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Posted to commits@cassandra.apache.org by sl...@apache.org on 2016/09/13 08:52:57 UTC
[2/8] cassandra git commit: Update tests
Update tests
Project: http://git-wip-us.apache.org/repos/asf/cassandra/repo
Commit: http://git-wip-us.apache.org/repos/asf/cassandra/commit/006ebf64
Tree: http://git-wip-us.apache.org/repos/asf/cassandra/tree/006ebf64
Diff: http://git-wip-us.apache.org/repos/asf/cassandra/diff/006ebf64
Branch: refs/heads/12060-3.0-v2
Commit: 006ebf641db1bdf096b49320cf6f1247c4ef58f1
Parents: 94e1d56
Author: Alex Petrov <ol...@gmail.com>
Authored: Thu Aug 11 09:12:19 2016 +0200
Committer: Alex Petrov <ol...@gmail.com>
Committed: Wed Aug 17 15:30:21 2016 +0200
----------------------------------------------------------------------
.../operations/InsertUpdateIfConditionTest.java | 287 +++++++++++++------
1 file changed, 196 insertions(+), 91 deletions(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/cassandra/blob/006ebf64/test/unit/org/apache/cassandra/cql3/validation/operations/InsertUpdateIfConditionTest.java
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diff --git a/test/unit/org/apache/cassandra/cql3/validation/operations/InsertUpdateIfConditionTest.java b/test/unit/org/apache/cassandra/cql3/validation/operations/InsertUpdateIfConditionTest.java
index a1ee4f8..e4fcccc 100644
--- a/test/unit/org/apache/cassandra/cql3/validation/operations/InsertUpdateIfConditionTest.java
+++ b/test/unit/org/apache/cassandra/cql3/validation/operations/InsertUpdateIfConditionTest.java
@@ -111,8 +111,9 @@ public class InsertUpdateIfConditionTest extends CQLTester
// Shouldn't apply
assertRows(execute("UPDATE %s SET v1 = 3, v2 = 'bar' WHERE k = 0 IF EXISTS"), row(false));
- // Should apply
- assertRows(execute("DELETE FROM %s WHERE k = 0 IF v1 IN (null)"), row(true));
+ // Shouldn't apply
+ assertEmpty(execute("SELECT * FROM %s WHERE k = 0"));
+ assertRows(execute("DELETE FROM %s WHERE k = 0 IF v1 IN (null)"), row(false));
createTable(" CREATE TABLE %s (k int, c int, v1 text, PRIMARY KEY(k, c))");
assertInvalidMessage("IN on the clustering key columns is not supported with conditional updates",
@@ -254,7 +255,7 @@ public class InsertUpdateIfConditionTest extends CQLTester
"UPDATE %1$s SET v='barfoo' WHERE id=0 AND k='k2'; " +
"UPDATE %1$s SET version=3 WHERE id=0 IF version=1; " +
"APPLY BATCH "),
- row(false, 0, null, 2));
+ row(false, 0, "k1", 2));
assertRows(execute("BEGIN BATCH " +
"UPDATE %1$s SET v = 'foobar' WHERE id = 0 AND k = 'k1'; " +
@@ -489,8 +490,10 @@ public class InsertUpdateIfConditionTest extends CQLTester
createTable("CREATE TABLE %s (partition text, key text, owner text, PRIMARY KEY (partition, key) ) WITH COMPACT STORAGE");
execute("INSERT INTO %s (partition, key, owner) VALUES ('a', 'b', null)");
- assertRows(execute("UPDATE %s SET owner='z' WHERE partition='a' AND key='b' IF owner=null"), row(true));
+ assertEmpty(execute("SELECT * FROM %s"));
+ assertRows(execute("UPDATE %s SET owner='z' WHERE partition='a' AND key='b' IF owner=null"), row(false)); // CASSANDRA-12426
+ execute("INSERT INTO %s (partition, key, owner) VALUES ('a', 'b', 'z')");
assertRows(execute("UPDATE %s SET owner='b' WHERE partition='a' AND key='b' IF owner='a'"), row(false, "z"));
assertRows(execute("UPDATE %s SET owner='b' WHERE partition='a' AND key='b' IF owner='z'"), row(true));
@@ -1038,47 +1041,138 @@ public class InsertUpdateIfConditionTest extends CQLTester
assertRows(execute("SELECT * FROM %s WHERE a = 6"),
row(6, 6, 6, "a"));
