583 lines
16 KiB
Plaintext
583 lines
16 KiB
Plaintext
# 2001 September 15
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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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# This file implements regression tests for SQLite library. The
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# focus of this file is testing the SELECT statement.
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#
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# $Id: autovacuum.test,v 1.23 2006/06/20 11:01:09 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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# If this build of the library does not support auto-vacuum, omit this
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# whole file.
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ifcapable {!autovacuum || !pragma} {
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finish_test
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return
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}
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# Return a string $len characters long. The returned string is $char repeated
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# over and over. For example, [make_str abc 8] returns "abcabcab".
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proc make_str {char len} {
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set str [string repeat $char. $len]
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return [string range $str 0 [expr $len-1]]
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}
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# Return the number of pages in the file test.db by looking at the file system.
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proc file_pages {} {
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return [expr [file size test.db] / 1024]
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}
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#-------------------------------------------------------------------------
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# Test cases autovacuum-1.* work as follows:
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#
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# 1. A table with a single indexed field is created.
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# 2. Approximately 20 rows are inserted into the table. Each row is long
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# enough such that it uses at least 2 overflow pages for both the table
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# and index entry.
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# 3. The rows are deleted in a psuedo-random order. Sometimes only one row
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# is deleted per transaction, sometimes more than one.
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# 4. After each transaction the table data is checked to ensure it is correct
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# and a "PRAGMA integrity_check" is executed.
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# 5. Once all the rows are deleted the file is checked to make sure it
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# consists of exactly 4 pages.
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#
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# Steps 2-5 are repeated for a few different psuedo-random delete patterns
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# (defined by the $delete_orders list).
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set delete_orders [list]
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lappend delete_orders {1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20}
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lappend delete_orders {20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1}
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lappend delete_orders {8 18 2 4 14 11 13 3 10 7 9 5 12 17 19 15 20 6 16 1}
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lappend delete_orders {10 3 11 17 19 20 7 4 13 6 1 14 16 12 9 18 8 15 5 2}
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lappend delete_orders {{1 2 3 4 5 6 7 8 9 10} {11 12 13 14 15 16 17 18 19 20}}
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lappend delete_orders {{19 8 17 15} {16 11 9 14} {18 5 3 1} {13 20 7 2} {6 12}}
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# The length of each table entry.
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# set ENTRY_LEN 3500
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set ENTRY_LEN 3500
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do_test autovacuum-1.1 {
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execsql {
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PRAGMA auto_vacuum = 1;
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CREATE TABLE av1(a);
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CREATE INDEX av1_idx ON av1(a);
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}
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} {}
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set tn 0
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foreach delete_order $delete_orders {
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incr tn
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# Set up the table.
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set ::tbl_data [list]
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foreach i [lsort -integer [eval concat $delete_order]] {
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execsql "INSERT INTO av1 (oid, a) VALUES($i, '[make_str $i $ENTRY_LEN]')"
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lappend ::tbl_data [make_str $i $ENTRY_LEN]
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}
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# Make sure the integrity check passes with the initial data.
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ifcapable {integrityck} {
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do_test autovacuum-1.$tn.1 {
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execsql {
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pragma integrity_check
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}
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} {ok}
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}
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foreach delete $delete_order {
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# Delete one set of rows from the table.
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do_test autovacuum-1.$tn.($delete).1 {
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execsql "
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DELETE FROM av1 WHERE oid = [join $delete "OR oid = "]
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"
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} {}
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# Do the integrity check.
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ifcapable {integrityck} {
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do_test autovacuum-1.$tn.($delete).2 {
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execsql {
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pragma integrity_check
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}
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} {ok}
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}
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# Ensure the data remaining in the table is what was expected.
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foreach d $delete {
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set idx [lsearch $::tbl_data [make_str $d $ENTRY_LEN]]
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set ::tbl_data [lreplace $::tbl_data $idx $idx]
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}
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do_test autovacuum-1.$tn.($delete).3 {
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execsql {
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select a from av1
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}
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} $::tbl_data
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}
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# All rows have been deleted. Ensure the file has shrunk to 4 pages.
