483 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			483 lines
		
	
	
		
			9.8 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| # 2005 November 2
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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.  The
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| # focus of this file is testing CHECK constraints
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| #
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| # $Id: check.test,v 1.13 2009/06/05 17:09:12 drh Exp $
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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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| set ::testprefix check
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| 
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| # Only run these tests if the build includes support for CHECK constraints
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| ifcapable !check {
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|   finish_test
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|   return
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| }
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| 
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| do_test check-1.1 {
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|   execsql {
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|     CREATE TABLE t1(
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|       x INTEGER CHECK( x<5 ),
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|       y REAL CHECK( y>x )
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|     );
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|   }
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| } {}
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| do_test check-1.2 {
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|   execsql {
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|     INSERT INTO t1 VALUES(3,4);
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|     SELECT * FROM t1;
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|   }  
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| } {3 4.0}
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| do_test check-1.3 {
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|   catchsql {
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|     INSERT INTO t1 VALUES(6,7);
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-1.4 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }  
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| } {3 4.0}
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| do_test check-1.5 {
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|   catchsql {
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|     INSERT INTO t1 VALUES(4,3);
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-1.6 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }  
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| } {3 4.0}
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| do_test check-1.7 {
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|   catchsql {
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|     INSERT INTO t1 VALUES(NULL,6);
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|   }
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| } {0 {}}
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| do_test check-1.8 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }  
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| } {3 4.0 {} 6.0}
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| do_test check-1.9 {
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|   catchsql {
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|     INSERT INTO t1 VALUES(2,NULL);
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|   }
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| } {0 {}}
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| do_test check-1.10 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }  
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| } {3 4.0 {} 6.0 2 {}}
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| do_test check-1.11 {
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|   execsql {
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|     DELETE FROM t1 WHERE x IS NULL OR x!=3;
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|     UPDATE t1 SET x=2 WHERE x==3;
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|     SELECT * FROM t1;
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|   }
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| } {2 4.0}
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| do_test check-1.12 {
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|   catchsql {
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|     UPDATE t1 SET x=7 WHERE x==2
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-1.13 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }
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| } {2 4.0}
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| do_test check-1.14 {
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|   catchsql {
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|     UPDATE t1 SET x=5 WHERE x==2
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-1.15 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }
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| } {2 4.0}
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| do_test check-1.16 {
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|   catchsql {
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|     UPDATE t1 SET x=4, y=11 WHERE x==2
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|   }
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| } {0 {}}
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| do_test check-1.17 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }
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| } {4 11.0}
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| 
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| do_test check-2.1 {
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|   execsql {
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|     CREATE TABLE t2(
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|       x INTEGER CONSTRAINT one CHECK( typeof(coalesce(x,0))=="integer" ),
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|       y REAL CONSTRAINT two CHECK( typeof(coalesce(y,0.1))=='real' ),
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|       z TEXT CONSTRAINT three CHECK( typeof(coalesce(z,''))=='text' )
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|     );
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|   }
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| } {}
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| do_test check-2.2 {
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|   execsql {
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|     INSERT INTO t2 VALUES(1,2.2,'three');
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|     SELECT * FROM t2;
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|   }
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| } {1 2.2 three}
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| db close
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| sqlite3 db test.db
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| do_test check-2.3 {
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|   execsql {
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|     INSERT INTO t2 VALUES(NULL, NULL, NULL);
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|     SELECT * FROM t2;
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|   }
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| } {1 2.2 three {} {} {}}
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| do_test check-2.4 {
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|   catchsql {
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|     INSERT INTO t2 VALUES(1.1, NULL, NULL);
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|   }
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| } {1 {CHECK constraint failed: one}}
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| do_test check-2.5 {
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|   catchsql {
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|     INSERT INTO t2 VALUES(NULL, 5, NULL);
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|   }
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| } {1 {CHECK constraint failed: two}}
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| do_test check-2.6 {
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|   catchsql {
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|     INSERT INTO t2 VALUES(NULL, NULL, 3.14159);
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|   }
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| } {1 {CHECK constraint failed: three}}
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| 
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| # Undocumented behavior:  The CONSTRAINT name clause can follow a constraint.
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| # Such a clause is ignored.  But the parser must accept it for backwards
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| # compatibility.
