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Diffstat (limited to 'mysql-test/main/get_diagnostics.test')
| -rw-r--r-- | mysql-test/main/get_diagnostics.test | 852 |
1 files changed, 852 insertions, 0 deletions
diff --git a/mysql-test/main/get_diagnostics.test b/mysql-test/main/get_diagnostics.test new file mode 100644 index 00000000000..a30bad72136 --- /dev/null +++ b/mysql-test/main/get_diagnostics.test @@ -0,0 +1,852 @@ +--echo # +--echo # WL#2111: GET DIAGNOSTICS tests +--echo # + +--echo # +--echo # In MariaDB GET is not reserved +--echo # + +CREATE TABLE t1 (get INT); +DROP TABLE t1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE get INT DEFAULT 1; +END| +DELIMITER ;| +DROP PROCEDURE p1; + +# but cannot be used as a label + +DELIMITER |; +--error ER_PARSE_ERROR +CREATE PROCEDURE p1() +get: +BEGIN + SELECT 1; +END get| +DELIMITER ;| + +--echo # +--echo # Test non-reserved keywords: CURRENT, DIAGNOSTICS, NUMBER, RETURNED_SQLSTATE +--echo # + +CREATE TABLE t1 (current INT, diagnostics INT, number INT, returned_sqlstate INT); +INSERT INTO t1 (current, diagnostics, number, returned_sqlstate) values (1,2,3,4); +SELECT current, diagnostics, number, returned_sqlstate FROM t1 WHERE number = 3; +SELECT `current`, `number` FROM t1 WHERE `current` = 1 AND `number` = 3; +DROP TABLE t1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE current INT DEFAULT 1; + DECLARE diagnostics INT DEFAULT 2; + DECLARE number INT DEFAULT 3; + DECLARE returned_sqlstate INT DEFAULT 4; + SELECT current, diagnostics, number, returned_sqlstate; +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo # +--echo # Test GET DIAGNOSTICS syntax +--echo # + +--disable_warnings +DROP PROCEDURE IF EXISTS p1; +--enable_warnings + +--error ER_PARSE_ERROR +GET; +--error ER_PARSE_ERROR +GET CURRENT; +--error ER_PARSE_ERROR +GET DIAGNOSTICS; +--error ER_PARSE_ERROR +GET CURRENT DIAGNOSTICS; + +--echo +--echo # Statement information syntax +--echo + +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var; + +--error ER_SP_UNDECLARED_VAR +GET DIAGNOSTICS var; + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + GET DIAGNOSTICS var; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_PARSE_ERROR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS var; +END| +DELIMITER ;| + +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var =; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var = INVALID; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var = MORE; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var = INVALID,; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var1 = NUMBER, @var2; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var1 = NUMBER, @var2 = INVALID; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @@var1 = NUMBER; +--error ER_PARSE_ERROR +GET DIAGNOSTICS @var1 = NUMBER, @@var2 = NUMBER; + +DELIMITER |; +--error ER_PARSE_ERROR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS var = INVALID; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + DECLARE var CONDITION FOR SQLSTATE '12345'; + GET DIAGNOSTICS var = NUMBER; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS var = NUMBER, var1 = ROW_COUNT; +END| +DELIMITER ;| + +GET DIAGNOSTICS @var = NUMBER; +GET DIAGNOSTICS @var = ROW_COUNT; +GET DIAGNOSTICS @var1 = NUMBER, @var2 = ROW_COUNT; +GET DIAGNOSTICS @var1 = ROW_COUNT, @var2 = NUMBER; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + DECLARE var1 INT; + DECLARE var2 INT; + GET DIAGNOSTICS var = NUMBER; + GET DIAGNOSTICS var = ROW_COUNT; + GET DIAGNOSTICS var1 = NUMBER, var2 = ROW_COUNT; + GET DIAGNOSTICS var1 = ROW_COUNT, var2 = NUMBER; +END| +DELIMITER ;| + +DROP PROCEDURE p1; + +--echo +--echo # Condition information syntax +--echo + +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION a; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1; + +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var; + +--error ER_SP_UNDECLARED_VAR +GET DIAGNOSTICS CONDITION 1 var; + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + GET DIAGNOSTICS CONDITION 1 var; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_PARSE_ERROR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS CONDITION 1 var; +END| +DELIMITER ;| + +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var =; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var = INVALID; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var = NUMBER; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var = INVALID,; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2 = INVALID; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @@var1 = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @@var2 = CLASS_ORIGIN; + +DELIMITER |; +--error ER_PARSE_ERROR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS CONDITION 1 var = INVALID; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + DECLARE var CONDITION FOR SQLSTATE '12345'; + GET DIAGNOSTICS CONDITION 1 var = NUMBER; +END| +DELIMITER ;| + +DELIMITER |; +--error ER_SP_UNDECLARED_VAR +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS CONDITION 1 var = CLASS_ORIGIN, var1 = SUBCLASS_ORIGIN; +END| +DELIMITER ;| + +GET DIAGNOSTICS CONDITION 1 @var = CLASS_ORIGIN; +GET DIAGNOSTICS CONDITION 1 @var = SUBCLASS_ORIGIN; +GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2 = SUBCLASS_ORIGIN; +GET DIAGNOSTICS CONDITION 1 @var1 = SUBCLASS_ORIGIN, @var2 = CLASS_ORIGIN; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + DECLARE var1 INT; + DECLARE var2 INT; + GET DIAGNOSTICS CONDITION 1 var = CLASS_ORIGIN; + GET DIAGNOSTICS CONDITION 1 var = SUBCLASS_ORIGIN; + GET DIAGNOSTICS CONDITION 1 var1 = CLASS_ORIGIN, var2 = SUBCLASS_ORIGIN; + GET DIAGNOSTICS CONDITION 1 var1 = SUBCLASS_ORIGIN, var2 = CLASS_ORIGIN; +END| +DELIMITER ;| + +DROP PROCEDURE p1; + +--echo # Condition number expression + +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION -1 @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION 1+1 @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION ? @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION (1) @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION p1() @var = CLASS_ORIGIN; +--error ER_PARSE_ERROR +GET DIAGNOSTICS CONDITION ABS(2) @var = CLASS_ORIGIN; + +# Unfortunate side effects... +GET DIAGNOSTICS CONDITION 1.1 @var = CLASS_ORIGIN; +GET DIAGNOSTICS CONDITION "1" @var = CLASS_ORIGIN; + +# Reset warnings +SELECT COUNT(max_questions) INTO @var FROM mysql.user; + +GET DIAGNOSTICS CONDITION 9999 @var = CLASS_ORIGIN; +GET DIAGNOSTICS CONDITION NULL @var = CLASS_ORIGIN; +GET DIAGNOSTICS CONDITION a @var = CLASS_ORIGIN; + +# Reset warnings +SELECT COUNT(max_questions) INTO @var FROM mysql.user; + +SET @cond = 1; +GET DIAGNOSTICS CONDITION @cond @var1 = CLASS_ORIGIN; + +SET @cond = "invalid"; +GET DIAGNOSTICS CONDITION @cond @var1 = CLASS_ORIGIN; + +# Reset warnings +SELECT COUNT(max_questions) INTO @var FROM mysql.user; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE cond INT DEFAULT 1; + DECLARE var INT; + GET DIAGNOSTICS CONDITION cond var = CLASS_ORIGIN; +END| +DELIMITER ;| + +DROP PROCEDURE p1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE cond TEXT; + DECLARE var INT; + GET DIAGNOSTICS CONDITION cond var = CLASS_ORIGIN; +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo # +--echo # Test GET DIAGNOSTICS runtime +--echo # + +--echo +--echo # GET DIAGNOSTICS cannot be the object of a PREPARE statement. +--echo + +--error ER_UNSUPPORTED_PS +PREPARE stmt FROM "GET DIAGNOSTICS CONDITION 1 @var = CLASS_ORIGIN"; +--error ER_UNSUPPORTED_PS +PREPARE stmt FROM "GET DIAGNOSTICS @var = NUMBER"; + +--echo +--echo # GET DIAGNOSTICS does not clear the diagnostics area. +--echo + +SELECT CAST(-19999999999999999999 AS SIGNED); +GET DIAGNOSTICS @var = NUMBER; +SHOW WARNINGS; + +--echo # +--echo # If GET DIAGNOSTICS itself causes an error, an error message is appended. +--echo # + +SELECT CAST(-19999999999999999999 AS SIGNED); +GET DIAGNOSTICS CONDITION 99999 @var = CLASS_ORIGIN; +SHOW WARNINGS; + +--echo +--echo # Statement information runtime +--echo + +SELECT CAST(-19999999999999999999 AS SIGNED), + CAST(-19999999999999999999 AS SIGNED); +GET DIAGNOSTICS @var = NUMBER; +SELECT @var; + +SELECT COUNT(max_questions) INTO @var FROM mysql.user; +GET DIAGNOSTICS @var = NUMBER; +SELECT @var; + +SELECT 1; +GET DIAGNOSTICS @var = ROW_COUNT; +SELECT @var; + +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1),(2),(3); +GET DIAGNOSTICS @var = ROW_COUNT; +SELECT @var; +DROP TABLE t1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE number INT; + DECLARE row_count INT; + + SELECT CAST(-19999999999999999999 AS SIGNED), + CAST(-19999999999999999999 AS SIGNED); + + GET DIAGNOSTICS number = NUMBER; + + CREATE TABLE t1 (a INT); + INSERT INTO t1 VALUES (1),(2),(3); + GET DIAGNOSTICS row_count = ROW_COUNT; + DROP TABLE t1; + + SELECT number, row_count; + +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo +--echo # Condition information runtime +--echo + +SELECT CAST(-19999999999999999999 AS SIGNED); + +GET DIAGNOSTICS CONDITION 1 + @class_origin = CLASS_ORIGIN, + @subclass_origin = SUBCLASS_ORIGIN, + @constraint_catalog = CONSTRAINT_CATALOG, + @constraint_schema = CONSTRAINT_SCHEMA, + @constraint_name = CONSTRAINT_NAME, + @catalog_name = CATALOG_NAME, + @schema_name = SCHEMA_NAME, + @table_name = TABLE_NAME, + @column_name = COLUMN_NAME, + @cursor_name = CURSOR_NAME, + @message_text = MESSAGE_TEXT, + @mysql_errno = MYSQL_ERRNO, + @returned_sqlstate = RETURNED_SQLSTATE; + +--vertical_results +SELECT + @class_origin, + @subclass_origin, + @constraint_catalog, + @constraint_schema, + @constraint_name, + @catalog_name, + @schema_name, + @table_name, + @column_name, + @cursor_name, + @message_text, + @mysql_errno, + @returned_sqlstate; +--horizontal_results + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE class_origin TEXT DEFAULT "a"; + DECLARE subclass_origin TEXT DEFAULT "a"; + DECLARE constraint_catalog TEXT DEFAULT "a"; + DECLARE constraint_schema TEXT DEFAULT "a"; + DECLARE constraint_name TEXT DEFAULT "a"; + DECLARE catalog_name TEXT DEFAULT "a"; + DECLARE schema_name TEXT DEFAULT "a"; + DECLARE table_name TEXT DEFAULT "a"; + DECLARE column_name TEXT DEFAULT "a"; + DECLARE cursor_name TEXT DEFAULT "a"; + DECLARE message_text TEXT DEFAULT "a"; + DECLARE mysql_errno INT DEFAULT 1; + DECLARE returned_sqlstate TEXT DEFAULT "a"; + + SELECT CAST(-19999999999999999999 AS SIGNED); + + GET DIAGNOSTICS CONDITION 1 + class_origin = CLASS_ORIGIN, + subclass_origin = SUBCLASS_ORIGIN, + constraint_catalog = CONSTRAINT_CATALOG, + constraint_schema = CONSTRAINT_SCHEMA, + constraint_name = CONSTRAINT_NAME, + catalog_name = CATALOG_NAME, + schema_name = SCHEMA_NAME, + table_name = TABLE_NAME, + column_name = COLUMN_NAME, + cursor_name = CURSOR_NAME, + message_text = MESSAGE_TEXT, + mysql_errno = MYSQL_ERRNO, + returned_sqlstate = RETURNED_SQLSTATE; + + SELECT + class_origin, + subclass_origin, + constraint_catalog, + constraint_schema, + constraint_name, + catalog_name, + schema_name, + table_name, + column_name, + cursor_name, + message_text, + mysql_errno, + returned_sqlstate; +END| +DELIMITER ;| + +--vertical_results +CALL p1(); +--horizontal_results + +DROP PROCEDURE p1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE errno1 INT; + DECLARE errno2 INT; + DECLARE msg1 TEXT; + DECLARE msg2 TEXT; + + SELECT CAST(-19999999999999999999 AS SIGNED); + GET DIAGNOSTICS CONDITION 99999 msg1 = MESSAGE_TEXT; + + GET DIAGNOSTICS CONDITION 1 errno1 = MYSQL_ERRNO, msg1 = MESSAGE_TEXT; + GET DIAGNOSTICS CONDITION 2 errno2 = MYSQL_ERRNO, msg2 = MESSAGE_TEXT; + + SELECT errno1, msg1, errno2, msg2; +END| +DELIMITER ;| + +--vertical_results +CALL p1(); +--horizontal_results + +DROP PROCEDURE p1; + +--echo +--echo # Interaction with SIGNAL +--echo + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE errno INT DEFAULT 0; + DECLARE msg TEXT DEFAULT "foo"; + DECLARE cond CONDITION FOR SQLSTATE "01234"; + DECLARE CONTINUE HANDLER for 1012 + BEGIN + GET DIAGNOSTICS CONDITION 1 errno = MYSQL_ERRNO, msg = MESSAGE_TEXT; + END; + + SIGNAL cond SET MESSAGE_TEXT = "Signal message", MYSQL_ERRNO = 1012; + + SELECT errno, msg; +END| +DELIMITER ;| + +--vertical_results +CALL p1(); +--horizontal_results + +DROP PROCEDURE p1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + SIGNAL SQLSTATE '77777' SET MYSQL_ERRNO = 1000, MESSAGE_TEXT='ÁÂÃÅÄ'; +END| +DELIMITER ;| + +--error 1000 +CALL p1(); + +GET DIAGNOSTICS CONDITION 1 + @mysql_errno = MYSQL_ERRNO, @message_text = MESSAGE_TEXT, + @returned_sqlstate = RETURNED_SQLSTATE, @class_origin = CLASS_ORIGIN; + +--vertical_results +SELECT @mysql_errno, @message_text, @returned_sqlstate, @class_origin; +--horizontal_results + +DROP PROCEDURE p1; + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE cond CONDITION FOR SQLSTATE '12345'; + SIGNAL cond SET + CLASS_ORIGIN = 'CLASS_ORIGIN text', + SUBCLASS_ORIGIN = 'SUBCLASS_ORIGIN text', + CONSTRAINT_CATALOG = 'CONSTRAINT_CATALOG text', + CONSTRAINT_SCHEMA = 'CONSTRAINT_SCHEMA text', + CONSTRAINT_NAME = 'CONSTRAINT_NAME text', + CATALOG_NAME = 'CATALOG_NAME text', + SCHEMA_NAME = 'SCHEMA_NAME text', + TABLE_NAME = 'TABLE_NAME text', + COLUMN_NAME = 'COLUMN_NAME text', + CURSOR_NAME = 'CURSOR_NAME text', + MESSAGE_TEXT = 'MESSAGE_TEXT text', + MYSQL_ERRNO = 54321; +END| +DELIMITER ;| + +--error 54321 +CALL p1(); + +GET DIAGNOSTICS CONDITION 1 + @class_origin = CLASS_ORIGIN, + @subclass_origin = SUBCLASS_ORIGIN, + @constraint_catalog = CONSTRAINT_CATALOG, + @constraint_schema = CONSTRAINT_SCHEMA, + @constraint_name = CONSTRAINT_NAME, + @catalog_name = CATALOG_NAME, + @schema_name = SCHEMA_NAME, + @table_name = TABLE_NAME, + @column_name = COLUMN_NAME, + @cursor_name = CURSOR_NAME, + @message_text = MESSAGE_TEXT, + @mysql_errno = MYSQL_ERRNO, + @returned_sqlstate = RETURNED_SQLSTATE; + +--vertical_results +SELECT + @class_origin, + @subclass_origin, + @constraint_catalog, + @constraint_schema, + @constraint_name, + @catalog_name, + @schema_name, + @table_name, + @column_name, + @cursor_name, + @message_text, + @mysql_errno, + @returned_sqlstate; +--horizontal_results + +DROP PROCEDURE p1; + +--echo # +--echo # Demonstration +--echo # + +--echo +--echo # The same statement information item can be used multiple times. +--echo + +SHOW WARNINGS; +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE var INT; + GET DIAGNOSTICS var = NUMBER, @var = NUMBER; + SELECT var, @var; +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo +--echo # Setting TABLE_NAME is currently not implemented. +--echo + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE v VARCHAR(64); + DECLARE CONTINUE HANDLER FOR SQLEXCEPTION + GET DIAGNOSTICS CONDITION 1 v = TABLE_NAME; + DROP TABLE no_such_table; + SELECT v; +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo +--echo # Message is truncated to fit into target. No truncation warning. +--echo + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE v CHAR(1); + CREATE TABLE IF NOT EXISTS t1 (a INT); + GET DIAGNOSTICS CONDITION 1 v = MESSAGE_TEXT; + SELECT v; +END| +DELIMITER ;| + +CREATE TABLE t1 (a INT); +CALL p1(); +DROP TABLE t1; + +DROP PROCEDURE p1; + +--echo +--echo # Returns number of rows updated by the UPDATE statements. +--echo + +DELIMITER |; +CREATE PROCEDURE p1(IN param INT) +LANGUAGE SQL +BEGIN + DECLARE v INT DEFAULT 0; + DECLARE rcount_each INT; + DECLARE rcount_total INT DEFAULT 0; + WHILE v < 5 DO + UPDATE t1 SET a = a * 1.1 WHERE b = param; + GET DIAGNOSTICS rcount_each = ROW_COUNT; + SET rcount_total = rcount_total + rcount_each; + SET v = v + 1; + END WHILE; + SELECT rcount_total; +END| +DELIMITER ;| + +CREATE TABLE t1 (a REAL, b INT); +INSERT INTO t1 VALUES (1.1, 1); +CALL p1(1); +DROP TABLE t1; + +DROP PROCEDURE p1; + +--echo +--echo # GET DIAGNOSTICS doesn't clear the diagnostics area. +--echo + +DELIMITER |; +CREATE PROCEDURE p1() +BEGIN + DECLARE CONTINUE HANDLER FOR SQLWARNING + BEGIN + GET CURRENT DIAGNOSTICS CONDITION 1 @x = RETURNED_SQLSTATE; + SIGNAL SQLSTATE '01002'; + GET CURRENT DIAGNOSTICS CONDITION 1 @y = RETURNED_SQLSTATE; + END; + SIGNAL SQLSTATE '01001'; + SELECT @x, @y; +END| +DELIMITER ;| + +CALL p1(); + +DROP PROCEDURE p1; + +--echo +--echo # Using OUT and INOUT parameters as the target variables. +--echo + +DELIMITER |; +CREATE PROCEDURE p1(OUT number INT, INOUT message TEXT) +BEGIN + DECLARE warn CONDITION FOR SQLSTATE "01234"; + DECLARE CONTINUE HANDLER FOR SQLWARNING + BEGIN + GET DIAGNOSTICS number = NUMBER; + GET DIAGNOSTICS CONDITION 1 message = MESSAGE_TEXT; + END; + SELECT message; + SIGNAL warn SET MESSAGE_TEXT = "inout parameter"; +END| +DELIMITER ;| + +SET @var1 = 0; +SET @var2 = "message text"; +CALL p1(@var1, @var2); +SELECT @var1, @var2; + +DROP PROCEDURE p1; + +--echo +--echo # Using an IN parameter as the target variable. +--echo + +DELIMITER |; +CREATE PROCEDURE p1(IN number INT) +BEGIN + SELECT number; + GET DIAGNOSTICS number = NUMBER; + SELECT number; +END| +DELIMITER ;| + +SET @var1 = 9999; +CALL p1(@var1); +SELECT @var1; + +DROP PROCEDURE p1; + +--echo +--echo # Using GET DIAGNOSTICS in a stored function. +--echo + +DELIMITER |; +CREATE FUNCTION f1() RETURNS TEXT +BEGIN + DECLARE message TEXT; + DECLARE warn CONDITION FOR SQLSTATE "01234"; + DECLARE CONTINUE HANDLER FOR SQLWARNING + BEGIN + GET DIAGNOSTICS CONDITION 1 message = MESSAGE_TEXT; + END; + SIGNAL warn SET MESSAGE_TEXT = "message text"; + return message; +END| +DELIMITER ;| + +SELECT f1(); + +DROP FUNCTION f1; + +--echo +--echo # Using GET DIAGNOSTICS in a trigger. +--echo + +CREATE TABLE t1 (a INT); + +DELIMITER |; +CREATE TRIGGER trg1 BEFORE INSERT ON t1 FOR EACH ROW +BEGIN + DECLARE var INT DEFAULT row_count(); + GET DIAGNOSTICS @var1 = ROW_COUNT; + SET @var2 = var; +END| +DELIMITER ;| + +SET @var1 = 9999, @var2 = 9999; +INSERT INTO t1 VALUES (1), (2); +SELECT @var1, @var2; + +DROP TRIGGER trg1; +DROP TABLE t1; + +--echo +--echo # GET DIAGNOSTICS does not reset ROW_COUNT +--echo + +CREATE TABLE t1 (a INT); +INSERT INTO t1 VALUES (1); +GET DIAGNOSTICS @var1 = ROW_COUNT; +GET DIAGNOSTICS @var2 = ROW_COUNT; +SELECT @var1, @var2; +DROP TABLE t1; + +--echo +--echo # Items are UTF8 (utf8_general_ci default collation) +--echo + +SELECT CAST(-19999999999999999999 AS SIGNED); +GET DIAGNOSTICS CONDITION 1 @var1 = MESSAGE_TEXT, @var2 = CLASS_ORIGIN; +SELECT CHARSET(@var1), COLLATION(@var1), COERCIBILITY(@var1); +SELECT CHARSET(@var2), COLLATION(@var2), COERCIBILITY(@var2); + +--echo # +--echo # Command statistics +--echo # + +FLUSH STATUS; +SHOW STATUS LIKE 'Com%get_diagnostics'; +GET DIAGNOSTICS @var1 = NUMBER; +SHOW STATUS LIKE 'Com%get_diagnostics'; |