12abf408ff
vector expression once. Add support for vector comparisons in the CASE operator. FossilOrigin-Name: 07e69f43a294d35b5145a2b0242ee42d50adab14
60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
# 2016-08-22
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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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# Use of row values in CASE statements.
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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 rowvalue8
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do_execsql_test 1.1 {
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CREATE TABLE t1(a INTEGER PRIMARY KEY,b,c,d);
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INSERT INTO t1(a,b,c,d) VALUES
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(1,1,2,3),
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(2,2,3,4),
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(3,1,2,4),
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(4,2,3,5),
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(5,3,4,6),
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(6,4,5,9);
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SELECT a, CASE (b,c) WHEN (1,2) THEN 'aleph'
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WHEN (2,3) THEN 'bet'
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WHEN (3,4) THEN 'gimel'
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ELSE '-' END,
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'|'
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FROM t1
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ORDER BY a;
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} {1 aleph | 2 bet | 3 aleph | 4 bet | 5 gimel | 6 - |}
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do_execsql_test 1.2 {
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SELECT a, CASE (b,c,d) WHEN (1,2,3) THEN 'aleph'
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WHEN (2,3,4) THEN 'bet'
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WHEN (3,4,6) THEN 'gimel'
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ELSE '-' END,
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'|'
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FROM t1
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ORDER BY a;
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} {1 aleph | 2 bet | 3 - | 4 - | 5 gimel | 6 - |}
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do_execsql_test 2.1 {
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CREATE TABLE t2(x INTEGER PRIMARY KEY, y);
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INSERT INTO t2(x,y) VALUES(1,6),(2,5),(3,4),(4,3),(5,2),(6,1);
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SELECT x, CASE (SELECT b,c FROM t1 WHERE a=y)
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WHEN (1,2) THEN 'aleph'
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WHEN (2,3) THEN 'bet'
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WHEN (3,4) THEN 'gimel'
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ELSE '-' END,
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'|'
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FROM t2
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ORDER BY +x;
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} {1 - | 2 gimel | 3 bet | 4 aleph | 5 bet | 6 aleph |}
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finish_test
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