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| #
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| do_test check-2.10 {
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|   execsql {
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|     CREATE TABLE t2b(
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|       x INTEGER CHECK( typeof(coalesce(x,0))=='integer' ) CONSTRAINT one,
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|       y TEXT PRIMARY KEY constraint two,
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|       z INTEGER,
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|       UNIQUE(x,z) constraint three
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|     );
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|   }
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| } {}
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| do_test check-2.11 {
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|   catchsql {
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|     INSERT INTO t2b VALUES('xyzzy','hi',5);
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|   }
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| } {1 {CHECK constraint failed: t2b}}
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| do_test check-2.12 {
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|   execsql {
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|     CREATE TABLE t2c(
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|       x INTEGER CONSTRAINT x_one CONSTRAINT x_two
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|           CHECK( typeof(coalesce(x,0))=='integer' )
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|           CONSTRAINT x_two CONSTRAINT x_three,
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|       y INTEGER, z INTEGER,
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|       CONSTRAINT u_one UNIQUE(x,y,z) CONSTRAINT u_two
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|     );
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|   }
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| } {}
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| do_test check-2.13 {
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|   catchsql {
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|     INSERT INTO t2c VALUES('xyzzy',7,8);
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|   }
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| } {1 {CHECK constraint failed: x_two}}
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| do_test check-2.cleanup {
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|   execsql {
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|     DROP TABLE IF EXISTS t2b;
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|     DROP TABLE IF EXISTS t2c;
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|   }
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| } {}
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| 
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| ifcapable subquery {
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|   do_test check-3.1 {
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|     catchsql {
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|       CREATE TABLE t3(
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|         x, y, z,
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|         CHECK( x<(SELECT min(x) FROM t1) )
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|       );
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|     }
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|   } {1 {subqueries prohibited in CHECK constraints}}
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| }
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| 
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| do_test check-3.2 {
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|   execsql {
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|     SELECT name FROM sqlite_master ORDER BY name
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|   }
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| } {t1 t2}
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| do_test check-3.3 {
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|   catchsql {
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|     CREATE TABLE t3(
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|       x, y, z,
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|       CHECK( q<x )
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|     );
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|   }
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| } {1 {no such column: q}}
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| do_test check-3.4 {
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|   execsql {
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|     SELECT name FROM sqlite_master ORDER BY name
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|   }
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| } {t1 t2}
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| do_test check-3.5 {
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|   catchsql {
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|     CREATE TABLE t3(
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|       x, y, z,
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|       CHECK( t2.x<x )
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|     );
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|   }
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| } {1 {no such column: t2.x}}
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| do_test check-3.6 {
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|   execsql {
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|     SELECT name FROM sqlite_master ORDER BY name
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|   }
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| } {t1 t2}
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| do_test check-3.7 {
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|   catchsql {
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|     CREATE TABLE t3(
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|       x, y, z,
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|       CHECK( t3.x<25 )
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|     );
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|   }
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| } {0 {}}
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| do_test check-3.8 {
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|   execsql {
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|     INSERT INTO t3 VALUES(1,2,3);
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|     SELECT * FROM t3;
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|   }
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| } {1 2 3}
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| do_test check-3.9 {
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|   catchsql {
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|     INSERT INTO t3 VALUES(111,222,333);
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|   }
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| } {1 {CHECK constraint failed: t3}}
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| 
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| do_test check-4.1 {
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|   execsql {
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|     CREATE TABLE t4(x, y,
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|       CHECK (
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|            x+y==11
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|         OR x*y==12
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|         OR x/y BETWEEN 5 AND 8
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|         OR -x==y+10
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|       )
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|     );
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|   }
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| } {}
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| do_test check-4.2 {
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|   execsql {
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|     INSERT INTO t4 VALUES(1,10);
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|     SELECT * FROM t4
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|   }
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| } {1 10}
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| do_test check-4.3 {
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|   execsql {
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|     UPDATE t4 SET x=4, y=3;
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|     SELECT * FROM t4
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|   }
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| } {4 3}
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| do_test check-4.4 {
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|   execsql {
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|     UPDATE t4 SET x=12, y=2;
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|     SELECT * FROM t4
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|   }
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| } {12 2}
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| do_test check-4.5 {
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|   execsql {
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|     UPDATE t4 SET x=12, y=-22;
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|     SELECT * FROM t4
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|   }
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| } {12 -22}
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| do_test check-4.6 {
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|   catchsql {
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|     UPDATE t4 SET x=0, y=1;
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|   }
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| } {1 {CHECK constraint failed: t4}}
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| do_test check-4.7 {
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|   execsql {
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|     SELECT * FROM t4;
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|   }
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| } {12 -22}
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| do_test check-4.8 {
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|   execsql {
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|     PRAGMA ignore_check_constraints=ON;
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|     UPDATE t4 SET x=0, y=1;
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|     SELECT * FROM t4;
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|   }
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| } {0 1}
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| do_test check-4.9 {
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|   catchsql {
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|     PRAGMA ignore_check_constraints=OFF;
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|     UPDATE t4 SET x=0, y=2;
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|   }
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| } {1 {CHECK constraint failed: t4}}
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| ifcapable vacuum {
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|   do_test check_4.10 {
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|     catchsql {
