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