+ execute("INSERT INTO %s (a, b, s, d) values (7, 7, 100, 'a')");
+ assertRows(execute("UPDATE %s SET s = 7 WHERE a = 7 IF s = 101"),
+ row(false, 100));
+ assertRows(execute("SELECT * FROM %s WHERE a = 7"),
+ row(7, 7, 100, "a"));
+
// pre-existing row with null in the static column
execute("INSERT INTO %s (a, b, d) values (7, 7, 'a')");
assertRows(execute("UPDATE %s SET s = 7 WHERE a = 7 IF s = NULL"),
- row(true));
+ row(false, 100));
assertRows(execute("SELECT * FROM %s WHERE a = 7"),
- row(7, 7, 7, "a"));
+ row(7, 7, 100, "a"));
- // deleting row before CAS
+ // deleting row before CAS makes it effectively non-existing
execute("DELETE FROM %s WHERE a = 8;");
assertRows(execute("UPDATE %s SET s = 8 WHERE a = 8 IF s = NULL"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 8"),
- row(8, null, 8, null));
+ row(false));
+ assertRows(execute("SELECT * FROM %s WHERE a = 8"));
}
@Test
public void testConditionalUpdatesWithNullValues() throws Throwable
{
- createTable("CREATE TABLE %s (a int, b int, s int static, d text, PRIMARY KEY (a, b))");
+ createTable("CREATE TABLE %s (a int, b int, s int static, d int, PRIMARY KEY (a, b))");
// pre-populate, leave out static column
for (int i = 1; i <= 5; i++)
- execute("INSERT INTO %s (a, b) VALUES (?, ?)", i, i);
+ {
+ execute("INSERT INTO %s (a, b) VALUES (?, ?)", i, 1);
+ execute("INSERT INTO %s (a, b) VALUES (?, ?)", i, 2);
+ }
- conditionalUpdatesWithNonExistingOrNullValues();
+ assertRows(execute("UPDATE %s SET s = 100 WHERE a = 1 IF s = NULL"),
+ row(true));
+ assertRows(execute("SELECT a, b, s, d FROM %s WHERE a = 1"),
+ row(1, 1, 100, null),
+ row(1, 2, 100, null));
+
+ assertRows(execute("UPDATE %s SET s = 200 WHERE a = 2 IF s IN (10,20,NULL)"),
+ row(true));
+ assertRows(execute("SELECT a, b, s, d FROM %s WHERE a = 2"),
+ row(2, 1, 200, null),
+ row(2, 2, 200, null));
// rejected: IN doesn't contain null
assertRows(execute("UPDATE %s SET s = 30 WHERE a = 3 IF s IN (10,20,30)"),
- row(false));
+ row(false, null));
assertRows(execute("SELECT * FROM %s WHERE a = 3"),
- row(3, 3, null, null));
+ row(3, 1, null, null),
+ row(3, 2, null, null));
+
+ assertRows(execute("UPDATE %s SET s = 400 WHERE a = 4 IF s IN (10,20,NULL)"),
+ row(true));
+ assertRows(execute("SELECT * FROM %s WHERE a = 4"),
+ row(4, 1, 400, null),
+ row(4, 2, 400, null));
+
+ assertRows(execute("UPDATE %s SET s = 500 WHERE a = 500 IF s != 5"),
+ row(false));
+ assertRows(execute("SELECT a, b, s, d FROM %s WHERE a = 5"),
+ row(5, 1, null, null),
+ row(5, 2, null, null));
// rejected: comparing number with NULL always returns false
for (String operator: new String[] { ">", "<", ">=", "<=", "="})
{
assertRows(execute("UPDATE %s SET s = 50 WHERE a = 5 IF s " + operator + " 3"),
- row(false));
+ row(false, null));
assertRows(execute("SELECT * FROM %s WHERE a = 5"),
- row(5, 5, null, null));
+ row(5, 1, null, null),
+ row(5, 2, null, null));
}
+ // Similar test, although with two static columns to test limits
+ createTable("CREATE TABLE %s (a int, b int, s1 int static, s2 int static, d int, PRIMARY KEY (a, b))");
+
+ for (int i = 1; i <= 5; i++)
+ for (int j = 0; j < 5; j++)
+ execute("INSERT INTO %s (a, b, d) VALUES (?, ?, ?)", i, j, i + j);
+
+ assertRows(execute("UPDATE %s SET s2 = 100 WHERE a = 1 IF s1 = NULL"),
+ row(true));
+
+ execute("INSERT INTO %s (a, b, s1) VALUES (?, ?, ?)", 2, 2, 2);
+ assertRows(execute("UPDATE %s SET s1 = 100 WHERE a = 2 IF s2 = NULL"),
+ row(true));
+
+ execute("INSERT INTO %s (a, b, s1) VALUES (?, ?, ?)", 2, 2, 2);
+ assertRows(execute("UPDATE %s SET s1 = 100 WHERE a = 2 IF s2 = NULL"),
