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mariadb/mysql-test/suite/engines/funcs/t/general_null.test
Omer BarNir c92b9b7315 Test suites for engine testing, moved from test-extra so will be available 
for general use.


mysql-test/Makefile.am:
  Adding directories of additional test suites
mysql-test/mysql-stress-test.pl:
  Adding check for additional errors checking during test run
2010-03-17 23:42:07 -07:00

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--disable_warnings
DROP TABLE IF EXISTS t3;
--enable_warnings
CREATE TABLE t3(c1 TINYINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 SMALLINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 MEDIUMINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INTEGER NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 BIGINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MAX(c1) AS value FROM t3;
SELECT MAX(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MAX(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 TINYINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 SMALLINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 MEDIUMINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INTEGER NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 BIGINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT MIN(c1) AS value FROM t3;
SELECT MIN(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT MIN(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 TINYINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 SMALLINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 MEDIUMINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INTEGER NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 BIGINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT AVG(c1) AS value FROM t3;
SELECT AVG(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT AVG(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 TINYINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 SMALLINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 MEDIUMINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INTEGER NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 BIGINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT SUM(c1) AS value FROM t3;
SELECT SUM(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT SUM(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 TINYINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 SMALLINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 MEDIUMINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 INTEGER NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
CREATE TABLE t3(c1 BIGINT NULL);
INSERT INTO t3 (c1) VALUES(0);
INSERT INTO t3 (c1) VALUES(1);
INSERT INTO t3 (c1) VALUES(16);
INSERT INTO t3 (c1) VALUES(-4);
INSERT INTO t3 (c1) VALUES(-9);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
INSERT INTO t3 (c1) VALUES(NULL);
SELECT COUNT(c1) AS value FROM t3;
SELECT COUNT(c1) AS postive_value FROM t3 WHERE c1 > 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 < 0;
SELECT COUNT(c1) AS negative_value FROM t3 WHERE c1 = 2;
DROP TABLE t3;
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