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do_test autovacuum-1.$tn.3 {
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file_pages
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} {4}
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}
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#---------------------------------------------------------------------------
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# Tests cases autovacuum-2.* test that root pages are allocated
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# and deallocated correctly at the start of the file. Operation is roughly as
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# follows:
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#
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# autovacuum-2.1.*: Drop the tables that currently exist in the database.
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# autovacuum-2.2.*: Create some tables. Ensure that data pages can be
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# moved correctly to make space for new root-pages.
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# autovacuum-2.3.*: Drop one of the tables just created (not the last one),
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# and check that one of the other tables is moved to
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# the free root-page location.
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# autovacuum-2.4.*: Check that a table can be created correctly when the
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# root-page it requires is on the free-list.
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# autovacuum-2.5.*: Check that a table with indices can be dropped. This
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# is slightly tricky because dropping one of the
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# indices/table btrees could move the root-page of another.
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# The code-generation layer of SQLite overcomes this problem
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# by dropping the btrees in descending order of root-pages.
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# This test ensures that this actually happens.
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#
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do_test autovacuum-2.1.1 {
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execsql {
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DROP TABLE av1;
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}
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} {}
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do_test autovacuum-2.1.2 {
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file_pages
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} {1}
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# Create a table and put some data in it.
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do_test autovacuum-2.2.1 {
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execsql {
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CREATE TABLE av1(x);
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SELECT rootpage FROM sqlite_master ORDER BY rootpage;
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}
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} {3}
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do_test autovacuum-2.2.2 {
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execsql "
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INSERT INTO av1 VALUES('[make_str abc 3000]');
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INSERT INTO av1 VALUES('[make_str def 3000]');
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INSERT INTO av1 VALUES('[make_str ghi 3000]');
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INSERT INTO av1 VALUES('[make_str jkl 3000]');
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"
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set ::av1_data [db eval {select * from av1}]
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file_pages
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} {15}
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# Create another table. Check it is located immediately after the first.
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# This test case moves the second page in an over-flow chain.
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do_test autovacuum-2.2.3 {
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execsql {
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CREATE TABLE av2(x);
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SELECT rootpage FROM sqlite_master ORDER BY rootpage;
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}
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} {3 4}
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do_test autovacuum-2.2.4 {
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file_pages
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} {16}
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# Create another table. Check it is located immediately after the second.
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# This test case moves the first page in an over-flow chain.
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do_test autovacuum-2.2.5 {
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execsql {
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CREATE TABLE av3(x);
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SELECT rootpage FROM sqlite_master ORDER BY rootpage;
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}
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} {3 4 5}
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do_test autovacuum-2.2.6 {
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file_pages
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} {17}
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# Create another table. Check it is located immediately after the second.
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# This test case moves a btree leaf page.
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do_test autovacuum-2.2.7 {
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execsql {
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CREATE TABLE av4(x);
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SELECT rootpage FROM sqlite_master ORDER BY rootpage;
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}
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} {3 4 5 6}
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do_test autovacuum-2.2.8 {
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file_pages
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} {18}
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do_test autovacuum-2.2.9 {
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execsql {
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select * from av1
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}
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} $av1_data
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do_test autovacuum-2.3.1 {
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execsql {
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INSERT INTO av2 SELECT 'av1' || x FROM av1;
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INSERT INTO av3 SELECT 'av2' || x FROM av1;
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INSERT INTO av4 SELECT 'av3' || x FROM av1;
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}
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set ::av2_data [execsql {select x from av2}]
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set ::av3_data [execsql {select x from av3}]
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set ::av4_data [execsql {select x from av4}]
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file_pages
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} {54}
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do_test autovacuum-2.3.2 {
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execsql {
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DROP TABLE av2;
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SELECT rootpage FROM sqlite_master ORDER BY rootpage;
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}
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} {3 4 5}
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do_test autovacuum-2.3.3 {
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file_pages
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} {41}
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do_test autovacuum-2.3.4 {
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execsql {
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SELECT x FROM av3;
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}
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} $::av3_data
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do_test autovacuum-2.3.5 {
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execsql {
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SELECT x FROM av4;
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}
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} $::av4_data
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# Drop all the tables in the file. This puts all pages except the first 2
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# (the sqlite_master root-page and the first pointer map page) on the
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# free-list.
