MDEV-39022 Add LOCAL spvar syntax for prepared statements and SYS_R…

mysql-test/main/ps-local.result

@@ -0,0 +1,142 @@
+SET NAMES utf8mb3;
+PREPARE LOCAL spvar FROM 'SELECT 1';
+ERROR 42000: Undeclared variable: spvar
+EXECUTE LOCAL spvar;
+ERROR 42000: Undeclared variable: spvar
+DEALLOCATE PREPARE LOCAL spvar;
+ERROR 42000: Undeclared variable: spvar
+OPEN c0 FOR LOCAL spvar;
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'OPEN c0 FOR LOCAL spvar' at line 1
+CREATE OR REPLACE PROCEDURE p1()
+BEGIN
+DECLARE `` TEXT DEFAULT 'stmt';
+PREPARE LOCAL `` FROM 'CREATE TABLE t1 (a INT)';
+EXECUTE LOCAL ``;
+DEALLOCATE PREPARE LOCAL ``;
+DROP TABLE t1;
+END;
+$$
+CALL p1;
+DROP PROCEDURE p1;
+SET sql_mode=ORACLE;
+CREATE PROCEDURE p1 AS
+c0 SYS_REFCURSOR;
+v0 TEXT;
+`` TEXT := 'stmt';
+BEGIN
+PREPARE LOCAL `` FROM 'SELECT 1';
+OPEN c0 FOR LOCAL ``;
+FETCH c0 INTO v0;
+SELECT v0;
+CLOSE c0;
+DEALLOCATE PREPARE LOCAL ``;
+END;
+$$
+CALL p1;
+v0
+1
+DROP PROCEDURE p1;
+SET sql_mode=DEFAULT;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar TEXT DEFAULT '';
+PREPARE LOCAL spvar FROM 'CREATE TABLE t1 (a INT)';
+EXECUTE LOCAL spvar;
+DEALLOCATE PREPARE LOCAL spvar;
+DROP TABLE t1;
+END;
+$$
+CALL p1;
+DROP PROCEDURE p1;
+SET sql_mode=ORACLE;
+CREATE PROCEDURE p1 AS
+c0 SYS_REFCURSOR;
+v0 TEXT;
+spvar TEXT := '';
+BEGIN
+PREPARE LOCAL spvar FROM 'SELECT 1';
+OPEN c0 FOR LOCAL spvar;
+FETCH c0 INTO v0;
+SELECT v0;
+CLOSE c0;
+DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+CALL p1;
+v0
+1
+DROP PROCEDURE p1;
+SET sql_mode=DEFAULT;
+SET sql_mode=ORACLE;
+CREATE PROCEDURE p1 AS
+TYPE rec0_t IS RECORD (a INT, b INT);
+TYPE cur0_t IS REF CURSOR RETURN rec0_t;
+c0 cur0_t;
+ps_name VARCHAR(32) DEFAULT 'stmt';
+BEGIN
+PREPARE stmt FROM 'SELECT 1,2';
+OPEN c0 FOR LOCAL ps_name;
+END;
+$$
+ERROR HY000: Incorrect usage of c0 and OPEN..FOR LOCAL ps_name_variable
+SET sql_mode=DEFAULT;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+EXECUTE LOCAL spvar;
+DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+CALL p1;
+c0
+1
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+PREPARE stmt FROM 'SELECT 1 AS c0';
+EXECUTE LOCAL spvar;
+DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+CALL p1;
+c0
+1
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+EXECUTE stmt;
+DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+CALL p1;
+c0
+1
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+EXECUTE LOCAL spvar;
+DEALLOCATE PREPARE stmt;
+END;
+$$
+CALL p1;
+c0
+1
+DROP PROCEDURE p1;
+CREATE PROCEDURE p1()
+BEGIN
+DECLARE spvar VARCHAR(32) CHARACTER SET latin1 DEFAULT 'àçé';
+PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+EXECUTE LOCAL spvar;
+DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+CALL p1;
+c0
+1
+DROP PROCEDURE p1;

