You've already forked mariadb-columnstore-engine
							
							
				mirror of
				https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
				synced 2025-11-03 17:13:17 +03:00 
			
		
		
		
	
		
			
				
	
	
		
			30 lines
		
	
	
		
			917 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
			
		
		
	
	
			30 lines
		
	
	
		
			917 B
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
#
 | 
						|
# Test COALESCE function
 | 
						|
# Author: Bharath, bharath.bokka@mariadb.com
 | 
						|
#
 | 
						|
-- source ../include/have_columnstore.inc
 | 
						|
--source ../include/charset.inc
 | 
						|
 | 
						|
--disable_warnings
 | 
						|
DROP DATABASE IF EXISTS mcs173_db;
 | 
						|
--enable_warnings
 | 
						|
 | 
						|
CREATE DATABASE mcs173_db;
 | 
						|
USE mcs173_db;
 | 
						|
 | 
						|
SET default_storage_engine=Columnstore;
 | 
						|
 | 
						|
CREATE TABLE t1 (a CHAR(1), b INT, c DATETIME, d DOUBLE);
 | 
						|
INSERT INTO t1 VALUES (NULL, NULL, '0-0-0', NULL),('a', 12, '1212-12-12', 1.19691E+100),('b', 13, '1313-3-13 13:13:13', 2.1961E+18),('c', 14, '1414-4-14', 0.16191),('d', 15, '2015-5-15 15:15:15', 1.971917);
 | 
						|
--replace_regex /( COLLATE=latin1_swedish_ci)//
 | 
						|
SHOW CREATE TABLE t1;
 | 
						|
 | 
						|
SELECT COALESCE(NULL, NULL, NULL, 'mariadb', NULL, 'columnstore');
 | 
						|
SELECT COALESCE(NULL, 1, 2, 'columnstore');
 | 
						|
SELECT a, COALESCE(a, 'na') FROM t1;
 | 
						|
SELECT b, COALESCE(b, 'null value') FROM t1;
 | 
						|
SELECT d, COALESCE(d, 'null value') FROM t1;
 | 
						|
 | 
						|
# Clean UP
 | 
						|
DROP DATABASE mcs173_db;
 |