+ row(true));
+ }
+
+ @Test
+ public void testStaticsWithMultipleConditions() throws Throwable
+ {
+ createTable("CREATE TABLE %s (a int, b int, s1 int static, s2 int static, d int, PRIMARY KEY (a, b))");
+
+ for (int i = 1; i <= 5; i++)
+ {
+ execute("INSERT INTO %s (a, b, d) VALUES (?, ?, ?)", i, 1, 5);
+ execute("INSERT INTO %s (a, b, d) VALUES (?, ?, ?)", i, 2, 6);
+ }
+
+ assertRows(execute("BEGIN BATCH\n"
+ + "UPDATE %1$s SET s2 = 102 WHERE a = 1 IF s1 = null;\n"
+ + "UPDATE %1$s SET s1 = 101 WHERE a = 1 IF s2 = null;\n"
+ + "APPLY BATCH"),
+ row(true));
+ assertRows(execute("SELECT * FROM %s WHERE a = 1"),
+ row(1, 1, 101, 102, 5),
+ row(1, 2, 101, 102, 6));
+
+
+ assertRows(execute("BEGIN BATCH\n"
+ + "UPDATE %1$s SET s2 = 202 WHERE a = 2 IF s1 = null;\n"
+ + "UPDATE %1$s SET s1 = 201 WHERE a = 2 IF s2 = null;\n"
+ + "UPDATE %1$s SET d = 203 WHERE a = 2 AND b = 1 IF d = 5;\n"
+ + "UPDATE %1$s SET d = 204 WHERE a = 2 AND b = 2 IF d = 6;\n"
+ + "APPLY BATCH"),
+ row(true));
+
+ assertRows(execute("SELECT * FROM %s WHERE a = 2"),
+ row(2, 1, 201, 202, 203),
+ row(2, 2, 201, 202, 204));
+
+ assertRows(execute("BEGIN BATCH\n"
+ + "UPDATE %1$s SET s2 = 202 WHERE a = 20 IF s1 = null;\n"
+ + "UPDATE %1$s SET s1 = 201 WHERE a = 20 IF s2 = null;\n"
+ + "UPDATE %1$s SET d = 203 WHERE a = 20 AND b = 1 IF d = 5;\n"
+ + "UPDATE %1$s SET d = 204 WHERE a = 20 AND b = 2 IF d = 6;\n"
+ + "APPLY BATCH"),
+ row(false));
}
@Test
@@ -1086,7 +1180,19 @@ public class InsertUpdateIfConditionTest extends CQLTester
{
createTable("CREATE TABLE %s (a int, b int, s int static, d text, PRIMARY KEY (a, b))");
- conditionalUpdatesWithNonExistingOrNullValues();
+ // "s = NULL" means "the container of x exists but x itself is null", if container does not
+ // exist, LWT should not be applied
+ assertRows(execute("UPDATE %s SET s = 1 WHERE a = 1 IF s = NULL"),
+ row(false));
+ assertEmpty(execute("SELECT a, s, d FROM %s WHERE a = 1"));
+
+ assertRows(execute("UPDATE %s SET s = 2 WHERE a = 2 IF s IN (10,20,NULL)"),
+ row(false));
+ assertEmpty(execute("SELECT a, s, d FROM %s WHERE a = 2"));
+
+ assertRows(execute("UPDATE %s SET s = 4 WHERE a = 4 IF s != 4"),
+ row(false));
+ assertEmpty(execute("SELECT a, s, d FROM %s WHERE a = 4"));
// rejected: IN doesn't contain null
assertRows(execute("UPDATE %s SET s = 3 WHERE a = 3 IF s IN (10,20,30)"),
@@ -1102,24 +1208,6 @@ public class InsertUpdateIfConditionTest extends CQLTester
}
}
- private void conditionalUpdatesWithNonExistingOrNullValues() throws Throwable
- {
- assertRows(execute("UPDATE %s SET s = 1 WHERE a = 1 IF s = NULL"),
- row(true));
- assertRows(execute("SELECT a, s, d FROM %s WHERE a = 1"),
- row(1, 1, null));
-
- assertRows(execute("UPDATE %s SET s = 2 WHERE a = 2 IF s IN (10,20,NULL)"),
- row(true));
- assertRows(execute("SELECT a, s, d FROM %s WHERE a = 2"),
- row(2, 2, null));
-
- assertRows(execute("UPDATE %s SET s = 4 WHERE a = 4 IF s != 4"),
- row(true));
- assertRows(execute("SELECT a, s, d FROM %s WHERE a = 4"),
- row(4, 4, null));
- }
-
@Test
public void testConditionalUpdatesWithNullValuesWithBatch() throws Throwable
{
@@ -1129,7 +1217,14 @@ public class InsertUpdateIfConditionTest extends CQLTester
for (int i = 1; i <= 6; i++)
execute("INSERT INTO %s (a, b) VALUES (?, ?)", i, i);
- testConditionalUpdatesWithNonExistingOrNullValuesWithBatch();
+ // applied: null is indistiguishable from empty value, lwt condition is executed before INSERT
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, d) values (2, 2, 'a');\n"
+ + "UPDATE %1$s SET s = 2 WHERE a = 2 IF s = null;\n"