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do_test autovacuum-2.4.1 {
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execsql {
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DROP TABLE av1;
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DROP TABLE av3;
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BEGIN;
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DROP TABLE av4;
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}
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file_pages
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} {15}
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do_test autovacuum-2.4.2 {
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for {set i 3} {$i<=10} {incr i} {
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execsql "CREATE TABLE av$i (x)"
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}
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file_pages
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} {15}
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do_test autovacuum-2.4.3 {
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execsql {
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SELECT rootpage FROM sqlite_master ORDER by rootpage
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}
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} {3 4 5 6 7 8 9 10}
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# Right now there are 5 free pages in the database. Consume and then free
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# a 520 pages. Then create 520 tables. This ensures that at least some of the
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# desired root-pages reside on the second free-list trunk page, and that the
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# trunk itself is required at some point.
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do_test autovacuum-2.4.4 {
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execsql "
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INSERT INTO av3 VALUES ('[make_str abcde [expr 1020*520 + 500]]');
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DELETE FROM av3;
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"
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} {}
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set root_page_list [list]
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set pending_byte_page [expr ($::sqlite_pending_byte / 1024) + 1]
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for {set i 3} {$i<=532} {incr i} {
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# 207 and 412 are pointer-map pages.
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if { $i!=207 && $i!=412 && $i != $pending_byte_page} {
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lappend root_page_list $i
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}
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}
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if {$i >= $pending_byte_page} {
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lappend root_page_list $i
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}
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do_test autovacuum-2.4.5 {
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for {set i 11} {$i<=530} {incr i} {
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execsql "CREATE TABLE av$i (x)"
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}
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execsql {
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SELECT rootpage FROM sqlite_master ORDER by rootpage
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}
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} $root_page_list
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# Just for fun, delete all those tables and see if the database is 1 page.
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do_test autovacuum-2.4.6 {
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execsql COMMIT;
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file_pages
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} [expr 561 + (($i >= $pending_byte_page)?1:0)]
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integrity_check autovacuum-2.4.6
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do_test autovacuum-2.4.7 {
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execsql BEGIN
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for {set i 3} {$i<=530} {incr i} {
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execsql "DROP TABLE av$i"
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}
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execsql COMMIT
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file_pages
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} 1
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# Create some tables with indices to drop.
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do_test autovacuum-2.5.1 {
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execsql {
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CREATE TABLE av1(a PRIMARY KEY, b, c);
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INSERT INTO av1 VALUES('av1 a', 'av1 b', 'av1 c');
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CREATE TABLE av2(a PRIMARY KEY, b, c);
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CREATE INDEX av2_i1 ON av2(b);
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CREATE INDEX av2_i2 ON av2(c);
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INSERT INTO av2 VALUES('av2 a', 'av2 b', 'av2 c');
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CREATE TABLE av3(a PRIMARY KEY, b, c);
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CREATE INDEX av3_i1 ON av3(b);
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INSERT INTO av3 VALUES('av3 a', 'av3 b', 'av3 c');
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CREATE TABLE av4(a, b, c);
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CREATE INDEX av4_i1 ON av4(a);
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CREATE INDEX av4_i2 ON av4(b);
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CREATE INDEX av4_i3 ON av4(c);
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CREATE INDEX av4_i4 ON av4(a, b, c);
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INSERT INTO av4 VALUES('av4 a', 'av4 b', 'av4 c');
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}
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} {}
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do_test autovacuum-2.5.2 {
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execsql {
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SELECT name, rootpage FROM sqlite_master;
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}
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} [list av1 3 sqlite_autoindex_av1_1 4 \
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av2 5 sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
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av3 9 sqlite_autoindex_av3_1 10 av3_i1 11 \
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av4 12 av4_i1 13 av4_i2 14 av4_i3 15 av4_i4 16 \
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]
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# The following 4 tests are SELECT queries that use the indices created.
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# If the root-pages in the internal schema are not updated correctly when
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# a table or indice is moved, these queries will fail. They are repeated
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# after each table is dropped (i.e. as test cases 2.5.*.[1..4]).