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|       VACUUM
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|     }
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|   } {0 {}}
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| }
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| 
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| do_test check-5.1 {
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|   catchsql {
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|     CREATE TABLE t5(x, y,
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|       CHECK( x*y<:abc )
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|     );
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|   }
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| } {1 {parameters prohibited in CHECK constraints}}
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| do_test check-5.2 {
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|   catchsql {
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|     CREATE TABLE t5(x, y,
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|       CHECK( x*y<? )
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|     );
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|   }
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| } {1 {parameters prohibited in CHECK constraints}}
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| 
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| ifcapable conflict {
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| 
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| do_test check-6.1 {
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|   execsql {SELECT * FROM t1}
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| } {4 11.0}
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| do_test check-6.2 {
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|   execsql {
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|     UPDATE OR IGNORE t1 SET x=5;
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|     SELECT * FROM t1;
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|   }
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| } {4 11.0}
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| do_test check-6.3 {
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|   execsql {
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|     INSERT OR IGNORE INTO t1 VALUES(5,4.0);
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|     SELECT * FROM t1;
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|   }
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| } {4 11.0}
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| do_test check-6.4 {
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|   execsql {
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|     INSERT OR IGNORE INTO t1 VALUES(2,20.0);
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|     SELECT * FROM t1;
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|   }
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| } {4 11.0 2 20.0}
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| do_test check-6.5 {
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|   catchsql {
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|     UPDATE OR FAIL t1 SET x=7-x, y=y+1;
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-6.6 {
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|   execsql {
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|     SELECT * FROM t1;
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|   }
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| } {3 12.0 2 20.0}
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| do_test check-6.7 {
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|   catchsql {
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|     BEGIN;
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|     INSERT INTO t1 VALUES(1,30.0);
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|     INSERT OR ROLLBACK INTO t1 VALUES(8,40.0);
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-6.8 {
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|   catchsql {
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|     COMMIT;
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|   }
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| } {1 {cannot commit - no transaction is active}}
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| do_test check-6.9 {
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|   execsql {
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|     SELECT * FROM t1
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|   }
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| } {3 12.0 2 20.0}
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| 
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| do_test check-6.11 {
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|   execsql {SELECT * FROM t1}
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| } {3 12.0 2 20.0}
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| do_test check-6.12 {
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|   catchsql {
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|     REPLACE INTO t1 VALUES(6,7);
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|   }
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| } {1 {CHECK constraint failed: t1}}
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| do_test check-6.13 {
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|   execsql {SELECT * FROM t1}
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| } {3 12.0 2 20.0}
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| do_test check-6.14 {
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|   catchsql {
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|     INSERT OR IGNORE INTO t1 VALUES(6,7);
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|   }
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| } {0 {}}
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| do_test check-6.15 {
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|   execsql {SELECT * FROM t1}
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| } {3 12.0 2 20.0}
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| 
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| 
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| }
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| 
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| #--------------------------------------------------------------------------
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| # If a connection opens a database that contains a CHECK constraint that
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| # uses an unknown UDF, the schema should not be considered malformed.
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| # Attempting to modify the table should fail (since the CHECK constraint
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| # cannot be tested).
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| #
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| reset_db
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| proc myfunc {x} {expr $x < 10}
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| db func myfunc myfunc
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| 
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| do_execsql_test  7.1 { CREATE TABLE t6(a CHECK (myfunc(a))) }
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| do_execsql_test  7.2 { INSERT INTO t6 VALUES(9)  }
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| do_catchsql_test 7.3 { INSERT INTO t6 VALUES(11) } \
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|           {1 {CHECK constraint failed: t6}}
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| 
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| do_test 7.4 {
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|   sqlite3 db2 test.db
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|   execsql { SELECT * FROM t6 } db2 
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| } {9}
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| 
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| do_test 7.5 {
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|   catchsql { INSERT INTO t6 VALUES(8) } db2
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| } {1 {unknown function: myfunc()}}
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| 
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| do_test 7.6 {
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|   catchsql { CREATE TABLE t7(a CHECK (myfunc(a))) } db2
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| } {1 {no such function: myfunc}}
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| 
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| do_test 7.7 {
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|   db2 func myfunc myfunc
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|   execsql { INSERT INTO t6 VALUES(8) } db2
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| } {}
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| 
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| do_test 7.8 {
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|   db2 func myfunc myfunc
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|   catchsql { INSERT INTO t6 VALUES(12) } db2
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| } {1 {CHECK constraint failed: t6}}
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| 
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| # 2013-08-02:  Silently ignore database name qualifiers in CHECK constraints.
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| #
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| do_execsql_test 8.1 {
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|   CREATE TABLE t810(a, CHECK( main.t810.a>0 ));
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|   CREATE TABLE t811(b, CHECK( xyzzy.t811.b BETWEEN 5 AND 10 ));
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| } {}
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| 
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| # Make sure check constraints involving the ROWID are not ignored
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| #
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| do_execsql_test 9.1 {
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|   CREATE TABLE t1(
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|     a INTEGER PRIMARY KEY,
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|     b INTEGER NOT NULL CONSTRAINT 'b-check' CHECK( b>a ),
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|     c INTEGER NOT NULL CONSTRAINT 'c-check' CHECK( c>rowid*2 ),
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|     d INTEGER NOT NULL CONSTRAINT 'd-check' CHECK( d BETWEEN b AND c )
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|   );
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|   INSERT INTO t1(a,b,c,d) VALUES(1,2,4,3),(2,4,6,5),(3,10,30,20);
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| } {}
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| do_catchsql_test 9.2 {
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|   UPDATE t1 SET b=0 WHERE a=1;
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| } {1 {CHECK constraint failed: b-check}}
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| do_catchsql_test 9.3 {
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|   UPDATE t1 SET c=a*2 WHERE a=1;
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| } {1 {CHECK constraint failed: c-check}}
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| 
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| 
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| 
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| finish_test
 | 