+ + "APPLY BATCH"),
+ row(true));
+ assertRows(execute("SELECT * FROM %s WHERE a = 2"),
+ row(2, 2, 2, "a"));
// rejected: comparing number with null value always returns false
for (String operator: new String[] { ">", "<", ">=", "<=", "="})
@@ -1138,20 +1233,45 @@ public class InsertUpdateIfConditionTest extends CQLTester
+ "INSERT INTO %1$s (a, b, s, d) values (3, 3, 40, 'a');\n"
+ "UPDATE %1$s SET s = 30 WHERE a = 3 IF s " + operator + " 5;\n"
+ "APPLY BATCH"),
- row(false));
+ row(false, 3, 3, null));
assertRows(execute("SELECT * FROM %s WHERE a = 3"),
row(3, 3, null, null));
}
+ // applied: lwt condition is executed before INSERT, update is applied after it
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, s, d) values (4, 4, 4, 'a');\n"
+ + "UPDATE %1$s SET s = 5 WHERE a = 4 IF s = null;\n"
+ + "APPLY BATCH"),
+ row(true));
+ assertRows(execute("SELECT * FROM %s WHERE a = 4"),
+ row(4, 4, 5, "a"));
+
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, s, d) values (5, 5, 5, 'a');\n"
+ + "UPDATE %1$s SET s = 6 WHERE a = 5 IF s IN (1,2,null);\n"
+ + "APPLY BATCH"),
+ row(true));
+ assertRows(execute("SELECT * FROM %s WHERE a = 5"),
+ row(5, 5, 6, "a"));
+
// rejected: IN doesn't contain null
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s, d) values (6, 6, 70, 'a');\n"
+ "UPDATE %1$s SET s = 60 WHERE a = 6 IF s IN (1,2,3);\n"
+ "APPLY BATCH"),
- row(false));
+ row(false, 6, 6, null));
assertRows(execute("SELECT * FROM %s WHERE a = 6"),
row(6, 6, null, null));
+ // "s != 7" means "container exists and the value within that container is not equal to 7"
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, s, d) values (7, 7, 7, 'a');\n"
+ + "UPDATE %1$s SET s = 8 WHERE a = 7 IF s != 7;\n"
+ + "APPLY BATCH"),
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 7"));
+
}
@Test
@@ -1159,63 +1279,53 @@ public class InsertUpdateIfConditionTest extends CQLTester
{
createTable("CREATE TABLE %s (a int, b int, s int static, d text, PRIMARY KEY (a, b))");
- testConditionalUpdatesWithNonExistingOrNullValuesWithBatch();
-
- // rejected: comparing number with non-existing value always returns false
- for (String operator: new String[] { ">", "<", ">=", "<=", "="})
- {
- assertRows(execute("BEGIN BATCH\n"
- + "INSERT INTO %1$s (a, b, s, d) values (3, 3, 3, 'a');\n"
- + "UPDATE %1$s SET s = 3 WHERE a = 3 IF s " + operator + " 5;\n"
- + "APPLY BATCH"),
- row(false));
- assertEmpty(execute("SELECT * FROM %s WHERE a = 3"));
- }
-
- // rejected: IN doesn't contain null
- assertRows(execute("BEGIN BATCH\n"
- + "INSERT INTO %1$s (a, b, s, d) values (6, 6, 6, 'a');\n"
- + "UPDATE %1$s SET s = 7 WHERE a = 6 IF s IN (1,2,3);\n"
- + "APPLY BATCH"),
- row(false));
- assertEmpty(execute("SELECT * FROM %s WHERE a = 6"));
- }
-
- private void testConditionalUpdatesWithNonExistingOrNullValuesWithBatch() throws Throwable
- {
- // applied: null is indistiguishable from empty value, lwt condition is executed before INSERT
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, d) values (2, 2, 'a');\n"
+ "UPDATE %1$s SET s = 2 WHERE a = 2 IF s = null;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 2"),
- row(2, 2, 2, "a"));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 2"));
// applied: lwt condition is executed before INSERT, update is applied after it
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s, d) values (4, 4, 4, 'a');\n"
+ "UPDATE %1$s SET s = 5 WHERE a = 4 IF s = null;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 4"),
- row(4, 4, 5, "a"));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 4"));
