mirror of https://github.com/sqlite/sqlite
87 lines
2.5 KiB
Plaintext
87 lines
2.5 KiB
Plaintext
# 2017-12-16
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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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# Test cases for the sqlite_offset() function.
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#
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# Some of the tests in this file depend on the exact placement of content
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# within b-tree pages. Such placement is at the implementations discretion,
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# and so it is possible for results to change from one release to the next.
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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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ifcapable !offset_sql_func {
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finish_test
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return
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}
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do_execsql_test func6-100 {
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PRAGMA page_size=4096;
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PRAGMA auto_vacuum=NONE;
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CREATE TABLE t1(a,b,c,d);
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WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<100)
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INSERT INTO t1(a,b,c,d) SELECT printf('abc%03x',x), x, 1000-x, NULL FROM c;
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CREATE INDEX t1a ON t1(a);
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CREATE INDEX t1bc ON t1(b,c);
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CREATE TABLE t2(x TEXT PRIMARY KEY, y) WITHOUT ROWID;
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INSERT INTO t2(x,y) SELECT a, b FROM t1;
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}
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do_execsql_test func6-110 {
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SELECT a, sqlite_offset(d)/4096 + 1,
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sqlite_offset(d)%4096 FROM t1
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ORDER BY rowid LIMIT 2;
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} {abc001 2 4084 abc002 2 4069}
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do_execsql_test func6-120 {
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SELECT a, typeof(sqlite_offset(+a)) FROM t1
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ORDER BY rowid LIMIT 2;
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} {abc001 null abc002 null}
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do_execsql_test func6-130 {
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SELECT a, sqlite_offset(a)/4096+1,
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sqlite_offset(a)%4096
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FROM t1
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ORDER BY a LIMIT 2;
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} {abc001 3 4087 abc002 3 4076}
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do_execsql_test func6-140 {
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SELECT a, sqlite_offset(d)/4096+1,
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sqlite_offset(d)%4096
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FROM t1
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ORDER BY a LIMIT 2;
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} {abc001 2 4084 abc002 2 4069}
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do_execsql_test func6-150 {
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SELECT a,
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sqlite_offset(a)/4096+1,
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sqlite_offset(a)%4096,
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sqlite_offset(d)/4096+1,
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sqlite_offset(d)%4096
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FROM t1
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ORDER BY a LIMIT 2;
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} {abc001 3 4087 2 4084 abc002 3 4076 2 4069}
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do_execsql_test func6-160 {
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SELECT b,
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sqlite_offset(b)/4096+1,
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sqlite_offset(b)%4096,
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sqlite_offset(c)/4096+1,
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sqlite_offset(c)%4096,
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sqlite_offset(d)/4096+1,
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sqlite_offset(d)%4096
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FROM t1
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ORDER BY b LIMIT 2;
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} {1 4 4090 4 4090 2 4084 2 4 4081 4 4081 2 4069}
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do_execsql_test func6-200 {
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SELECT y, sqlite_offset(y)/4096+1,
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sqlite_offset(y)%4096
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FROM t2
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ORDER BY x LIMIT 2;
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} {1 5 4087 2 5 4076}
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finish_test
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