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Unified Diff: third_party/sqlite/sqlite-src-3080704/test/resolver01.test

Issue 949043002: Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: Created 5 years, 10 months ago
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Index: third_party/sqlite/sqlite-src-3080704/test/resolver01.test
diff --git a/third_party/sqlite/sqlite-src-3080704/test/resolver01.test b/third_party/sqlite/sqlite-src-3080704/test/resolver01.test
new file mode 100644
index 0000000000000000000000000000000000000000..7d95a2132a3240c791eeac125a5b4619d04de264
--- /dev/null
+++ b/third_party/sqlite/sqlite-src-3080704/test/resolver01.test
@@ -0,0 +1,208 @@
+# 2013-04-13
+#
+# The author disclaims copyright to this source code. In place of
+# a legal notice, here is a blessing:
+#
+# May you do good and not evil.
+# May you find forgiveness for yourself and forgive others.
+# May you share freely, never taking more than you give.
+#
+#***********************************************************************
+#
+# This file tests features of the name resolver (the component that
+# figures out what identifiers in the SQL statement refer to) that
+# were fixed by ticket [2500cdb9be]
+#
+# See also tickets [1c69be2daf] and [f617ea3125] from 2013-08-14.
+#
+
+set testdir [file dirname $argv0]
+source $testdir/tester.tcl
+
+# "ORDER BY y" binds to the output result-set column named "y"
+# if available. If no output column is named "y", then try to
+# bind against an input column named "y".
+#
+# This is classical SQL92 behavior.
+#
+do_test resolver01-1.1 {
+ catchsql {
+ CREATE TABLE t1(x, y); INSERT INTO t1 VALUES(11,22);
+ CREATE TABLE t2(y, z); INSERT INTO t2 VALUES(33,44);
+ SELECT 1 AS y FROM t1, t2 ORDER BY y;
+ }
+} {0 1}
+do_test resolver01-1.2 {
+ catchsql {
+ SELECT 1 AS yy FROM t1, t2 ORDER BY y;
+ }
+} {1 {ambiguous column name: y}}
+do_test resolver01-1.3 {
+ catchsql {
+ CREATE TABLE t3(x,y); INSERT INTO t3 VALUES(11,44),(33,22);
+ SELECT x AS y FROM t3 ORDER BY y;
+ }
+} {0 {11 33}}
+do_test resolver01-1.4 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY y;
+ }
+} {0 {33 11}}
+
+# SQLite allows the WHERE clause to reference output columns if there is
+# no other way to resolve the name.
+#
+do_test resolver01-1.5 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY yy;
+ }
+} {0 {11 33}}
+do_test resolver01-1.6 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY 1;
+ }
+} {0 {11 33}}
+
+# The "ORDER BY y COLLATE nocase" form works the same as "ORDER BY y".
+# The "y" binds more tightly to output columns than to input columns.
+#
+# This is for compatibility with SQL92 and with historical SQLite behavior.
+# Note that PostgreSQL considers "y COLLATE nocase" to be an expression
+# and thus PostgreSQL treats this case as if it where the 3.x case below.
+#
+do_test resolver01-2.1 {
+ catchsql {
+ SELECT 2 AS y FROM t1, t2 ORDER BY y COLLATE nocase;
+ }
+} {0 2}
+do_test resolver01-2.2 {
+ catchsql {
+ SELECT 2 AS yy FROM t1, t2 ORDER BY y COLLATE nocase;
+ }
+} {1 {ambiguous column name: y}}
+do_test resolver01-2.3 {
+ catchsql {
+ SELECT x AS y FROM t3 ORDER BY y COLLATE nocase;
+ }
+} {0 {11 33}}
+do_test resolver01-2.4 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY y COLLATE nocase;
+ }
+} {0 {33 11}}
+do_test resolver01-2.5 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY yy COLLATE nocase;
+ }
+} {0 {11 33}}
+do_test resolver01-2.6 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY 1 COLLATE nocase;
+ }
+} {0 {11 33}}
+
+# But if the form is "ORDER BY expr" then bind more tightly to the
+# the input column names and only use the output column names if no
+# input column name matches.
+#
+# This is SQL99 behavior, as implemented by PostgreSQL and MS-SQL.