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s, d) values (5, 5, 5, 'a');\n"
+ "UPDATE %1$s SET s = 6 WHERE a = 5 IF s IN (1,2,null);\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 5"),
- row(5, 5, 6, "a"));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 5"));
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s, d) values (7, 7, 7, 'a');\n"
+ "UPDATE %1$s SET s = 8 WHERE a = 7 IF s != 7;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 7"),
- row(7, 7, 8, "a"));
+ row(false));
+ assertRows(execute("SELECT * FROM %s WHERE a = 7"));
+
+ // rejected: comparing number with non-existing value always returns false
+ for (String operator: new String[] { ">", "<", ">=", "<=", "="})
+ {
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, s, d) values (3, 3, 3, 'a');\n"
+ + "UPDATE %1$s SET s = 3 WHERE a = 3 IF s " + operator + " 5;\n"
+ + "APPLY BATCH"),
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 3"));
+ }
+
+ // rejected: IN doesn't contain null
+ assertRows(execute("BEGIN BATCH\n"
+ + "INSERT INTO %1$s (a, b, s, d) values (6, 6, 6, 'a');\n"
+ + "UPDATE %1$s SET s = 7 WHERE a = 6 IF s IN (1,2,3);\n"
+ + "APPLY BATCH"),
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 6"));
}
@Test
@@ -1233,7 +1343,7 @@ public class InsertUpdateIfConditionTest extends CQLTester
// rejected: IN doesn't contain null
assertRows(execute("DELETE s1 FROM %s WHERE a = 2 IF s2 IN (10,20,30)"),
- row(false));
+ row(false, null));
assertRows(execute("SELECT * FROM %s WHERE a = 2"),
row(2, 2, 2, null, 2));
@@ -1251,7 +1361,7 @@ public class InsertUpdateIfConditionTest extends CQLTester
for (String operator : new String[]{ ">", "<", ">=", "<=", "=" })
{
assertRows(execute("DELETE s1 FROM %s WHERE a = 5 IF s2 " + operator + " 3"),
- row(false));
+ row(false, null));
assertRows(execute("SELECT * FROM %s WHERE a = 5"),
row(5, 5, 5, null, 5));
}
@@ -1262,14 +1372,12 @@ public class InsertUpdateIfConditionTest extends CQLTester
{
createTable("CREATE TABLE %s (a int, b int, s1 int static, s2 int static, v int, PRIMARY KEY (a, b))");
- // applied: null is indistiguishable from empty value, lwt condition is executed before INSERT
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s1, v) values (2, 2, 2, 2);\n"
+ "DELETE s1 FROM %1$s WHERE a = 2 IF s2 = null;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 2"),
- row(2, 2, null, null, 2));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 2"));
// rejected: comparing number with non-existing value always returns false
for (String operator: new String[] { ">", "<", ">=", "<=", "="})
@@ -1294,24 +1402,21 @@ public class InsertUpdateIfConditionTest extends CQLTester
+ "INSERT INTO %1$s (a, b, s1, v) values (4, 4, 4, 4);\n"
+ "DELETE s1 FROM %1$s WHERE a = 4 IF s2 = null;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 4"),
- row(4, 4, null, null, 4));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 4"));
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s1, v) VALUES (5, 5, 5, 5);\n"
+ "DELETE s1 FROM %1$s WHERE a = 5 IF s1 IN (1,2,null);\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 5"),
- row(5, 5, null, null, 5));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 5"));
assertRows(execute("BEGIN BATCH\n"
+ "INSERT INTO %1$s (a, b, s1, v) values (7, 7, 7, 7);\n"
+ "DELETE s1 FROM %1$s WHERE a = 7 IF s2 != 7;\n"
+ "APPLY BATCH"),
- row(true));
- assertRows(execute("SELECT * FROM %s WHERE a = 7"),
- row(7, 7, null, null, 7));
+ row(false));
+ assertEmpty(execute("SELECT * FROM %s WHERE a = 7"));
}
}