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do_test autovacuum-2.5.2.1 {
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execsql {
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SELECT * FROM av1 WHERE a = 'av1 a';
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}
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} {{av1 a} {av1 b} {av1 c}}
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do_test autovacuum-2.5.2.2 {
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execsql {
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SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
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}
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} {{av2 a} {av2 b} {av2 c}}
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do_test autovacuum-2.5.2.3 {
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execsql {
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SELECT * FROM av3 WHERE a = 'av3 a' AND b = 'av3 b';
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}
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} {{av3 a} {av3 b} {av3 c}}
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do_test autovacuum-2.5.2.4 {
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execsql {
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SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
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}
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} {{av4 a} {av4 b} {av4 c}}
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# Drop table av3. Indices av4_i2, av4_i3 and av4_i4 are moved to fill the two
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# root pages vacated. The operation proceeds as:
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# Step 1: Delete av3_i1 (root-page 11). Move root-page of av4_i4 to page 11.
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# Step 2: Delete av3 (root-page 10). Move root-page of av4_i3 to page 10.
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# Step 3: Delete sqlite_autoindex_av1_3 (root-page 9). Move av4_i2 to page 9.
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do_test autovacuum-2.5.3 {
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execsql {
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DROP TABLE av3;
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SELECT name, rootpage FROM sqlite_master;
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}
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} [list av1 3 sqlite_autoindex_av1_1 4 \
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av2 5 sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
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av4 12 av4_i1 13 av4_i2 9 av4_i3 10 av4_i4 11 \
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]
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do_test autovacuum-2.5.3.1 {
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execsql {
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SELECT * FROM av1 WHERE a = 'av1 a';
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}
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} {{av1 a} {av1 b} {av1 c}}
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do_test autovacuum-2.5.3.2 {
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execsql {
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SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
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}
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} {{av2 a} {av2 b} {av2 c}}
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do_test autovacuum-2.5.3.3 {
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execsql {
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SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
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}
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} {{av4 a} {av4 b} {av4 c}}
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# Drop table av1:
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# Step 1: Delete av1 (root page 4). Root-page of av4_i1 fills the gap.
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# Step 2: Delete sqlite_autoindex_av1_1 (root page 3). Move av4 to the gap.
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do_test autovacuum-2.5.4 {
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execsql {
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DROP TABLE av1;
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SELECT name, rootpage FROM sqlite_master;
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}
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} [list av2 5 sqlite_autoindex_av2_1 6 av2_i1 7 av2_i2 8 \
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av4 3 av4_i1 4 av4_i2 9 av4_i3 10 av4_i4 11 \
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]
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do_test autovacuum-2.5.4.2 {
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execsql {
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SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
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}
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} {{av2 a} {av2 b} {av2 c}}
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do_test autovacuum-2.5.4.4 {
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execsql {
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SELECT * FROM av4 WHERE a = 'av4 a' AND b = 'av4 b' AND c = 'av4 c';
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}
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} {{av4 a} {av4 b} {av4 c}}
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# Drop table av4:
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# Step 1: Delete av4_i4.
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# Step 2: Delete av4_i3.
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# Step 3: Delete av4_i2.
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# Step 4: Delete av4_i1. av2_i2 replaces it.
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# Step 5: Delete av4. av2_i1 replaces it.
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do_test autovacuum-2.5.5 {
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execsql {
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DROP TABLE av4;
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SELECT name, rootpage FROM sqlite_master;
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}
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} [list av2 5 sqlite_autoindex_av2_1 6 av2_i1 3 av2_i2 4]
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do_test autovacuum-2.5.5.2 {
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execsql {
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SELECT * FROM av2 WHERE a = 'av2 a' AND b = 'av2 b' AND c = 'av2 c'
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}
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} {{av2 a} {av2 b} {av2 c}}
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#--------------------------------------------------------------------------
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# Test cases autovacuum-3.* test the operation of the "PRAGMA auto_vacuum"
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# command.
