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#
# Test of rewrites of queries where the database (a.k.a. schema) is not
# specified in the pattern.
#
# MySQL behaves in the most peculiar way in this respect. Some
# explanation is order here: When a query is parsed, the
# parser injects the current database when parsing a table name, i.e.
# 'table' is _parsed_ as '<current database>.table'.
#
# The session that loads the rules has no current database, so the rule
# has to specify it if there are unqualified table names in the pattern.
#
CALL mtr.add_suppression("Plugin rewriter reported: 'Some rules failed to load.'");
CREATE DATABASE db1;
CREATE DATABASE db2;
CREATE TABLE t1 ( a VARCHAR(23) );
INSERT INTO t1 VALUES ( 'This was not rewritten.' );
# Query rewrite plugin was installed.
INSERT
INTO query_rewrite.rewrite_rules ( pattern, pattern_database, replacement )
VALUES ( 'SELECT * FROM db1.nonexistent_table1', NULL, 'SELECT "Rule #1"' ),
( 'SELECT * FROM db2.nonexistent_table2', NULL, 'SELECT "Rule #2"' ),
( 'SELECT * FROM nonexistent_table_db1', 'db1', 'SELECT "Rule #3"' ),
( 'SELECT * FROM nonexistent_table_db2', 'db2', 'SELECT "Rule #4"' ),
( 'SELECT * FROM nonexistent_table', NULL, 'SELECT "Rule #5"' ),
( 'SELECT * FROM test.t1', 'test', 'SELECT "Rule #6"' ),
( 'SELECT 1 FROM t1', 'test', 'SELECT 4 FROM t1' ),
( 'SELECT 2 FROM t1', NULL, 'SELECT 5 FROM t1' ),
( 'SELECT 3 FROM test.t1', NULL, 'SELECT 6 FROM t1' );
CALL query_rewrite.flush_rewrite_rules();
ERROR 45000: Loading of some rule(s) failed.
SELECT * FROM query_rewrite.rewrite_rules;
id pattern pattern_database replacement enabled message
1 SELECT * FROM db1.nonexistent_table1 NULL SELECT "Rule #1" YES NULL
2 SELECT * FROM db2.nonexistent_table2 NULL SELECT "Rule #2" YES NULL
3 SELECT * FROM nonexistent_table_db1 db1 SELECT "Rule #3" YES NULL
4 SELECT * FROM nonexistent_table_db2 db2 SELECT "Rule #4" YES NULL
5 SELECT * FROM nonexistent_table NULL SELECT "Rule #5" YES Parse error in pattern: >>No database selected<<
6 SELECT * FROM test.t1 test SELECT "Rule #6" YES NULL
7 SELECT 1 FROM t1 test SELECT 4 FROM t1 YES NULL
8 SELECT 2 FROM t1 NULL SELECT 5 FROM t1 YES Parse error in pattern: >>No database selected<<
9 SELECT 3 FROM test.t1 NULL SELECT 6 FROM t1 YES Parse error in replacement: >>No database selected<<
USE test;
SELECT * FROM db1.nonexistent_table1;
Rule #1
Rule #1
Warnings:
Note 1105 Query 'SELECT * FROM db1.nonexistent_table1' rewritten to 'SELECT "Rule #1"' by a query rewrite plugin
SELECT * FROM db2.nonexistent_table2;
Rule #2
Rule #2
Warnings:
Note 1105 Query 'SELECT * FROM db2.nonexistent_table2' rewritten to 'SELECT "Rule #2"' by a query rewrite plugin
SELECT * FROM nonexistent_table_db1;
ERROR 42S02: Table 'test.nonexistent_table_db1' doesn't exist
SELECT * FROM nonexistent_table_db2;
ERROR 42S02: Table 'test.nonexistent_table_db2' doesn't exist
SELECT * FROM test.t1;
Rule #6
Rule #6
Warnings:
Note 1105 Query 'SELECT * FROM test.t1' rewritten to 'SELECT "Rule #6"' by a query rewrite plugin
SELECT 1 FROM t1;
4
4
Warnings:
Note 1105 Query 'SELECT 1 FROM t1' rewritten to 'SELECT 4 FROM t1' by a query rewrite plugin
USE db1;
SELECT * FROM db1.nonexistent_table1;
Rule #1
Rule #1
Warnings:
Note 1105 Query 'SELECT * FROM db1.nonexistent_table1' rewritten to 'SELECT "Rule #1"' by a query rewrite plugin
SELECT * FROM db2.nonexistent_table2;
Rule #2
Rule #2
Warnings:
Note 1105 Query 'SELECT * FROM db2.nonexistent_table2' rewritten to 'SELECT "Rule #2"' by a query rewrite plugin
SELECT * FROM nonexistent_table_db1;
Rule #3
Rule #3
Warnings:
Note 1105 Query 'SELECT * FROM nonexistent_table_db1' rewritten to 'SELECT "Rule #3"' by a query rewrite plugin
SELECT * FROM nonexistent_table_db2;
ERROR 42S02: Table 'db1.nonexistent_table_db2' doesn't exist
SELECT * FROM test.t1;
Rule #6
Rule #6
Warnings:
Note 1105 Query 'SELECT * FROM test.t1' rewritten to 'SELECT "Rule #6"' by a query rewrite plugin
SELECT 1 FROM t1;
ERROR 42S02: Table 'db1.t1' doesn't exist
USE db2;
SELECT * FROM db1.nonexistent_table1;
Rule #1
Rule #1
Warnings:
Note 1105 Query 'SELECT * FROM db1.nonexistent_table1' rewritten to 'SELECT "Rule #1"' by a query rewrite plugin
SELECT * FROM db2.nonexistent_table2;
Rule #2
Rule #2
Warnings:
Note 1105 Query 'SELECT * FROM db2.nonexistent_table2' rewritten to 'SELECT "Rule #2"' by a query rewrite plugin
SELECT * FROM nonexistent_table_db1;
ERROR 42S02: Table 'db2.nonexistent_table_db1' doesn't exist
SELECT * FROM nonexistent_table_db2;
Rule #4
Rule #4
Warnings:
Note 1105 Query 'SELECT * FROM nonexistent_table_db2' rewritten to 'SELECT "Rule #4"' by a query rewrite plugin
SELECT * FROM test.t1;
Rule #6
Rule #6
Warnings:
Note 1105 Query 'SELECT * FROM test.t1' rewritten to 'SELECT "Rule #6"' by a query rewrite plugin
SELECT 1 FROM t1;
ERROR 42S02: Table 'db2.t1' doesn't exist
DROP DATABASE db1;
DROP DATABASE db2;
USE test;
DROP TABLE t1;
Warnings:
Warning 1620 Plugin is busy and will be uninstalled on shutdown
# Query rewrite plugin was queued for uninstalling.
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