mysql-test/main/ps-local.test

@@ -0,0 +1,191 @@
+SET NAMES utf8mb3;
+
+# LOCAL outside of a stored routine
+
+--error ER_SP_UNDECLARED_VAR
+PREPARE LOCAL spvar FROM 'SELECT 1';
+
+--error ER_SP_UNDECLARED_VAR
+EXECUTE LOCAL spvar;
+
+--error ER_SP_UNDECLARED_VAR
+DEALLOCATE PREPARE LOCAL spvar;
+
+--error ER_PARSE_ERROR
+OPEN c0 FOR LOCAL spvar;
+
+
+# Empty LOCAL variable name: EXECUTE
+
+DELIMITER $$;
+CREATE OR REPLACE PROCEDURE p1()
+BEGIN
+  DECLARE `` TEXT DEFAULT 'stmt';
+  PREPARE LOCAL `` FROM 'CREATE TABLE t1 (a INT)';
+  EXECUTE LOCAL ``;
+  DEALLOCATE PREPARE LOCAL ``;
+  DROP TABLE t1;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+
+# Empty LOCAL variable name: CURSOR
+
+SET sql_mode=ORACLE;
+DELIMITER $$;
+CREATE PROCEDURE p1 AS
+  c0 SYS_REFCURSOR;
+  v0 TEXT;
+  `` TEXT := 'stmt';
+BEGIN
+  PREPARE LOCAL `` FROM 'SELECT 1';
+  OPEN c0 FOR LOCAL ``;
+  FETCH c0 INTO v0;
+  SELECT v0;
+  CLOSE c0;
+  DEALLOCATE PREPARE LOCAL ``;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+SET sql_mode=DEFAULT;
+
+
+# LOCAL variable evaluates to an empty PS name: EXECUTE
+# We support this because we also support PREPARE `` FROM '...';
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar TEXT DEFAULT '';
+  PREPARE LOCAL spvar FROM 'CREATE TABLE t1 (a INT)';
+  EXECUTE LOCAL spvar;
+  DEALLOCATE PREPARE LOCAL spvar;
+  DROP TABLE t1;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+
+# LOCAL variable evaluates to an empty PS name: CURSOR
+
+SET sql_mode=ORACLE;
+DELIMITER $$;
+CREATE PROCEDURE p1 AS
+  c0 SYS_REFCURSOR;
+  v0 TEXT;
+  spvar TEXT := '';
+BEGIN
+  PREPARE LOCAL spvar FROM 'SELECT 1';
+  OPEN c0 FOR LOCAL spvar;
+  FETCH c0 INTO v0;
+  SELECT v0;
+  CLOSE c0;
+  DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+SET sql_mode=DEFAULT;
+
+
+# OPEN strict_cursor_variable FROM LOCAL ps_name_variable -- not supported
+SET sql_mode=ORACLE;
+DELIMITER $$;
+--error ER_WRONG_USAGE
+CREATE PROCEDURE p1 AS
+  TYPE rec0_t IS RECORD (a INT, b INT);
+  TYPE cur0_t IS REF CURSOR RETURN rec0_t;
+  c0 cur0_t;
+  ps_name VARCHAR(32) DEFAULT 'stmt';
+BEGIN
+  PREPARE stmt FROM 'SELECT 1,2';
+  OPEN c0 FOR LOCAL ps_name;
+END;
+$$
+DELIMITER ;$$
+SET sql_mode=DEFAULT;
+
+
+# PREPARE extended; EXECUTE extended; DEALLOCATE extended;
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+  PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+  EXECUTE LOCAL spvar;
+  DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+# PREPARE simple; EXECUTE extended; DEALLOCATE extended;
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+  PREPARE stmt FROM 'SELECT 1 AS c0';
+  EXECUTE LOCAL spvar;
+  DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+# PREPARE extended; EXECUTE simple; DEALLOCATE extended;
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+  PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+  EXECUTE stmt;
+  DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+# PREPARE extended; EXECUTE extended; DEALLOCATE simple;
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar VARCHAR(32) DEFAULT 'stmt';
+  PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+  EXECUTE LOCAL spvar;
+  DEALLOCATE PREPARE stmt;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;
+
+
+# Extended name with non-ASCII characters
+
+DELIMITER $$;
+CREATE PROCEDURE p1()
+BEGIN
+  DECLARE spvar VARCHAR(32) CHARACTER SET latin1 DEFAULT 'àçé';
+  PREPARE LOCAL spvar FROM 'SELECT 1 AS c0';
+  EXECUTE LOCAL spvar;
+  DEALLOCATE PREPARE LOCAL spvar;
+END;
+$$
+DELIMITER ;$$
+CALL p1;
+DROP PROCEDURE p1;