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#
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do_test autovacuum-3.1 {
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execsql {
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PRAGMA auto_vacuum;
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}
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} {1}
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do_test autovacuum-3.2 {
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db close
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sqlite3 db test.db
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execsql {
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PRAGMA auto_vacuum;
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}
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} {1}
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do_test autovacuum-3.3 {
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execsql {
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PRAGMA auto_vacuum = 0;
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PRAGMA auto_vacuum;
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}
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} {1}
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do_test autovacuum-3.4 {
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db close
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file delete -force test.db
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sqlite3 db test.db
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execsql {
|
|
PRAGMA auto_vacuum;
|
|
}
|
|
} $AUTOVACUUM
|
|
do_test autovacuum-3.5 {
|
|
execsql {
|
|
CREATE TABLE av1(x);
|
|
PRAGMA auto_vacuum;
|
|
}
|
|
} $AUTOVACUUM
|
|
do_test autovacuum-3.6 {
|
|
execsql {
|
|
PRAGMA auto_vacuum = 1;
|
|
PRAGMA auto_vacuum;
|
|
}
|
|
} $AUTOVACUUM
|
|
do_test autovacuum-3.7 {
|
|
execsql {
|
|
DROP TABLE av1;
|
|
}
|
|
file_pages
|
|
} [expr $AUTOVACUUM?1:2]
|
|
|
|
#-----------------------------------------------------------------------
|
|
# Test that if a statement transaction around a CREATE INDEX statement is
|
|
# rolled back no corruption occurs.
|
|
#
|
|
do_test autovacuum-4.1 {
|
|
execsql {
|
|
CREATE TABLE av1(a, b);
|
|
BEGIN;
|
|
}
|
|
for {set i 0} {$i<100} {incr i} {
|
|
execsql "INSERT INTO av1 VALUES($i, '[string repeat X 200]');"
|
|
}
|
|
execsql "INSERT INTO av1 VALUES(99, '[string repeat X 200]');"
|
|
execsql {
|
|
SELECT sum(a) FROM av1;
|
|
}
|
|
} {5049}
|
|
do_test autovacuum-4.2 {
|
|
catchsql {
|
|
CREATE UNIQUE INDEX av1_i ON av1(a);
|
|
}
|
|
} {1 {indexed columns are not unique}}
|
|
do_test autovacuum-4.3 {
|
|
execsql {
|
|
SELECT sum(a) FROM av1;
|
|
}
|
|
} {5049}
|
|
do_test autovacuum-4.4 {
|
|
execsql {
|
|
COMMIT;
|
|
}
|
|
} {}
|
|
|
|
ifcapable integrityck {
|
|
|
|
# Ticket #1727
|
|
do_test autovacuum-5.1 {
|
|
db close
|
|
sqlite3 db :memory:
|
|
db eval {
|
|
PRAGMA auto_vacuum=1;
|
|
CREATE TABLE t1(a);
|
|
CREATE TABLE t2(a);
|
|
DROP TABLE t1;
|
|
PRAGMA integrity_check;
|
|
}
|
|
} ok
|
|
|
|
}
|
|
|
|
# Ticket #1728.
|
|
#
|
|
# In autovacuum mode, when tables or indices are deleted, the rootpage
|
|
# values in the symbol table have to be updated. There was a bug in this
|
|
# logic so that if an index/table was moved twice, the second move might
|
|
# not occur. This would leave the internal symbol table in an inconsistent
|
|
# state causing subsequent statements to fail.
|
|
#
|
|
# The problem is difficult to reproduce. The sequence of statements in
|
|
# the following test are carefully designed make it occur and thus to
|
|
# verify that this very obscure bug has been resolved.
|
|
#
|
|
ifcapable integrityck&&memorydb {
|
|
|
|
do_test autovacuum-6.1 {
|
|
db close
|
|
sqlite3 db :memory:
|
|
db eval {
|
|
PRAGMA auto_vacuum=1;
|
|
CREATE TABLE t1(a, b);
|
|
CREATE INDEX i1 ON t1(a);
|
|
CREATE TABLE t2(a);
|
|
CREATE INDEX i2 ON t2(a);
|
|
CREATE TABLE t3(a);
|
|
CREATE INDEX i3 ON t2(a);
|
|
CREATE INDEX x ON t1(b);
|
|
DROP TABLE t3;
|
|
PRAGMA integrity_check;
|
|
DROP TABLE t2;
|
|
PRAGMA integrity_check;
|
|
DROP TABLE t1;
|
|
PRAGMA integrity_check;
|
|
}
|
|
} {ok ok ok}
|
|
|
|
}
|
|
|
|
finish_test
|