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authorSimon Riggs <simon@2ndQuadrant.com>2015-04-05 12:03:58 -0400
committerSimon Riggs <simon@2ndQuadrant.com>2015-04-05 12:03:58 -0400
commit35ecc244073a25cc99d76e42f99eb9476a2f8ab3 (patch)
tree07c45c7afba21cb2714464b43f95a8b2ed080e07 /src/test/isolation/specs/alter-table-2.spec
parentcf376a4adc0805b0960a5f8e8325fae7d4456926 (diff)
downloadpostgresql-35ecc244073a25cc99d76e42f99eb9476a2f8ab3.tar.gz
Add new test files for lock level patch
Diffstat (limited to 'src/test/isolation/specs/alter-table-2.spec')
-rw-r--r--src/test/isolation/specs/alter-table-2.spec30
1 files changed, 30 insertions, 0 deletions
diff --git a/src/test/isolation/specs/alter-table-2.spec b/src/test/isolation/specs/alter-table-2.spec
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--- /dev/null
+++ b/src/test/isolation/specs/alter-table-2.spec
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+# ALTER TABLE - Add foreign keys with concurrent reads
+#
+# ADD CONSTRAINT uses ShareRowExclusiveLock so we mix writes with it
+# to see what works or waits.
+
+setup
+{
+ CREATE TABLE a (i int PRIMARY KEY);
+ CREATE TABLE b (a_id int);
+ INSERT INTO a VALUES (0), (1), (2), (3);
+ INSERT INTO b SELECT generate_series(1,1000) % 4;
+}
+
+teardown
+{
+ DROP TABLE a, b;
+}
+
+session "s1"
+step "s1a" { BEGIN; }
+step "s1b" { ALTER TABLE b ADD CONSTRAINT bfk FOREIGN KEY (a_id) REFERENCES a (i) NOT VALID; }
+step "s1c" { COMMIT; }
+
+session "s2"
+step "s2a" { BEGIN; }
+step "s2b" { SELECT * FROM a WHERE i = 1 LIMIT 1 FOR UPDATE; }
+step "s2c" { SELECT * FROM b WHERE a_id = 3 LIMIT 1 FOR UPDATE; }
+step "s2d" { INSERT INTO b VALUES (0); }
+step "s2e" { INSERT INTO a VALUES (4); }
+step "s2f" { COMMIT; }