+# Note that Oracle works differently.
+#
+do_test resolver01-3.1 {
+ catchsql {
+ SELECT 3 AS y FROM t1, t2 ORDER BY +y;
+ }
+} {1 {ambiguous column name: y}}
+do_test resolver01-3.2 {
+ catchsql {
+ SELECT 2 AS yy FROM t1, t2 ORDER BY +y;
+ }
+} {1 {ambiguous column name: y}}
+do_test resolver01-3.3 {
+ catchsql {
+ SELECT x AS y FROM t3 ORDER BY +y;
+ }
+} {0 {33 11}}
+do_test resolver01-3.4 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY +y;
+ }
+} {0 {33 11}}
+do_test resolver01-3.5 {
+ catchsql {
+ SELECT x AS yy FROM t3 ORDER BY +yy
+ }
+} {0 {11 33}}
+
+# This is the test case given in ticket [f617ea3125e9] (with table name
+# changed from "t1" to "t4". The behavior of (1) and (3) match with
+# PostgreSQL, but we intentionally break with PostgreSQL to provide
+# SQL92 behavior for case (2).
+#
+do_execsql_test resolver01-4.1 {
+ CREATE TABLE t4(m CHAR(2));
+ INSERT INTO t4 VALUES('az');
+ INSERT INTO t4 VALUES('by');
+ INSERT INTO t4 VALUES('cx');
+ SELECT '1', substr(m,2) AS m FROM t4 ORDER BY m;
+ SELECT '2', substr(m,2) AS m FROM t4 ORDER BY m COLLATE binary;
+ SELECT '3', substr(m,2) AS m FROM t4 ORDER BY lower(m);
+} {1 x 1 y 1 z 2 x 2 y 2 z 3 z 3 y 3 x}
+
+##########################################################################
+# Test cases for ticket [1c69be2dafc28]: Make sure the GROUP BY binds
+# more tightly to the input tables in all cases.
+#
+# This first case case has been wrong in SQLite for time out of mind.
+# For SQLite version 3.7.17 the answer was two rows, which is wrong.
+#
+do_execsql_test resolver01-5.1 {
+ CREATE TABLE t5(m CHAR(2));
+ INSERT INTO t5 VALUES('ax');
+ INSERT INTO t5 VALUES('bx');
+ INSERT INTO t5 VALUES('cy');
+ SELECT count(*), substr(m,2,1) AS m FROM t5 GROUP BY m ORDER BY 1, 2;
+} {1 x 1 x 1 y}
+
+# This case is unambiguous and has always been correct.
+#
+do_execsql_test resolver01-5.2 {
+ SELECT count(*), substr(m,2,1) AS mx FROM t5 GROUP BY m ORDER BY 1, 2;
+} {1 x 1 x 1 y}
+
+# This case is not allowed in standard SQL, but SQLite allows and does
+# the sensible thing.
+#
+do_execsql_test resolver01-5.3 {
+ SELECT count(*), substr(m,2,1) AS mx FROM t5 GROUP BY mx ORDER BY 1, 2;
+} {1 y 2 x}
+do_execsql_test resolver01-5.4 {
+ SELECT count(*), substr(m,2,1) AS mx FROM t5
+ GROUP BY substr(m,2,1) ORDER BY 1, 2;
+} {1 y 2 x}
+
+# These test case weere provided in the 2013-08-14 email from Rob Golsteijn
+# that originally reported the problem of ticket [1c69be2dafc28].
+#
+do_execsql_test resolver01-6.1 {
+ CREATE TABLE t61(name);
+ SELECT min(name) FROM t61 GROUP BY lower(name);
+} {}
+do_execsql_test resolver01-6.2 {
+ SELECT min(name) AS name FROM t61 GROUP BY lower(name);
+} {}
+do_execsql_test resolver01-6.3 {
+ CREATE TABLE t63(name);
+ INSERT INTO t63 VALUES (NULL);
+ INSERT INTO t63 VALUES ('abc');
+ SELECT count(),
+ NULLIF(name,'abc') AS name
+ FROM t63
+ GROUP BY lower(name);
+} {1 {} 1 {}}
+
+
+
+
+
+finish_test
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