(a, b, d) VALUES(3, 4, 'world'); + + SELECT * FROM "my table" + } { + 1 2 3 hello + 3 4 7 world + } + + do_execsql_test 4.$tn.2 { + ALTER TABLE "my table" DROP COLUMN c; + } + do_execsql_test 4.$tn.3 { + SELECT * FROM "my table" + } { + 1 2 hello + 3 4 world + } + + do_execsql_test 4.$tn.4 " + CREATE TABLE x1(a, b, c PRIMARY KEY, d AS (b+c) $vs, e) $wo + " + do_execsql_test 4.$tn.5 { + INSERT INTO x1(a, b, c, e) VALUES(1, 2, 3, 4); + INSERT INTO x1(a, b, c, e) VALUES(5, 6, 7, 8); + INSERT INTO x1(a, b, c, e) VALUES(9, 10, 11, 12); + SELECT * FROM x1; + } { + 1 2 3 5 4 + 5 6 7 13 8 + 9 10 11 21 12 + } + + do_execsql_test 4.$tn.6 { + ALTER TABLE x1 DROP COLUMN a + } + do_execsql_test 4.$tn.7 { + SELECT * FROM x1 + } { + 2 3 5 4 + 6 7 13 8 + 10 11 21 12 + } + do_execsql_test 4.$tn.8 { + ALTER TABLE x1 DROP COLUMN e + } + do_execsql_test 4.$tn.9 { + SELECT * FROM x1 + } { + 2 3 5 + 6 7 13 + 10 11 21 + } +} + +#------------------------------------------------------------------------- +reset_db +do_execsql_test 5.0 { + CREATE TABLE p1(a PRIMARY KEY, b UNIQUE); + CREATE TABLE c1(x, y, z REFERENCES p1(c)); + CREATE TABLE c2(x, y, z, w REFERENCES p1(b)); +} +do_execsql_test 5.1 { + ALTER TABLE c1 DROP COLUMN z; + ALTER TABLE c2 DROP COLUMN z; + SELECT sql FROM sqlite_schema WHERE name IN ('c1', 'c2'); +} { + {CREATE TABLE c1(x, y)} + {CREATE TABLE c2(x, y, w REFERENCES p1(b))} +} + +do_execsql_test 5.2.1 { + CREATE VIEW v1 AS SELECT d, e FROM p1 +} +do_catchsql_test 5.2.2 { + ALTER TABLE c1 DROP COLUMN x +} {1 {error in view v1: no such column: d}} +do_execsql_test 5.3.1 { + DROP VIEW v1; + CREATE VIEW v1 AS SELECT x, y FROM c1; +} +do_catchsql_test 5.3.2 { + ALTER TABLE c1 DROP COLUMN x +} {1 {error in view v1 after drop column: no such column: x}} + +do_execsql_test 5.4.1 { + CREATE TRIGGER tr AFTER INSERT ON c1 BEGIN + INSERT INTO p1 VALUES(new.y, new.xyz); + END; +} +do_catchsql_test 5.4.2 { + ALTER TABLE c1 DROP COLUMN y +} {1 {error in trigger tr: no such column: new.xyz}} +do_execsql_test 5.5.1 { + DROP TRIGGER tr; + CREATE TRIGGER tr AFTER INSERT ON c1 BEGIN + INSERT INTO p1 VALUES(new.y, new.z); + END; +} +do_catchsql_test 5.5.2 { + ALTER TABLE c1 DROP COLUMN y +} {1 {error in trigger tr: no such column: new.z}} + +# 2021-03-06 dbsqlfuzz crash-419aa525df93db6e463772c686ac6da27b46da9e +reset_db +do_catchsql_test 6.0 { + CREATE TABLE t1(a,b,c); + CREATE TABLE t2(x,y,z); + PRAGMA writable_schema=ON; + UPDATE sqlite_schema SET sql='CREATE INDEX t1b ON t1(b)' WHERE name='t2'; + PRAGMA writable_schema=OFF; + ALTER TABLE t2 DROP COLUMN z; +} {1 {database disk image is malformed}} +reset_db +do_catchsql_test 6.1 { + CREATE TABLE t1(a,b,c); + CREATE TABLE t2(x,y,z); + PRAGMA writable_schema=ON; + UPDATE sqlite_schema SET sql='CREATE VIEW t2(x,y,z) AS SELECT b,a,c FROM t1' + WHERE name='t2'; + PRAGMA writable_schema=OFF; + ALTER TABLE t2 DROP COLUMN z; +} {1 {database disk image is malformed}} + +# 2021-04-06 dbsqlfuzz crash-331c5c29bb76257b198f1318eef3288f9624c8ce +reset_db +do_execsql_test 7.0 { + CREATE TABLE t1(a, b, c, PRIMARY KEY(a COLLATE nocase, a)) WITHOUT ROWID; + INSERT INTO t1 VALUES(1, 2, 3); + INSERT INTO t1 VALUES(4, 5, 6); +} +do_execsql_test 7.1 { + ALTER TABLE t1 DROP COLUMN c; +} +do_execsql_test 7.2 { + SELECT sql FROM sqlite_schema; +} {{CREATE TABLE t1(a, b, PRIMARY KEY(a COLLATE nocase, a)) WITHOUT ROWID}} +do_execsql_test 7.3 { + SELECT * FROM t1; +} {1 2 4 5} + +reset_db +do_execsql_test 8.0 { + CREATE TABLE t1(a INTEGER PRIMARY KEY, b); + PRAGMA writable_schema = 1; + UPDATE sqlite_schema + SET sql = 'CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT, b)' +} +db close +sqlite3 db test.db +do_execsql_test 8.1 { + ALTER TABLE t1 DROP COLUMN b; +} +do_execsql_test 8.2 { + SELECT sql FROM sqlite_schema; +} {{CREATE TABLE t1(a INTEGER PRIMARY KEY AUTOINCREMENT)}} + +#------------------------------------------------------------------------- + +foreach {tn wo} { + 1 {} + 2 {WITHOUT ROWID} +} { + reset_db + do_execsql_test 9.$tn.0 " + CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c) $wo; + " + do_execsql_test 9.$tn.1 { + WITH s(i) AS ( + SELECT 1 UNION ALL SELECT i+1 FROM s WHERE i<50000 + ) + INSERT INTO t1(a, b, c) SELECT i, 123, 456 FROM s; + } + do_execsql_test 9.$tn.2 { + ALTER TABLE t1 DROP COLUMN b; + } + + do_execsql_test 9.$tn.3 { + SELECT count(*), c FROM t1 GROUP BY c; + } {50000 456} +} + + + +finish_test |