180 lines
5.0 KiB
Plaintext
180 lines
5.0 KiB
Plaintext
# 2022-11-23
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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.
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#
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# This file implements tests to verify that the enhancement
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# request documented by ticket 99378177930f87bd is working.
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#
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# The enhancement is that if an aggregate query with a GROUP BY clause
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# uses subexpressions in the arguments to aggregate functions that are
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# also columns of an index, then the values are pulled from the index
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# rather than being recomputed. This has the potential to make some
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# indexed queries works as if the index were covering.
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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 tkt-99378-100 {
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CREATE TABLE t1(a INT, b TEXT, c INT, d INT);
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INSERT INTO t1(a,b,c,d) VALUES
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(1, '{"x":1}', 12, 3),
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(1, '{"x":2}', 4, 5),
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(1, '{"x":1}', 6, 11),
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(2, '{"x":1}', 22, 3),
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(2, '{"x":2}', 4, 5),
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(3, '{"x":1}', 6, 7);
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CREATE INDEX t1x ON t1(d, a, b->>'x', c);
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} {}
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do_execsql_test tkt-99378-110 {
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {
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1 2 1 16 12
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2 2 1 26 22
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3 1 1 6 6
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}
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# The proof that the index on the expression is being used is in the
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# fact that the byte code contains no "Function" opcodes. In other words,
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# the ->> operator (which is implemented by a function) is never invoked.
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# Instead, the b->>'x' value is pulled out of the index.
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#
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do_execsql_test tkt-99378-120 {
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EXPLAIN
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {~/Function/}
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do_execsql_test tkt-99378-130 {
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY +a;
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} {
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1 2 1 16 12
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2 2 1 26 22
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3 1 1 6 6
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}
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do_execsql_test tkt-99378-140 {
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EXPLAIN
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY +a;
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} {~/Function/}
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do_execsql_test tkt-99378-200 {
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DROP INDEX t1x;
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CREATE INDEX t1x ON t1(a, d, b->>'x', c);
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}
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do_execsql_test tkt-99378-210 {
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {
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1 2 1 16 12
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2 2 1 26 22
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3 1 1 6 6
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}
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do_execsql_test tkt-99378-220 {
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EXPLAIN
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {~/Function/}
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do_execsql_test tkt-99378-230 {
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {
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1 2 1 16 12
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2 2 1 26 22
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3 1 1 6 6
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}
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do_execsql_test tkt-99378-240 {
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EXPLAIN
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SELECT a,
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SUM(1) AS t1,
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SUM(CASE WHEN b->>'x'=1 THEN 1 END) AS t2,
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SUM(c) AS t3,
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SUM(CASE WHEN b->>'x'=1 THEN c END) AS t4
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FROM t1
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WHERE d BETWEEN 0 and 10
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GROUP BY a;
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} {~/Function/}
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# 2022-12-20 dbsqlfuzz a644e70d7683a7ca59c71861a153c1dccf8850b9
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#
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do_execsql_test tkt-99378-300 {
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DROP TABLE IF EXISTS t1;
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CREATE TABLE t1(a INT);
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CREATE INDEX i1 ON t1(a,a=a);
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INSERT INTO t1 VALUES(1),(2),(3),(4);
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SELECT * FROM t1 NATURAL JOIN t1
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WHERE a==1
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OR (
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(SELECT avg(
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(SELECT sum((SELECT 1 FROM t1 NATURAL RIGHT JOIN t1 WHERE a=a)))) AS xyz
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)
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AND a==2
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);
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} {1 2}
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do_execsql_test tkt-99378-310 {
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DROP INDEX i1;
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SELECT * FROM t1 NATURAL JOIN t1
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WHERE a==1
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OR (
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(SELECT avg(
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(SELECT sum((SELECT 1 FROM t1 NATURAL RIGHT JOIN t1 WHERE a=a)))) AS xyz
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)
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AND a==2
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);
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} {1 2}
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finish_test
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