drh
2fc865c115
location of the payload within the database for the record that contains column X. location(X) returns NULL if X is not an ordinary table column or if SQLite cannot figure out the location because it is using a covering index. FossilOrigin-Name: 51be9558164301c5dd4df23ab8b3e67de0b522f8d36f79f3d84d45d3dc2a83a4
37 lines
1.2 KiB
Plaintext
37 lines
1.2 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 location() function.
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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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do_execsql_test func6-100 {
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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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}
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do_execsql_test func6-110 {
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SELECT a, typeof(location(a)) FROM t1 ORDER BY rowid LIMIT 2;
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} {abc001 integer abc002 integer}
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do_execsql_test func6-120 {
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SELECT a, typeof(location(+a)) FROM t1 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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CREATE INDEX t1a ON t1(a);
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SELECT a, typeof(location(a)) FROM t1 ORDER BY a LIMIT 2;
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} {abc001 null abc002 null}
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do_execsql_test func6-140 {
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SELECT a, typeof(location(a)) FROM t1 NOT INDEXED ORDER BY a LIMIT 2;
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} {abc001 integer abc002 integer}
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finish_test
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